Remove untested and unfinished code

* Do not show remaining amount for topup invoices in expiry message

As [reported by @petzsch](https://chat.btcpayserver.org/btcpayserver/pl/gg1zy8t5h3dq7nme1nom93migo).

* Fix links on result page in Checkout Classic

Closes #4344.

* Better way to exclude Lightning if BIP21 is active and we have both PMs


Unify margins

.circleci/config.yml

@@ -2,7 +2,7 @@ version: 2
 jobs:
   fast_tests:
     machine:
-        enabled: true
+      image: ubuntu-2004:202111-02
     steps:
       - checkout
       - run:
@@ -10,7 +10,7 @@ jobs:
             cd .circleci && ./run-tests.sh "Fast=Fast|ThirdParty=ThirdParty" && ./can-build.sh
   selenium_tests:
     machine:
-        enabled: true
+      image: ubuntu-2004:202111-02
     steps:
       - checkout
       - run:
@@ -18,7 +18,7 @@ jobs:
             cd .circleci && ./run-tests.sh "Selenium=Selenium"
   integration_tests:
     machine:
-        enabled: true
+      image: ubuntu-2004:202111-02
     steps:
       - checkout
       - run:
@@ -26,72 +26,69 @@ jobs:
             cd .circleci && ./run-tests.sh "Integration=Integration"
   trigger_docs_build:
     machine:
-        enabled: true
-        image: circleci/classic:201808-01
+      image: ubuntu-2004:202111-02
     steps:
       - run:
           command: |
-            curl -X POST -H "Authorization: token $GH_PAT"  -H "Accept: application/vnd.github.everest-preview+json"  -H "Content-Type: application/json" https://api.github.com/repos/btcpayserver/btcpayserver-doc/dispatches --data '{"event_type": "build_docs"}'
+            curl -X POST -H "Authorization: token $GH_PAT" -H "Accept: application/vnd.github.everest-preview+json" -H "Content-Type: application/json" https://api.github.com/repos/btcpayserver/btcpayserver-doc/dispatches --data '{"event_type": "build_docs"}'
 
   # publish jobs require $DOCKERHUB_REPO, $DOCKERHUB_USER, $DOCKERHUB_PASS defined
   amd64:
     machine:
-        enabled: true
+      image: ubuntu-2004:202111-02
     steps:
-      - checkout  
+      - checkout
       - run:
           command: |
             LATEST_TAG=${CIRCLE_TAG:1} #trim v from tag
+            GIT_COMMIT=$(git rev-parse HEAD)
             #
-            sudo docker build --pull -t $DOCKERHUB_REPO:$LATEST_TAG-amd64 -f amd64.Dockerfile .
-            sudo docker build --pull --build-arg CONFIGURATION_NAME=Altcoins-Release -t $DOCKERHUB_REPO:$LATEST_TAG-altcoins-amd64 -f amd64.Dockerfile .
+            sudo docker build --build-arg GIT_COMMIT=${GIT_COMMIT} --pull -t $DOCKERHUB_REPO:$LATEST_TAG-amd64 -f amd64.Dockerfile .
+            sudo docker build --build-arg GIT_COMMIT=${GIT_COMMIT} --pull --build-arg CONFIGURATION_NAME=Altcoins-Release -t $DOCKERHUB_REPO:$LATEST_TAG-altcoins-amd64 -f amd64.Dockerfile .
             sudo docker login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
             sudo docker push $DOCKERHUB_REPO:$LATEST_TAG-amd64
             sudo docker push $DOCKERHUB_REPO:$LATEST_TAG-altcoins-amd64
 
   arm32v7:
     machine:
-        enabled: true
+      image: ubuntu-2004:202111-02
     steps:
-      - checkout  
+      - checkout
       - run:
           command: |
             sudo docker run --rm --privileged multiarch/qemu-user-static:register --reset
             LATEST_TAG=${CIRCLE_TAG:1} #trim v from tag
+            GIT_COMMIT=$(git rev-parse HEAD)
             #
-            sudo docker build --pull -t $DOCKERHUB_REPO:$LATEST_TAG-arm32v7 -f arm32v7.Dockerfile .
-            sudo docker build --pull --build-arg CONFIGURATION_NAME=Altcoins-Release -t $DOCKERHUB_REPO:$LATEST_TAG-altcoins-arm32v7 -f arm32v7.Dockerfile .
+            sudo docker build --build-arg GIT_COMMIT=${GIT_COMMIT} --pull -t $DOCKERHUB_REPO:$LATEST_TAG-arm32v7 -f arm32v7.Dockerfile .
+            sudo docker build --build-arg GIT_COMMIT=${GIT_COMMIT} --pull --build-arg CONFIGURATION_NAME=Altcoins-Release -t $DOCKERHUB_REPO:$LATEST_TAG-altcoins-arm32v7 -f arm32v7.Dockerfile .
             sudo docker login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
             sudo docker push $DOCKERHUB_REPO:$LATEST_TAG-arm32v7
             sudo docker push $DOCKERHUB_REPO:$LATEST_TAG-altcoins-arm32v7
 
   arm64v8:
     machine:
-        enabled: true
+      image: ubuntu-2004:202111-02
     steps:
-      - checkout  
+      - checkout
       - run:
           command: |
             sudo docker run --rm --privileged multiarch/qemu-user-static:register --reset
             LATEST_TAG=${CIRCLE_TAG:1} #trim v from tag
+            GIT_COMMIT=$(git rev-parse HEAD)
             #
-            sudo docker build --pull -t $DOCKERHUB_REPO:$LATEST_TAG-arm64v8 -f arm64v8.Dockerfile .
-            sudo docker build --build-arg CONFIGURATION_NAME=Altcoins-Release --pull -t $DOCKERHUB_REPO:$LATEST_TAG-altcoins-arm64v8 -f arm64v8.Dockerfile .
+            sudo docker build --build-arg GIT_COMMIT=${GIT_COMMIT} --pull -t $DOCKERHUB_REPO:$LATEST_TAG-arm64v8 -f arm64v8.Dockerfile .
+            sudo docker build --build-arg GIT_COMMIT=${GIT_COMMIT} --build-arg CONFIGURATION_NAME=Altcoins-Release --pull -t $DOCKERHUB_REPO:$LATEST_TAG-altcoins-arm64v8 -f arm64v8.Dockerfile .
             sudo docker login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
             sudo docker push $DOCKERHUB_REPO:$LATEST_TAG-arm64v8
             sudo docker push $DOCKERHUB_REPO:$LATEST_TAG-altcoins-arm64v8
 
   multiarch:
     machine:
-      enabled: true
-      image: circleci/classic:201808-01
+      image: ubuntu-2004:202201-02
     steps:
       - run:
           command: |
-            # Turn on Experimental features
-            sudo mkdir $HOME/.docker
-            sudo sh -c 'echo "{ \"experimental\": \"enabled\" }" >> $HOME/.docker/config.json'
-            #
             sudo docker login --username=$DOCKERHUB_USER --password=$DOCKERHUB_PASS
             #
             LATEST_TAG=${CIRCLE_TAG:1} #trim v from tag
@@ -100,8 +97,7 @@ jobs:
             sudo docker manifest annotate $DOCKERHUB_REPO:$LATEST_TAG $DOCKERHUB_REPO:$LATEST_TAG-arm32v7 --os linux --arch arm --variant v7
             sudo docker manifest annotate $DOCKERHUB_REPO:$LATEST_TAG $DOCKERHUB_REPO:$LATEST_TAG-arm64v8 --os linux --arch arm64 --variant v8
             sudo docker manifest push $DOCKERHUB_REPO:$LATEST_TAG -p
-            
-            
+
             sudo docker manifest create --amend $DOCKERHUB_REPO:$LATEST_TAG-altcoins $DOCKERHUB_REPO:$LATEST_TAG-altcoins-amd64 $DOCKERHUB_REPO:$LATEST_TAG-altcoins-arm32v7 $DOCKERHUB_REPO:$LATEST_TAG-altcoins-arm64v8
             sudo docker manifest annotate $DOCKERHUB_REPO:$LATEST_TAG-altcoins $DOCKERHUB_REPO:$LATEST_TAG-altcoins-amd64 --os linux --arch amd64
             sudo docker manifest annotate $DOCKERHUB_REPO:$LATEST_TAG-altcoins $DOCKERHUB_REPO:$LATEST_TAG-altcoins-arm32v7 --os linux --arch arm --variant v7

.circleci/run-tests.sh

@@ -4,6 +4,15 @@ set -e
 cd ../BTCPayServer.Tests
 docker-compose -v
 docker-compose -f "docker-compose.altcoins.yml" down --v
-docker-compose -f "docker-compose.altcoins.yml" pull
+
+# For some reason, docker-compose pull fails time to time, so we try several times
+n=0
+until [ "$n" -ge 10 ]
+do
+   docker-compose -f "docker-compose.altcoins.yml" pull && break
+   n=$((n+1)) 
+   sleep 5
+done
+
 docker-compose -f "docker-compose.altcoins.yml" build
 docker-compose -f "docker-compose.altcoins.yml" run -e "TEST_FILTERS=$1" tests

.editorconfig

@@ -12,7 +12,7 @@ indent_style = space
 indent_size = 4
 charset = utf-8
 
-[launchSettings.json]
+[*.json]
 indent_size = 2
 
 # C# files

.github/ISSUE_TEMPLATE/bug-report.md

@@ -1,63 +0,0 @@
----
-name: "\U0001F41B Bug report"
-about: Report a bug or a technical issue
-
----
-
-<!--
-Thank you for reporting a technical issue.
-
-This issue tracker is only for bug reports and problems. 
-
-For general questions please read our documentation docs.btcpayserver.org. You can ask technical questions in discussions https://github.com/btcpayserver/btcpayserver/discussions and general support on our community chat chat.btcpayserver.org
-
-Please fill in as much of the template below as you're able. 
--->
-
-**Describe the bug**
-A clear and concise description of what the bug is.
-
-**To Reproduce the bug**
-Steps to reproduce the reported bug:
-1. Go to '...'
-2. Click on '....'
-3. Scroll down to '....'
-4. See error
-
-**Expected behavior**
-
-<!--
-A clear and concise description of what you expected to happen.
--->
-
-**Screenshots**
-
-
-<!--
-If applicable, add screenshots to help explain your problem.
--->
-
-**Your BTCPay Environment (please complete the following information):**
-- BTCPay Server Version:    <!--[available in the right bottom corner of footer] -->
-- Deployment Method:        <!--[e.g. Docker, Manual, Third-Party-host]-->
-- Browser:                  <!--[e.g. Chrome, Safari]-->
-
-**Logs (if applicable)**
-
-
-<!--
-Basic logs can be found in Server Settings > Logs. 
-More logs https://docs.btcpayserver.org/Troubleshooting/#2-looking-through-the-logs
--->
-
-**Setup Parameters**
-
-<!--
-If you're reporting a deployment issue run `. btcpay-setup.sh -i` and paste the setup parameters here with your private information removed or obscured.
--->
-
-**Additional context**
-
-<!--
-Add any other context about the problem here.
--->

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,68 @@
+name: 🐛 Bug Report
+description: File a bug report
+title: "[Bug]: "
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to fill out this bug report! Please provide as much information as you can. It helps us better understand the problem and fix it faster.
+  - type: textarea
+    id: version
+    attributes:
+      label: What is your BTCPay version?
+      description: You can see the version in the footer's bottom right corner
+      placeholder: I'm running BTCPay v1.X.X.X
+    validations:
+      required: true
+  - type: textarea
+    id: deployment
+    attributes:
+      label: How did you deploy BTCPay Server?
+      description: Docker, manual, third-party host? Read more on deployment methods [here](https://docs.btcpayserver.org/Deployment/)
+      placeholder: I'm running BTCPay Server on a...
+    validations:
+      required: true
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      description: A clear and concise description of what the bug is.
+      placeholder: Tell us what you see!
+    validations:
+      required: true
+  - type: textarea
+    id: reproduce
+    attributes:
+      label: How did you encounter this bug?
+      description: Step by step describe how did you encounter the bug?
+      placeholder: 1. I clicked X 2. Then I clicked Y 3. See error
+    validations:
+      required: true
+  - type: textarea
+    id: logoutput
+    attributes:
+      label: Relevant log output
+      description: Please copy and paste any relevant log output. This will be automatically formatted into code, so no need for backticks. Logs can be found in Server Settings > Logs. Here's how you can [troubleshoot an issue](https://docs.btcpayserver.org/Troubleshooting/)
+      render: shell
+  - type: textarea
+    id: browser
+    attributes:
+      label: What browser do you use?
+      description: Provide your browser and it's version. If you replicated issues on multiple browsers, let us know which ones.
+      placeholder: For example Safari 15.00, Chrome 10.0, Tor, Edge, etc
+    validations:
+      required: false
+  - type: textarea
+    id: additonal
+    attributes:
+      label: Additional information
+      description: Feel free to provide additional information. Screenshots are always helpful.
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Are you sure this is a bug report?
+      description: By submitting this report, you agree that this is not a support or a feature request. For general questions please read our [documentation](https://docs.btcpayserver.org). You can ask questions in [discussions](https://github.com/btcpayserver/btcpayserver/discussions) and [on our community chat](https://chat.btcpayserver.org)
+      options:
+        - label: I confirm this is a bug report
+          required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -1,11 +1,11 @@
-blank_issues_enabled: false
-contact_links: 
-  - name: 🚀 Discussions  
+blank_issues_enabled: true
+contact_links:
+  - name: 🚀 Discussions
     url: https://github.com/btcpayserver/btcpayserver/discussions
-    about: Technical discussions, questions and feature requests    
+    about: Technical discussions, questions and feature requests
   - name: 📝 Official Documentation
     url: https://docs.btcpayserver.org
-    about: Check our documentation for answers to common questions 
-  - name: 💬 Community Support Chat  
+    about: Check our documentation for answers to common questions
+  - name: 💬 Community Support Chat
     url: https://chat.btcpayserver.org/
     about: Ask general questions and get community support in real-time

.gitignore

@@ -288,10 +288,6 @@ __pycache__/
 *.xsd.cs
 /BTCPayServer/Build/dockerfiles
 
-# Bundling JS/CSS
-BTCPayServer/wwwroot/bundles/*
-!BTCPayServer/wwwroot/bundles/.gitignore
-
 .vscode/*
 !.vscode/launch.json
 !.vscode/tasks.json
@@ -299,3 +295,6 @@ BTCPayServer/wwwroot/bundles/*
 BTCPayServer/testpwd
 .DS_Store
 Packed Plugins
+Plugins/packed
+
+BTCPayServer/wwwroot/swagger/v1/openapi.json

BTCPayServer.Abstractions/BTCPayServer.Abstractions.csproj

@@ -31,10 +31,11 @@
     <None Include="icon.png" Pack="true" PackagePath="\" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.1" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.1" />
-    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.1" />
-    <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="6.0.0" />
+    <PackageReference Include="HtmlSanitizer" Version="5.0.372" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.9" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.9" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.7" />
+    <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="6.0.1" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\BTCPayServer.Client\BTCPayServer.Client.csproj" />

BTCPayServer.Abstractions/Configuration/DataDirectories.cs

@@ -6,7 +6,6 @@ namespace BTCPayServer.Configuration
         public string PluginDir { get; set; }
         public string TempStorageDir { get; set; }
         public string StorageDir { get; set; }
+        public string TempDir { get; set; }
     }
-
-
 }

BTCPayServer.Abstractions/Constants/WellKnownTempData.cs

@@ -0,0 +1,7 @@
+namespace BTCPayServer.Abstractions.Constants;
+
+public class WellKnownTempData
+{
+    public const string SuccessMessage = nameof(SuccessMessage);
+    public const string ErrorMessage = nameof(ErrorMessage);
+}

BTCPayServer.Abstractions/Contracts/BaseDbContextFactory.cs

@@ -25,7 +25,7 @@ namespace BTCPayServer.Abstractions.Contracts
         class CustomNpgsqlMigrationsSqlGenerator : NpgsqlMigrationsSqlGenerator
         {
 #pragma warning disable EF1001 // Internal EF Core API usage.
-            public CustomNpgsqlMigrationsSqlGenerator(MigrationsSqlGeneratorDependencies dependencies, Npgsql.EntityFrameworkCore.PostgreSQL.Infrastructure.Internal.INpgsqlOptions opts) : base(dependencies, opts)
+            public CustomNpgsqlMigrationsSqlGenerator(MigrationsSqlGeneratorDependencies dependencies, Npgsql.EntityFrameworkCore.PostgreSQL.Infrastructure.Internal.INpgsqlSingletonOptions opts) : base(dependencies, opts)
 #pragma warning restore EF1001 // Internal EF Core API usage.
             {
             }

BTCPayServer.Abstractions/Contracts/IBTCPayServerClientFactory.cs

@@ -1,10 +1,12 @@
 using System.Threading.Tasks;
 using BTCPayServer.Client;
+using Microsoft.AspNetCore.Http;
 
 namespace BTCPayServer.Abstractions.Contracts
 {
     public interface IBTCPayServerClientFactory
     {
         Task<BTCPayServerClient> Create(string userId, params string[] storeIds);
+        Task<BTCPayServerClient> Create(string userId, string[] storeIds, HttpContext httpRequest);
     }
 }

BTCPayServer.Abstractions/Contracts/IFileService.cs

@@ -0,0 +1,17 @@
+#nullable enable
+using System;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+
+namespace BTCPayServer.Abstractions.Contracts;
+
+public interface IFileService
+{
+    Task<bool> IsAvailable();
+    Task<IStoredFile> AddFile(IFormFile file, string userId);
+    Task<IStoredFile> AddFile(Uri file, string userId);
+    Task<string?> GetFileUrl(Uri baseUri, string fileId);
+    Task<string?> GetTemporaryFileUrl(Uri baseUri, string fileId, DateTimeOffset expiry,
+        bool isDownload);
+    Task RemoveFile(string fileId, string userId);
+}

BTCPayServer.Abstractions/Contracts/IScopeProvider.cs

@@ -0,0 +1,7 @@
+#nullable enable
+namespace BTCPayServer.Abstractions.Contracts;
+
+public interface IScopeProvider
+{
+    string? GetCurrentStoreId();
+}

BTCPayServer.Abstractions/Contracts/IStoreRepository.cs

@@ -0,0 +1,12 @@
+#nullable enable
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Abstractions.Contracts;
+
+public interface IStoreRepository
+{
+    Task<T?> GetSettingAsync<T>(string storeId, string name) where T : class;
+    Task<Dictionary<string, T?>> GetSettingsAsync<T>(string name) where T : class;
+    Task UpdateSetting<T>(string storeId, string name, T obj) where T : class;
+}

BTCPayServer.Abstractions/Contracts/IStoredFile.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace BTCPayServer.Abstractions.Contracts;
+
+public interface IStoredFile
+{
+    string Id { get; set; }
+    string FileName { get; set; }
+    string StorageFileName { get; set; }
+    DateTime Timestamp { get; set; }
+    string ApplicationUserId { get; set; }
+}

BTCPayServer.Abstractions/Contracts/ISwaggerProvider.cs

@@ -0,0 +1,9 @@
+using System.Threading.Tasks;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Abstractions.Contracts;
+
+public interface ISwaggerProvider
+{
+    Task<JObject> Fetch();
+}

BTCPayServer.Abstractions/Contracts/IUTXOLocker.cs

@@ -0,0 +1,13 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using NBitcoin;
+
+namespace BTCPayServer.Payments.PayJoin;
+
+public interface IUTXOLocker
+{
+    Task<bool> TryLock(OutPoint outpoint);
+    Task<bool> TryUnlock(params OutPoint[] outPoints);
+    Task<bool> TryLockInputs(OutPoint[] outPoints);
+    Task<HashSet<OutPoint>> FindLocks(OutPoint[] outpoints);
+}

BTCPayServer.Abstractions/Custodians/Client/AssetQuoteResult.cs

@@ -0,0 +1,19 @@
+namespace BTCPayServer.Abstractions.Custodians.Client;
+
+public class AssetQuoteResult
+{
+    public string FromAsset { get; set; }
+    public string ToAsset { get; set; }
+    public decimal Bid { get; set; }
+    public decimal Ask { get; set; }
+
+    public AssetQuoteResult() { }
+
+    public AssetQuoteResult(string fromAsset, string toAsset,decimal bid, decimal ask)
+    {
+        FromAsset = fromAsset;
+        ToAsset = toAsset;
+        Bid = bid;
+        Ask = ask;
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/AssetBalancesUnavailableException.cs

@@ -0,0 +1,11 @@
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class AssetBalancesUnavailableException : CustodianApiException
+{
+    
+    public AssetBalancesUnavailableException(System.Exception e) : base(500, "asset-balances-unavailable", $"Cannot fetch the asset balances: {e.Message}", e)
+    {
+    }
+
+    
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/AssetQuoteUnavailableException.cs

@@ -0,0 +1,13 @@
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class AssetQuoteUnavailableException : CustodianApiException
+{
+    public AssetPairData AssetPair { get; }
+
+    public AssetQuoteUnavailableException(AssetPairData assetPair) : base(400, "asset-price-unavailable", "Cannot find a quote for pair " + assetPair)
+    {
+        this.AssetPair = assetPair;
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/BadConfigException.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class BadConfigException : CustodianApiException
+{
+    public string[] BadConfigKeys { get; set; }
+
+    public BadConfigException(string[] badConfigKeys) : base(500, "bad-custodian-account-config", "Wrong config values: " + String.Join(", ", badConfigKeys))
+    {
+        this.BadConfigKeys = badConfigKeys;
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/CannotWithdrawException.cs

@@ -0,0 +1,13 @@
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class CannotWithdrawException : CustodianApiException
+
+{
+    public CannotWithdrawException(ICustodian custodian, string paymentMethod, string message) : base(403, "cannot-withdraw", message)
+    {
+    }
+
+    public CannotWithdrawException(ICustodian custodian, string paymentMethod, string targetAddress, CustodianApiException originalException) : base(403, "cannot-withdraw", $"{custodian.Name} cannot withdraw {paymentMethod} to '{targetAddress}': {originalException.Message}")
+    {
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/CustodianApiException.cs

@@ -0,0 +1,16 @@
+using System;
+namespace BTCPayServer.Abstractions.Custodians;
+public class CustodianApiException: Exception {
+    public int HttpStatus { get; }
+    public string Code { get; }
+
+    public CustodianApiException(int httpStatus, string code, string message, System.Exception ex) : base(message, ex)
+    {
+        HttpStatus = httpStatus;
+        Code = code;
+    }
+    public CustodianApiException( int httpStatus, string code, string message) : this(httpStatus, code, message, null)
+    {
+    }
+}
+

BTCPayServer.Abstractions/Custodians/Client/Exception/CustodianFeatureNotImplementedException.cs

@@ -0,0 +1,9 @@
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class CustodianFeatureNotImplementedException: CustodianApiException
+{
+    public CustodianFeatureNotImplementedException(string message) : base(400, "not-implemented", message)
+    {
+        
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/DepositsUnavailableException.cs

@@ -0,0 +1,8 @@
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class DepositsUnavailableException : CustodianApiException
+{
+    public DepositsUnavailableException(string message) : base(404, "deposits-unavailable", message)
+    {
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/InsufficientFundsException.cs

@@ -0,0 +1,9 @@
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class InsufficientFundsException : CustodianApiException
+{   
+    public InsufficientFundsException(string message) : base(400, "insufficient-funds", message)
+    {
+    }
+
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/InvalidWithdrawalTargetException.cs

@@ -0,0 +1,9 @@
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class InvalidWithdrawalTargetException : CustodianApiException
+
+{
+    public InvalidWithdrawalTargetException(ICustodian custodian, string paymentMethod, string targetAddress, CustodianApiException originalException) : base(403, "invalid-withdrawal-target", $"{custodian.Name} cannot withdraw {paymentMethod} to '{targetAddress}': {originalException.Message}")
+    {
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/PermissionDeniedCustodianApiException.cs

@@ -0,0 +1,9 @@
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class PermissionDeniedCustodianApiException : CustodianApiException
+
+{
+    public PermissionDeniedCustodianApiException(ICustodian custodian) : base(403, "custodian-api-permission-denied", $"{custodian.Name}'s API reported that you don't have permission.")
+    {
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/TradeNotFoundException.cs

@@ -0,0 +1,11 @@
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class TradeNotFoundException : CustodianApiException
+{
+    private string tradeId { get; }
+
+    public TradeNotFoundException(string tradeId) : base(404,"trade-not-found","Could not find trade ID " + tradeId)
+    {
+        this.tradeId = tradeId;
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/WithdrawalNotFoundException.cs

@@ -0,0 +1,11 @@
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class WithdrawalNotFoundException : CustodianApiException
+{
+    private string WithdrawalId { get; }
+
+    public WithdrawalNotFoundException(string withdrawalId) : base(404, "withdrawal-not-found", $"Could not find withdrawal ID {withdrawalId}.")
+    {
+        WithdrawalId = withdrawalId;
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/Exception/WrongTradingPairException.cs

@@ -0,0 +1,9 @@
+namespace BTCPayServer.Abstractions.Custodians;
+
+public class WrongTradingPairException: CustodianApiException
+{
+    public const int HttpCode = 404;
+    public WrongTradingPairException(string fromAsset, string toAsset) : base(HttpCode, "wrong-trading-pair", $"Cannot find a trading pair for converting {fromAsset} into {toAsset}.")
+    {
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/MarketTradeResult.cs

@@ -0,0 +1,29 @@
+using System.Collections.Generic;
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Abstractions.Custodians.Client;
+
+/**
+ * The result of a market trade. Used as a return type for custodians implementing ICanTrade
+ */
+public class MarketTradeResult
+{
+    public string FromAsset { get; }
+    public string ToAsset { get; }
+    /**
+     * The ledger entries that show the balances that were affected by the trade.
+     */
+    public List<LedgerEntryData> LedgerEntries { get; }
+    /**
+     * The unique ID of the trade that was executed.
+     */
+    public string TradeId { get; }
+
+    public MarketTradeResult(string fromAsset, string toAsset, List<LedgerEntryData> ledgerEntries, string tradeId)
+    {
+        this.FromAsset = fromAsset;
+        this.ToAsset = toAsset;
+        this.LedgerEntries = ledgerEntries;
+        this.TradeId = tradeId;
+    }
+}

BTCPayServer.Abstractions/Custodians/Client/WithdrawResult.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Abstractions.Custodians.Client;
+
+public class WithdrawResult
+{
+    public string PaymentMethod { get; }
+    public string Asset { get; set; }
+    public List<LedgerEntryData> LedgerEntries { get; }
+    public string WithdrawalId { get; }
+    public WithdrawalResponseData.WithdrawalStatus Status { get; }
+    public DateTimeOffset CreatedTime { get; }
+    public string TargetAddress { get; }
+    public string TransactionId { get; }
+
+    public WithdrawResult(string paymentMethod, string asset, List<LedgerEntryData> ledgerEntries, string withdrawalId, WithdrawalResponseData.WithdrawalStatus status, DateTimeOffset createdTime, string targetAddress, string transactionId)
+    {
+        PaymentMethod = paymentMethod;
+        Asset = asset;
+        LedgerEntries = ledgerEntries;
+        WithdrawalId = withdrawalId;
+        CreatedTime = createdTime;
+        Status = status;
+        TargetAddress = targetAddress;
+        TransactionId = transactionId;
+    }
+}

BTCPayServer.Abstractions/Custodians/ICanDeposit.cs

@@ -0,0 +1,17 @@
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Abstractions.Custodians;
+
+public interface ICanDeposit
+{
+    /**
+     * Get the address where we can deposit for the chosen payment method (crypto code + network).
+     * The result can be a string in different formats like a bitcoin address or even a LN invoice.
+     */
+    public Task<DepositAddressData> GetDepositAddressAsync(string paymentMethod, JObject config, CancellationToken cancellationToken);
+
+    public string[] GetDepositablePaymentMethods();
+}

BTCPayServer.Abstractions/Custodians/ICanTrade.cs

@@ -0,0 +1,33 @@
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Abstractions.Custodians.Client;
+using BTCPayServer.Client.Models;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Abstractions.Custodians;
+
+public interface ICanTrade
+{
+
+    
+    /**
+     * A list of tradable asset pairs, or NULL if the custodian cannot trade/convert assets. if thr asset pair contains fiat, fiat is always put last. If both assets are a cyrptocode or both are fiat, the pair is written alphabetically. Always in uppercase. Example: ["BTC/EUR","BTC/USD", "EUR/USD", "BTC/ETH",...]
+     */
+    public List<AssetPairData> GetTradableAssetPairs();
+    
+    /**
+     * Execute a market order right now.
+     */
+    public Task<MarketTradeResult> TradeMarketAsync(string fromAsset, string toAsset, decimal qty, JObject config, CancellationToken cancellationToken);
+    
+    /**
+     * Get the details about a previous market trade.
+     */
+    public Task<MarketTradeResult> GetTradeInfoAsync(string tradeId, JObject config, CancellationToken cancellationToken);
+
+    public Task<AssetQuoteResult> GetQuoteForAssetAsync(string fromAsset, string toAsset, JObject config, CancellationToken cancellationToken);
+}
+
+
+

BTCPayServer.Abstractions/Custodians/ICanWithdraw.cs

@@ -0,0 +1,15 @@
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Abstractions.Custodians.Client;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Abstractions.Custodians;
+
+public interface ICanWithdraw
+{
+    public Task<WithdrawResult> WithdrawAsync(string paymentMethod, decimal amount, JObject config, CancellationToken cancellationToken);
+
+    public Task<WithdrawResult> GetWithdrawalInfoAsync(string paymentMethod, string withdrawalId, JObject config, CancellationToken cancellationToken);
+
+    public string[] GetWithdrawablePaymentMethods();
+}

BTCPayServer.Abstractions/Custodians/ICustodian.cs

@@ -0,0 +1,26 @@
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Abstractions.Custodians;
+
+public interface ICustodian
+{
+    /**
+     * Get the unique code that identifies this custodian.
+     */
+    string Code { get; }
+    
+    string Name { get; }
+
+    /**
+     * Get a list of assets and their qty in custody.
+     */
+    Task<Dictionary<string, decimal>> GetAssetBalancesAsync(JObject config, CancellationToken cancellationToken);
+
+    public Task<Form.Form> GetConfigForm(JObject config, string locale,
+        CancellationToken cancellationToken = default);
+
+}

BTCPayServer.Abstractions/Extensions/CustodianExtensions.cs

@@ -0,0 +1,14 @@
+#nullable enable
+using System.Collections.Generic;
+using System.Linq;
+using BTCPayServer.Abstractions.Custodians;
+
+namespace BTCPayServer.Abstractions.Extensions;
+
+public static class CustodianExtensions
+{
+    public static ICustodian? GetCustodianByCode(this IEnumerable<ICustodian> custodians, string code)
+    {
+        return custodians.FirstOrDefault(custodian => custodian.Code == code);
+    }
+}

BTCPayServer.Abstractions/Extensions/Extensions.cs

@@ -1,20 +0,0 @@
-using System.Text.Json;
-using BTCPayServer.Abstractions.Models;
-using Microsoft.AspNetCore.Mvc.ViewFeatures;
-
-namespace BTCPayServer.Abstractions.Extensions
-{
-    public static class SetStatusMessageModelExtensions
-    {
-        public static void SetStatusMessageModel(this ITempDataDictionary tempData, StatusMessageModel statusMessage)
-        {
-            if (statusMessage == null)
-            {
-                tempData.Remove("StatusMessageModel");
-                return;
-            }
-
-            tempData["StatusMessageModel"] = JsonSerializer.Serialize(statusMessage, new JsonSerializerOptions());
-        }
-    }
-}

BTCPayServer.Abstractions/Extensions/GreenfieldExtensions.cs

@@ -0,0 +1,43 @@
+using System.Collections.Generic;
+using BTCPayServer.Client.Models;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.ModelBinding;
+
+namespace BTCPayServer.Abstractions.Extensions;
+
+public static class GreenfieldExtensions
+{
+    public static IActionResult CreateValidationError(this ControllerBase controller, ModelStateDictionary modelState)
+    {
+        return controller.UnprocessableEntity(modelState.ToGreenfieldValidationError());
+    }
+
+    public static List<GreenfieldValidationError> ToGreenfieldValidationError(this ModelStateDictionary modelState)
+    {
+        List<GreenfieldValidationError> errors = new List<GreenfieldValidationError>();
+        foreach (var error in modelState)
+        {
+            foreach (var errorMessage in error.Value.Errors)
+            {
+                errors.Add(new GreenfieldValidationError(error.Key, errorMessage.ErrorMessage));
+            }
+        }
+
+        return errors;
+    }
+
+    public static IActionResult CreateAPIError(this ControllerBase controller, string errorCode, string errorMessage)
+    {
+        return controller.BadRequest(new GreenfieldAPIError(errorCode, errorMessage));
+    }
+        
+    public static IActionResult CreateAPIError(this ControllerBase controller, int httpCode, string errorCode, string errorMessage)
+    {
+        return controller.StatusCode(httpCode, new GreenfieldAPIError(errorCode, errorMessage));
+    }
+        
+    public static IActionResult CreateAPIPermissionError(this ControllerBase controller, string missingPermission, string message = null)
+    {
+        return controller.StatusCode(403, new GreenfieldPermissionAPIError(missingPermission, message));
+    }
+}

BTCPayServer.Abstractions/Extensions/HttpRequestExtensions.cs

@@ -0,0 +1,120 @@
+using System;
+using Microsoft.AspNetCore.Http;
+
+namespace BTCPayServer.Abstractions.Extensions;
+
+public static class HttpRequestExtensions
+{
+    public static bool IsOnion(this HttpRequest request)
+    {
+        if (request?.Host.Host == null)
+            return false;
+        return request.Host.Host.EndsWith(".onion", StringComparison.OrdinalIgnoreCase);
+    }
+    
+    public static string GetAbsoluteRoot(this HttpRequest request)
+    {
+        return string.Concat(
+            request.Scheme,
+            "://",
+            request.Host.ToUriComponent(),
+            request.PathBase.ToUriComponent());
+    }
+
+    public static Uri GetAbsoluteRootUri(this HttpRequest request)
+    {
+        return new Uri(request.GetAbsoluteRoot());
+    }
+
+    public static string GetCurrentUrl(this HttpRequest request)
+    {
+        return string.Concat(
+            request.Scheme,
+            "://",
+            request.Host.ToUriComponent(),
+            request.PathBase.ToUriComponent(),
+            request.Path.ToUriComponent());
+    }
+
+    public static string GetCurrentPath(this HttpRequest request)
+    {
+        return string.Concat(
+            request.PathBase.ToUriComponent(),
+            request.Path.ToUriComponent());
+    }
+
+    public static string GetCurrentPathWithQueryString(this HttpRequest request)
+    {
+        return request.PathBase + request.Path + request.QueryString;
+    }
+
+    /// <summary>
+    /// If 'toto' and RootPath is 'rootpath' returns '/rootpath/toto'
+    /// If 'toto' and RootPath is empty returns '/toto'
+    /// </summary>
+    /// <param name="request"></param>
+    /// <param name="path"></param>
+    /// <returns></returns>
+    public static string GetRelativePath(this HttpRequest request, string path)
+    {
+        if (path.Length > 0 && path[0] != '/')
+            path = $"/{path}";
+        return string.Concat(
+            request.PathBase.ToUriComponent(),
+            path);
+    }
+
+    /// <summary>
+    /// If 'https://example.com/toto' returns 'https://example.com/toto'
+    /// If 'toto' and RootPath is 'rootpath' returns '/rootpath/toto'
+    /// If 'toto' and RootPath is empty returns '/toto'
+    /// </summary>
+    /// <param name="request"></param>
+    /// <param name="path"></param>
+    /// <returns></returns>
+    public static string GetRelativePathOrAbsolute(this HttpRequest request, string path)
+    {
+        if (!Uri.TryCreate(path, UriKind.RelativeOrAbsolute, out var uri) ||
+            uri.IsAbsoluteUri)
+            return path;
+
+        if (path.Length > 0 && path[0] != '/')
+            path = $"/{path}";
+        return string.Concat(
+            request.PathBase.ToUriComponent(),
+            path);
+    }
+
+    public static string GetAbsoluteUri(this HttpRequest request, string redirectUrl)
+    {
+        bool isRelative =
+            (redirectUrl.Length > 0 && redirectUrl[0] == '/')
+            || !new Uri(redirectUrl, UriKind.RelativeOrAbsolute).IsAbsoluteUri;
+        return isRelative ? request.GetAbsoluteRoot() + redirectUrl : redirectUrl;
+    }
+
+    /// <summary>
+    /// Will return an absolute URL. 
+    /// If `relativeOrAsbolute` is absolute, returns it.
+    /// If `relativeOrAsbolute` is relative, send absolute url based on the HOST of this request (without PathBase)
+    /// </summary>
+    /// <param name="request"></param>
+    /// <param name="relativeOrAbsolte"></param>
+    /// <returns></returns>
+    public static Uri GetAbsoluteUriNoPathBase(this HttpRequest request, Uri relativeOrAbsolute = null)
+    {
+        if (relativeOrAbsolute == null)
+        {
+            return new Uri(string.Concat(
+                request.Scheme,
+                "://",
+                request.Host.ToUriComponent()), UriKind.Absolute);
+        }
+        if (relativeOrAbsolute.IsAbsoluteUri)
+            return relativeOrAbsolute;
+        return new Uri(string.Concat(
+            request.Scheme,
+            "://",
+            request.Host.ToUriComponent()) + relativeOrAbsolute.ToString().WithStartingSlash(), UriKind.Absolute);
+    }
+}

BTCPayServer.Abstractions/Extensions/ITempDataDictionaryExtensions.cs

@@ -0,0 +1,59 @@
+using System.Text.Json;
+using BTCPayServer.Abstractions.Constants;
+using BTCPayServer.Abstractions.Models;
+using Microsoft.AspNetCore.Mvc.ViewFeatures;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Abstractions.Extensions;
+
+public static class SetStatusMessageModelExtensions
+{
+    public static void SetStatusMessageModel(this ITempDataDictionary tempData, StatusMessageModel statusMessage)
+    {
+        if (statusMessage == null)
+        {
+            tempData.Remove("StatusMessageModel");
+            return;
+        }
+
+        tempData["StatusMessageModel"] = JsonSerializer.Serialize(statusMessage, new JsonSerializerOptions());
+    }
+
+    public static StatusMessageModel GetStatusMessageModel(this ITempDataDictionary tempData)
+    {
+        tempData.TryGetValue(WellKnownTempData.SuccessMessage, out var successMessage);
+        tempData.TryGetValue(WellKnownTempData.ErrorMessage, out var errorMessage);
+        tempData.TryGetValue("StatusMessageModel", out var model);
+        if (successMessage != null || errorMessage != null)
+        {
+            var parsedModel = new StatusMessageModel();
+            parsedModel.Message = (string)successMessage ?? (string)errorMessage;
+            if (successMessage != null)
+            {
+                parsedModel.Severity = StatusMessageModel.StatusSeverity.Success;
+            }
+            else
+            {
+                parsedModel.Severity = StatusMessageModel.StatusSeverity.Error;
+            }
+            return parsedModel;
+        }
+        else if (model != null && model is string str)
+        {
+            return JObject.Parse(str).ToObject<StatusMessageModel>();
+        }
+        return null;
+    }
+
+    public static bool HasStatusMessage(this ITempDataDictionary tempData)
+    {
+        return (tempData.Peek(WellKnownTempData.SuccessMessage) ??
+                tempData.Peek(WellKnownTempData.ErrorMessage) ??
+                tempData.Peek("StatusMessageModel")) != null;
+    }
+
+    public static bool HasErrorMessage(this ITempDataDictionary tempData)
+    {
+        return GetStatusMessageModel(tempData)?.Severity == StatusMessageModel.StatusSeverity.Error;
+    }
+}

BTCPayServer.Abstractions/Extensions/StringExtensions.cs

@@ -0,0 +1,45 @@
+using System;
+using System.IO;
+using System.Linq;
+
+namespace BTCPayServer.Abstractions.Extensions;
+
+public static class StringExtensions
+{
+
+    public static bool IsValidFileName(this string fileName)
+    {
+        return !fileName.ToCharArray().Any(c => Path.GetInvalidFileNameChars().Contains(c)
+                                                || c == Path.AltDirectorySeparatorChar
+                                                || c == Path.DirectorySeparatorChar
+                                                || c == Path.PathSeparator
+                                                || c == '\\');
+    }
+
+    public static string Truncate(this string value, int maxLength)
+    {
+        if (string.IsNullOrEmpty(value))
+            return value;
+        return value.Length <= maxLength ? value : value.Substring(0, maxLength);
+    }
+
+    public static string WithTrailingSlash(this string str)
+    {
+        if (str.EndsWith("/", StringComparison.InvariantCulture))
+            return str;
+        return str + "/";
+    }
+    public static string WithStartingSlash(this string str)
+    {
+        if (str.StartsWith("/", StringComparison.InvariantCulture))
+            return str;
+        return $"/{str}";
+    }
+    public static string WithoutEndingSlash(this string str)
+    {
+        if (str.EndsWith("/", StringComparison.InvariantCulture))
+            return str.Substring(0, str.Length - 1);
+        return str;
+    }
+    
+}

BTCPayServer.Abstractions/Extensions/ViewsRazor.cs

@@ -1,5 +1,7 @@
 using System;
+using System.Collections.Generic;
 using System.Globalization;
+using System.Linq;
 using Microsoft.AspNetCore.Html;
 using Microsoft.AspNetCore.Mvc.ViewFeatures;
 
@@ -10,6 +12,13 @@ namespace BTCPayServer.Abstractions.Extensions
         private const string ACTIVE_CATEGORY_KEY = "ActiveCategory";
         private const string ACTIVE_PAGE_KEY = "ActivePage";
         private const string ACTIVE_ID_KEY = "ActiveId";
+        private const string ActivePageClass = "active";
+
+        public enum DateDisplayFormat
+        {
+            Localized,
+            Relative
+        }
 
         public static void SetActivePage<T>(this ViewDataDictionary viewData, T activePage, string title = null, string activeId = null)
             where T : IConvertible
@@ -52,7 +61,7 @@ namespace BTCPayServer.Abstractions.Extensions
             var activeCategory = viewData[ACTIVE_CATEGORY_KEY]?.ToString();
             var categoryMatch = category.Equals(activeCategory, StringComparison.InvariantCultureIgnoreCase);
             var idMatch = id == null || activeId == null || id.Equals(activeId);
-            return categoryMatch && idMatch ? "active" : null;
+            return categoryMatch && idMatch ? ActivePageClass : null;
         }
 
         public static string IsActivePage<T>(this ViewDataDictionary viewData, T page, object id = null)
@@ -60,6 +69,14 @@ namespace BTCPayServer.Abstractions.Extensions
         {
             return IsActivePage(viewData, page.ToString(), page.GetType().ToString(), id);
         }
+
+        public static string IsActivePage<T>(this ViewDataDictionary viewData, IEnumerable<T> pages, object id = null)
+            where T : IConvertible
+        {
+            return pages.Any(page => IsActivePage(viewData, page.ToString(), page.GetType().ToString(), id) == ActivePageClass)
+                ? ActivePageClass
+                : null;
+        }
         
         public static string IsActivePage(this ViewDataDictionary viewData, string page, string category, object id = null)
         {
@@ -72,29 +89,32 @@ namespace BTCPayServer.Abstractions.Extensions
             var activeCategory = viewData[ACTIVE_CATEGORY_KEY]?.ToString();
             var categoryAndPageMatch = (category == null || activeCategory.Equals(category, StringComparison.InvariantCultureIgnoreCase)) && page.Equals(activePage, StringComparison.InvariantCultureIgnoreCase);
             var idMatch = id == null || activeId == null || id.Equals(activeId);
-            return categoryAndPageMatch && idMatch ? "active" : null;
+            return categoryAndPageMatch && idMatch ? ActivePageClass : null;
         }
 
-        public static HtmlString ToBrowserDate(this DateTimeOffset date)
+        public static HtmlString ToBrowserDate(this DateTimeOffset date, DateDisplayFormat format = DateDisplayFormat.Localized)
         {
-            var displayDate = date.ToString("o", CultureInfo.InvariantCulture);
-            return new HtmlString($"<span class='localizeDate'>{displayDate}</span>");
+            var relative = date.ToTimeAgo();
+            var initial = format.ToString().ToLower();
+            var dateTime = date.ToString("o", CultureInfo.InvariantCulture);
+            var displayDate = format == DateDisplayFormat.Relative ? relative : date.ToString("g", CultureInfo.InvariantCulture);
+            return new HtmlString($"<time datetime=\"{dateTime}\" data-relative=\"{relative}\" data-initial=\"{initial}\">{displayDate}</time>");
         }
 
-        public static HtmlString ToBrowserDate(this DateTime date)
+        public static HtmlString ToBrowserDate(this DateTime date, DateDisplayFormat format = DateDisplayFormat.Localized)
         {
-            var displayDate = date.ToString("o", CultureInfo.InvariantCulture);
-            return new HtmlString($"<span class='localizeDate'>{displayDate}</span>");
+            var relative = date.ToTimeAgo();
+            var initial = format.ToString().ToLower();
+            var dateTime = date.ToString("o", CultureInfo.InvariantCulture);
+            var displayDate = format == DateDisplayFormat.Relative ? relative : date.ToString("g", CultureInfo.InvariantCulture);
+            return new HtmlString($"<time datetime=\"{dateTime}\" data-relative=\"{relative}\" data-initial=\"{initial}\">{displayDate}</time>");
         }
 
-        public static string ToTimeAgo(this DateTimeOffset date)
-        {
-            var diff = DateTimeOffset.UtcNow - date;
-            var formatted = diff.Seconds > 0
-                ? $"{diff.TimeString()} ago"
-                : $"in {diff.Negate().TimeString()}";
-            return formatted;
-        }
+        public static string ToTimeAgo(this DateTimeOffset date) => (DateTimeOffset.UtcNow - date).ToTimeAgo();
+
+        public static string ToTimeAgo(this DateTime date) => (DateTimeOffset.UtcNow - date).ToTimeAgo();
+
+        public static string ToTimeAgo(this TimeSpan diff) => diff.TotalSeconds > 0 ? $"{diff.TimeString()} ago" : $"in {diff.Negate().TimeString()}";
 
         public static string TimeString(this TimeSpan timeSpan)
         {
@@ -106,16 +126,14 @@ namespace BTCPayServer.Abstractions.Extensions
             {
                 return $"{(int)timeSpan.TotalMinutes} minute{Plural((int)timeSpan.TotalMinutes)}";
             }
-            if (timeSpan.Days < 1)
-            {
-                return $"{(int)timeSpan.TotalHours} hour{Plural((int)timeSpan.TotalHours)}";
-            }
-            return $"{(int)timeSpan.TotalDays} day{Plural((int)timeSpan.TotalDays)}";
+            return timeSpan.Days < 1 
+                ? $"{(int)timeSpan.TotalHours} hour{Plural((int)timeSpan.TotalHours)}"
+                : $"{(int)timeSpan.TotalDays} day{Plural((int)timeSpan.TotalDays)}";
         }
 
-        private static string Plural(int totalDays)
+        private static string Plural(int value)
         {
-            return totalDays > 1 ? "s" : string.Empty;
+            return value == 1 ? string.Empty : "s";
         }
     }
 }

BTCPayServer.Abstractions/Form/AlertMessage.cs

@@ -0,0 +1,37 @@
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+
+namespace BTCPayServer.Abstractions.Form;
+
+public class AlertMessage
+{
+    // Corresponds to the Bootstrap CSS "alert alert-xxx" messages:
+    // Success = green
+    // Warning = orange
+    // Danger = red
+    // Info = blue
+    public enum AlertMessageType
+    {
+        Success,
+        Warning,
+        Danger,
+        Info
+    }
+    
+    [JsonConverter(typeof(StringEnumConverter))]
+    public AlertMessageType Type;
+    
+    // The translated message to be shown to the user
+    public string Message;
+
+    public AlertMessage()
+    {
+        
+    }
+
+    public AlertMessage(AlertMessageType type, string message)
+    {
+        this.Type = type;
+        this.Message = message;
+    }
+}

BTCPayServer.Abstractions/Form/Field.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Abstractions.Form;
+
+public class Field
+{
+    // The name of the HTML5 node. Should be used as the key for the posted data.
+    public string Name;
+
+    // HTML5 compatible type string like "text", "textarea", "email", "password", etc. Each type is a class and may contain more fields (i.e. "select" would have options).
+    public string Type;
+
+    // The value field is what is currently in the DB or what the user entered, but possibly not saved yet due to validation errors.
+    // If this is the first the user sees the form, then value and original value are the same. Value changes as the user starts interacting with the form.
+    public string Value;
+
+    // The field is considered "valid" if there are no validation errors
+    public List<string> ValidationErrors = new List<string>();
+
+    public virtual bool IsValid()
+    {
+        return ValidationErrors.Count == 0 && Fields.All(field => field.IsValid());
+    }
+
+    [JsonExtensionData] public IDictionary<string, JToken> AdditionalData { get; set; }
+    public List<Field> Fields { get; set; } = new();
+    
+   
+}

BTCPayServer.Abstractions/Form/Fieldset.cs

@@ -0,0 +1,12 @@
+namespace BTCPayServer.Abstractions.Form;
+
+public class Fieldset : Field
+{
+    public bool Hidden { get; set; }
+    public string Label { get; set; }
+
+    public Fieldset()
+    {
+        Type = "fieldset";
+    }
+}

BTCPayServer.Abstractions/Form/Form.cs

@@ -0,0 +1,143 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.AspNetCore.Http;
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Abstractions.Form;
+
+public class Form
+{
+    // Messages to be shown at the top of the form indicating user feedback like "Saved successfully" or "Please change X because of Y." or a warning, etc...
+    public List<AlertMessage> TopMessages { get; set; } = new();
+    
+    // Groups of fields in the form
+    public List<Field> Fields { get; set; } = new();
+    
+    // Are all the fields valid in the form?
+    public bool IsValid()
+    {
+        return Fields.All(field => field.IsValid());
+    }
+
+    public Field GetFieldByName(string name)
+    {
+        return GetFieldByName(name, Fields, null);
+    }
+    
+    private static Field GetFieldByName(string name, List<Field> fields, string prefix)
+    {
+        prefix ??= string.Empty;
+        foreach (var field in fields)
+        {
+            var currentPrefix = prefix;
+            if (!string.IsNullOrEmpty(field.Name))
+            {
+                
+                currentPrefix = $"{prefix}{field.Name}";
+                if (currentPrefix.Equals(name, StringComparison.InvariantCultureIgnoreCase))
+                {
+                    return field;
+                }
+
+                currentPrefix += "_";
+            }
+
+            var subFieldResult = GetFieldByName(name, field.Fields, currentPrefix);
+            if (subFieldResult is not null)
+            {
+                return subFieldResult;
+            }
+            
+        }
+        return null;
+    }
+    public List<string> GetAllNames()
+    {
+        return GetAllNames(Fields);
+    }
+
+    private static List<string> GetAllNames(List<Field> fields)
+    {
+        var names = new List<string>();
+        
+        foreach (var field in fields)
+        {
+            string prefix = string.Empty;
+            if (!string.IsNullOrEmpty(field.Name))
+            {
+                names.Add(field.Name);
+                prefix = $"{field.Name}_";
+            }
+
+            if (field.Fields.Any())
+            {
+                names.AddRange(GetAllNames(field.Fields).Select(s => $"{prefix}{s}" ));
+            }
+        }
+
+        return names;
+    }
+
+    public void ApplyValuesFromOtherForm(Form form)
+    {
+        foreach (var fieldset in Fields)
+        {
+            foreach (var field in fieldset.Fields)
+            {
+                field.Value = form
+                    .GetFieldByName(
+                        $"{(string.IsNullOrEmpty(fieldset.Name) ? string.Empty : fieldset.Name + "_")}{field.Name}")
+                    ?.Value;
+            }
+        }
+    }
+    
+    public void ApplyValuesFromForm(IFormCollection form)
+    {
+        var names = GetAllNames();
+        foreach (var name in names)
+        {
+            var field = GetFieldByName(name);
+            if (field is null || !form.TryGetValue(name, out var val))
+            {
+                continue;
+            }
+
+            field.Value = val;
+        }
+    }
+
+    public Dictionary<string, object> GetValues()
+    {
+        return GetValues(Fields);
+    }
+    
+    private static Dictionary<string, object> GetValues(List<Field> fields)
+    {
+        var result = new Dictionary<string, object>();
+        foreach (Field field in fields)
+        {
+            var name = field.Name ?? string.Empty;
+            if (field.Fields.Any())
+            {
+                var values = GetValues(fields);
+                values.Remove(string.Empty, out var keylessValue);
+                
+                result.TryAdd(name, values);
+
+                if (keylessValue is not Dictionary<string, object> dict) continue;
+                foreach (KeyValuePair<string,object> keyValuePair in dict)
+                {
+                    result.TryAdd(keyValuePair.Key, keyValuePair.Value);
+                }
+            }
+            else
+            {
+                result.TryAdd(name, field.Value);
+            }
+        }
+
+        return result;
+    }
+}

BTCPayServer.Abstractions/Form/HtmlInputField.cs

@@ -0,0 +1,27 @@
+namespace BTCPayServer.Abstractions.Form;
+
+public class HtmlInputField : Field
+{
+    // The translated label of the field.
+    public string Label;
+    
+    // The original value is the value that is currently saved in the backend. A "reset" button can be used to revert back to this. Should only be set from the constructor.
+    public string OriginalValue;
+
+    // A useful note shown below the field or via a tooltip / info icon. Should be translated for the user.
+    public string HelpText;
+
+    public bool Required;
+    public HtmlInputField(string label, string name, string value, bool required, string helpText, string type = "text")
+    {
+        Label = label;
+        Name = name;
+        Value = value;
+        OriginalValue = value;
+        Required = required;
+        HelpText = helpText;
+        Type = type;
+    }
+
+    // TODO JSON parsing from string to objects again probably won't work out of the box because of the different field types.
+}

BTCPayServer.Abstractions/Models/ConfirmModel.cs

@@ -1,6 +1,6 @@
 using System;
 
-namespace BTCPayServer.Models
+namespace BTCPayServer.Abstractions.Models
 {
     public class ConfirmModel
     {

BTCPayServer.Abstractions/Security/AuthorizationFilterHandle.cs

@@ -0,0 +1,27 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Http;
+
+namespace BTCPayServer.Security;
+
+public class AuthorizationFilterHandle
+{
+    public AuthorizationHandlerContext Context { get; }
+    public PolicyRequirement Requirement { get; }
+    public HttpContext HttpContext { get; }
+    public bool Success { get; private set;  }
+
+    public AuthorizationFilterHandle(
+        AuthorizationHandlerContext context,
+        PolicyRequirement requirement,
+        HttpContext httpContext)
+    {
+        Context = context;
+        Requirement = requirement;
+        HttpContext = httpContext;
+    }
+
+    public void MarkSuccessful()
+    {
+        Success = true;
+    }
+}

BTCPayServer.Abstractions/Services/Safe.cs

@@ -2,7 +2,7 @@ using Ganss.XSS;
 using Microsoft.AspNetCore.Html;
 using Microsoft.AspNetCore.Mvc.Rendering;
 
-namespace BTCPayServer.Services
+namespace BTCPayServer.Abstractions.Services
 {
     public class Safe
     {

BTCPayServer.Abstractions/TagHelpers/CSPA.cs

@@ -1,7 +1,8 @@
 using System;
 using BTCPayServer.Security;
 using Microsoft.AspNetCore.Razor.TagHelpers;
-namespace BTCPayServer.TagHelpers;
+
+namespace BTCPayServer.Abstractions.TagHelpers;
 
 /// <summary>
 /// Add sha256- to allow inline event handlers in a:href=javascript:

BTCPayServer.Abstractions/TagHelpers/CSPEventTagHelper.cs

@@ -2,8 +2,8 @@ using System.Collections.Generic;
 using System.Linq;
 using BTCPayServer.Security;
 using Microsoft.AspNetCore.Razor.TagHelpers;
-namespace BTCPayServer.TagHelpers;
 
+namespace BTCPayServer.Abstractions.TagHelpers;
 
 /// <summary>
 /// Add 'unsafe-hashes' and sha256- to allow inline event handlers in CSP

BTCPayServer.Abstractions/TagHelpers/CSPInlineScriptTagHelper.cs

@@ -1,8 +1,8 @@
 using BTCPayServer.Security;
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using NBitcoin;
-namespace BTCPayServer.TagHelpers;
 
+namespace BTCPayServer.Abstractions.TagHelpers;
 
 /// <summary>
 /// Add a nonce-* so the inline-script can pass CSP rule when they are rendered server-side

BTCPayServer.Abstractions/TagHelpers/CSPTemplate.cs

@@ -1,7 +1,8 @@
 using System.Threading.Tasks;
 using BTCPayServer.Security;
 using Microsoft.AspNetCore.Razor.TagHelpers;
-namespace BTCPayServer.TagHelpers;
+
+namespace BTCPayServer.Abstractions.TagHelpers;
 
 /// <summary>
 /// Add sha256- to allow inline event handlers in CSP

BTCPayServer.Abstractions/TagHelpers/PermissionTagHelper.cs

@@ -3,8 +3,8 @@ using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using Microsoft.Extensions.Logging;
-namespace BTCPayServer.TagHelpers;
 
+namespace BTCPayServer.Abstractions.TagHelpers;
 
 [HtmlTargetElement(Attributes = nameof(Permission))]
 public class PermissionTagHelper : TagHelper
@@ -26,22 +26,20 @@ public class PermissionTagHelper : TagHelper
     public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
     {
         if (string.IsNullOrEmpty(Permission))
-        {
             return;
-        }
+        if (_httpContextAccessor.HttpContext is null)
+            return;
 
         var key = $"{Permission}_{PermissionResource}";
-        if (!_httpContextAccessor.HttpContext.Items.TryGetValue(key, out var cachedResult))
+        if (!_httpContextAccessor.HttpContext.Items.TryGetValue(key, out var o) ||
+            o is not AuthorizationResult res)
         {
-            var result = await _authorizationService.AuthorizeAsync(_httpContextAccessor.HttpContext.User,
+            res = await _authorizationService.AuthorizeAsync(_httpContextAccessor.HttpContext.User,
                 PermissionResource,
                 Permission);
-
-            cachedResult = result;
-            _httpContextAccessor.HttpContext.Items.Add(key, result);
-
+            _httpContextAccessor.HttpContext.Items.Add(key, res);
         }
-        if (!((AuthorizationResult)cachedResult).Succeeded)
+        if (!res.Succeeded)
         {
             output.SuppressOutput();
         }

BTCPayServer.Abstractions/TagHelpers/SVGUse.cs

@@ -1,11 +1,10 @@
 using System.Text.Encodings.Web;
 using Microsoft.AspNetCore.Mvc.Razor.TagHelpers;
-using Microsoft.AspNetCore.Mvc.Rendering;
 using Microsoft.AspNetCore.Mvc.Routing;
 using Microsoft.AspNetCore.Mvc.ViewFeatures;
 using Microsoft.AspNetCore.Razor.TagHelpers;
 
-namespace BTCPayServer.TagHelpers;
+namespace BTCPayServer.Abstractions.TagHelpers;
 
 // Make sure that <svg><use href=/ are correctly working if rootpath is present
 [HtmlTargetElement("use", Attributes = "href")]

BTCPayServer.Abstractions/TagHelpers/SrvModel.cs

@@ -1,8 +1,9 @@
+using BTCPayServer.Abstractions.Services;
 using BTCPayServer.Security;
-using BTCPayServer.Services;
 using Microsoft.AspNetCore.Razor.TagHelpers;
 using NBitcoin;
-namespace BTCPayServer.TagHelpers;
+
+namespace BTCPayServer.Abstractions.TagHelpers;
 
 [HtmlTargetElement("srv-model")]
 public class SrvModel : TagHelper

BTCPayServer.Client/BTCPayServer.Client.csproj

@@ -14,7 +14,7 @@
         <RepositoryType>git</RepositoryType>
     </PropertyGroup>
   <PropertyGroup>
-    <Version Condition=" '$(Version)' == '' ">1.6.0</Version>
+    <Version Condition=" '$(Version)' == '' ">1.7.0</Version>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
@@ -28,8 +28,8 @@
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
   </ItemGroup>
     <ItemGroup>
-      <PackageReference Include="NBitcoin" Version="6.0.19" />
-      <PackageReference Include="BTCPayServer.Lightning.Common" Version="1.2.8" />
+      <PackageReference Include="BTCPayServer.Lightning.Common" Version="1.3.15" />
+      <PackageReference Include="NBitcoin" Version="7.0.14" />
       <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     </ItemGroup>
   <ItemGroup>

BTCPayServer.Client/BTCPayServerClient.Apps.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Client
+{
+    public partial class BTCPayServerClient
+    {
+
+        public virtual async Task<PointOfSaleAppData> CreatePointOfSaleApp(string storeId,
+            CreatePointOfSaleAppRequest request, CancellationToken token = default)
+        {
+            if (request == null)
+                throw new ArgumentNullException(nameof(request));
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/apps/pos", bodyPayload: request,
+                    method: HttpMethod.Post), token);
+            return await HandleResponse<PointOfSaleAppData>(response);
+        }
+        
+        public virtual async Task<CrowdfundAppData> CreateCrowdfundApp(string storeId,
+            CreateCrowdfundAppRequest request, CancellationToken token = default)
+        {
+            if (request == null)
+                throw new ArgumentNullException(nameof(request));
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/apps/crowdfund", bodyPayload: request,
+                    method: HttpMethod.Post), token);
+            return await HandleResponse<CrowdfundAppData>(response);
+        }
+
+        public virtual async Task<PointOfSaleAppData> UpdatePointOfSaleApp(string appId,
+            CreatePointOfSaleAppRequest request, CancellationToken token = default)
+        {
+            if (request == null)
+                throw new ArgumentNullException(nameof(request));
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/apps/pos/{appId}", bodyPayload: request,
+                    method: HttpMethod.Put), token);
+            return await HandleResponse<PointOfSaleAppData>(response);
+        }
+
+        public virtual async Task<AppDataBase> GetApp(string appId, CancellationToken token = default)
+        {
+            if (appId == null)
+                throw new ArgumentNullException(nameof(appId));
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/apps/{appId}",
+                    method: HttpMethod.Get), token);
+            return await HandleResponse<AppDataBase>(response);
+        }
+
+        public virtual async Task DeleteApp(string appId, CancellationToken token = default)
+        {
+            if (appId == null)
+                throw new ArgumentNullException(nameof(appId));
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/apps/{appId}",
+                    method: HttpMethod.Delete), token);
+            await HandleResponse(response);
+        }
+    }
+}

BTCPayServer.Client/BTCPayServerClient.CustodianAccounts.cs

@@ -0,0 +1,97 @@
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Client
+{
+    public partial class BTCPayServerClient
+    {
+        public virtual async Task<IEnumerable<CustodianAccountData>> GetCustodianAccounts(string storeId, bool includeAssetBalances = false, CancellationToken token = default)
+        {
+            var queryPayload = new Dictionary<string, object>();
+            if (includeAssetBalances)
+            {
+                queryPayload.Add("assetBalances", "true");
+            }
+
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts", queryPayload), token);
+            return await HandleResponse<IEnumerable<CustodianAccountData>>(response);
+        }
+
+        public virtual async Task<CustodianAccountResponse> GetCustodianAccount(string storeId, string accountId, bool includeAssetBalances = false, CancellationToken token = default)
+        {
+            var queryPayload = new Dictionary<string, object>();
+            if (includeAssetBalances)
+            {
+                queryPayload.Add("assetBalances", "true");
+            }
+
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts/{accountId}", queryPayload), token);
+            return await HandleResponse<CustodianAccountResponse>(response);
+        }
+
+        public virtual async Task<CustodianAccountData> CreateCustodianAccount(string storeId, CreateCustodianAccountRequest request, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts", bodyPayload: request, method: HttpMethod.Post), token);
+            return await HandleResponse<CustodianAccountData>(response);
+        }
+
+        public virtual async Task<CustodianAccountData> UpdateCustodianAccount(string storeId, string accountId, CreateCustodianAccountRequest request, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts/{accountId}", bodyPayload: request, method: HttpMethod.Put), token);
+            return await HandleResponse<CustodianAccountData>(response);
+        }
+
+        public virtual async Task DeleteCustodianAccount(string storeId, string accountId, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts/{accountId}", method: HttpMethod.Delete), token);
+            await HandleResponse(response);
+        }
+
+        public virtual async Task<DepositAddressData> GetDepositAddress(string storeId, string accountId, string paymentMethod, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts/{accountId}/addresses/{paymentMethod}"), token);
+            return await HandleResponse<DepositAddressData>(response);
+        }
+
+        public virtual async Task<MarketTradeResponseData> MarketTradeCustodianAccountAsset(string storeId, string accountId, TradeRequestData request, CancellationToken token = default)
+        {
+            
+            //var response = await _httpClient.SendAsync(CreateHttpRequest("api/v1/users", null, request, HttpMethod.Post), token);
+            //return await HandleResponse<ApplicationUserData>(response);
+            var internalRequest = CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts/{accountId}/trades/market", null,
+                    request, HttpMethod.Post);
+            var response = await _httpClient.SendAsync(internalRequest, token);
+            return await HandleResponse<MarketTradeResponseData>(response);
+        }
+
+        public virtual async Task<MarketTradeResponseData> GetTradeInfo(string storeId, string accountId, string tradeId, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts/{accountId}/trades/{tradeId}", method: HttpMethod.Get), token);
+            return await HandleResponse<MarketTradeResponseData>(response);
+        }
+
+        public virtual async Task<TradeQuoteResponseData> GetTradeQuote(string storeId, string accountId, string fromAsset, string toAsset, CancellationToken token = default)
+        {
+            var queryPayload = new Dictionary<string, object>();
+            queryPayload.Add("fromAsset", fromAsset);
+            queryPayload.Add("toAsset", toAsset);
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts/{accountId}/trades/quote", queryPayload), token);
+            return await HandleResponse<TradeQuoteResponseData>(response);
+        }
+        
+        public virtual async Task<WithdrawalResponseData> CreateWithdrawal(string storeId, string accountId,  WithdrawRequestData request, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts/{accountId}/withdrawals", bodyPayload: request, method: HttpMethod.Post), token);
+            return await HandleResponse<WithdrawalResponseData>(response);
+        }
+
+        public virtual async Task<WithdrawalResponseData> GetWithdrawalInfo(string storeId, string accountId, string paymentMethod, string withdrawalId, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/custodian-accounts/{accountId}/withdrawals/{paymentMethod}/{withdrawalId}", method: HttpMethod.Get), token);
+            return await HandleResponse<WithdrawalResponseData>(response);
+        }
+    }
+}

BTCPayServer.Client/BTCPayServerClient.Custodians.cs

@@ -0,0 +1,16 @@
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Client
+{
+    public partial class BTCPayServerClient
+    {
+        public virtual async Task<IEnumerable<CustodianData>> GetCustodians(CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest("api/v1/custodians"), token);
+            return await HandleResponse<IEnumerable<CustodianData>>(response);
+        }
+    }
+}

BTCPayServer.Client/BTCPayServerClient.Lightning.Internal.cs

@@ -17,6 +17,15 @@ namespace BTCPayServer.Client
                     method: HttpMethod.Get), token);
             return await HandleResponse<LightningNodeInformationData>(response);
         }
+        
+        public virtual async Task<LightningNodeBalanceData> GetLightningNodeBalance(string cryptoCode,
+            CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/server/lightning/{cryptoCode}/balance",
+                    method: HttpMethod.Get), token);
+            return await HandleResponse<LightningNodeBalanceData>(response);
+        }
 
         public virtual async Task ConnectToLightningNode(string cryptoCode, ConnectToNodeRequest request,
             CancellationToken token = default)
@@ -54,8 +63,7 @@ namespace BTCPayServer.Client
             return await HandleResponse<string>(response);
         }
 
-
-        public virtual async Task PayLightningInvoice(string cryptoCode, PayLightningInvoiceRequest request,
+        public virtual async Task<LightningPaymentData> PayLightningInvoice(string cryptoCode, PayLightningInvoiceRequest request,
             CancellationToken token = default)
         {
             if (request == null)
@@ -63,7 +71,18 @@ namespace BTCPayServer.Client
             var response = await _httpClient.SendAsync(
                 CreateHttpRequest($"api/v1/server/lightning/{cryptoCode}/invoices/pay", bodyPayload: request,
                     method: HttpMethod.Post), token);
-            await HandleResponse(response);
+            return await HandleResponse<LightningPaymentData>(response);
+        }
+
+        public virtual async Task<LightningPaymentData> GetLightningPayment(string cryptoCode,
+            string paymentHash, CancellationToken token = default)
+        {
+            if (paymentHash == null)
+                throw new ArgumentNullException(nameof(paymentHash));
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/server/lightning/{cryptoCode}/payments/{paymentHash}",
+                    method: HttpMethod.Get), token);
+            return await HandleResponse<LightningPaymentData>(response);
         }
 
         public virtual async Task<LightningInvoiceData> GetLightningInvoice(string cryptoCode,
@@ -76,6 +95,24 @@ namespace BTCPayServer.Client
                     method: HttpMethod.Get), token);
             return await HandleResponse<LightningInvoiceData>(response);
         }
+        
+        public virtual async Task<LightningInvoiceData[]> GetLightningInvoices(string cryptoCode,
+            bool? pendingOnly = null, long? offsetIndex = null, CancellationToken token = default)
+        {
+            var queryPayload = new Dictionary<string, object>();
+            if (pendingOnly is bool v)
+            {
+                queryPayload.Add("pendingOnly", v.ToString());
+            }
+            if (offsetIndex is > 0)
+            {
+                queryPayload.Add("offsetIndex", offsetIndex);
+            }
+
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/server/lightning/{cryptoCode}/invoices", queryPayload), token);
+            return await HandleResponse<LightningInvoiceData[]>(response);
+        }
 
         public virtual async Task<LightningInvoiceData> CreateLightningInvoice(string cryptoCode, CreateLightningInvoiceRequest request,
             CancellationToken token = default)

BTCPayServer.Client/BTCPayServerClient.Lightning.Store.cs

@@ -17,6 +17,15 @@ namespace BTCPayServer.Client
                     method: HttpMethod.Get), token);
             return await HandleResponse<LightningNodeInformationData>(response);
         }
+        
+        public virtual async Task<LightningNodeBalanceData> GetLightningNodeBalance(string storeId, string cryptoCode,
+            CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/lightning/{cryptoCode}/balance",
+                    method: HttpMethod.Get), token);
+            return await HandleResponse<LightningNodeBalanceData>(response);
+        }
 
         public virtual async Task ConnectToLightningNode(string storeId, string cryptoCode, ConnectToNodeRequest request,
             CancellationToken token = default)
@@ -56,7 +65,7 @@ namespace BTCPayServer.Client
             return await HandleResponse<string>(response);
         }
 
-        public virtual async Task PayLightningInvoice(string storeId, string cryptoCode, PayLightningInvoiceRequest request,
+        public virtual async Task<LightningPaymentData> PayLightningInvoice(string storeId, string cryptoCode, PayLightningInvoiceRequest request,
             CancellationToken token = default)
         {
             if (request == null)
@@ -64,7 +73,18 @@ namespace BTCPayServer.Client
             var response = await _httpClient.SendAsync(
                 CreateHttpRequest($"api/v1/stores/{storeId}/lightning/{cryptoCode}/invoices/pay", bodyPayload: request,
                     method: HttpMethod.Post), token);
-            await HandleResponse(response);
+            return await HandleResponse<LightningPaymentData>(response);
+        }
+
+        public virtual async Task<LightningPaymentData> GetLightningPayment(string storeId, string cryptoCode,
+            string paymentHash, CancellationToken token = default)
+        {
+            if (paymentHash == null)
+                throw new ArgumentNullException(nameof(paymentHash));
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/lightning/{cryptoCode}/payments/{paymentHash}",
+                    method: HttpMethod.Get), token);
+            return await HandleResponse<LightningPaymentData>(response);
         }
 
         public virtual async Task<LightningInvoiceData> GetLightningInvoice(string storeId, string cryptoCode,
@@ -77,6 +97,24 @@ namespace BTCPayServer.Client
                     method: HttpMethod.Get), token);
             return await HandleResponse<LightningInvoiceData>(response);
         }
+        
+        public virtual async Task<LightningInvoiceData[]> GetLightningInvoices(string storeId, string cryptoCode,
+            bool? pendingOnly = null, long? offsetIndex = null, CancellationToken token = default)
+        {
+            var queryPayload = new Dictionary<string, object>();
+            if (pendingOnly is bool v)
+            {
+                queryPayload.Add("pendingOnly", v.ToString());
+            }
+            if (offsetIndex is > 0)
+            {
+                queryPayload.Add("offsetIndex", offsetIndex);
+            }
+
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/lightning/{cryptoCode}/invoices", queryPayload), token);
+            return await HandleResponse<LightningInvoiceData[]>(response);
+        }
 
         public virtual async Task<LightningInvoiceData> CreateLightningInvoice(string storeId, string cryptoCode,
             CreateLightningInvoiceRequest request, CancellationToken token = default)

BTCPayServer.Client/BTCPayServerClient.OnChainPaymentMethods.cs

@@ -20,7 +20,7 @@ namespace BTCPayServer.Client
 
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain",
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain",
                         query), token);
             return await HandleResponse<IEnumerable<OnChainPaymentMethodData>>(response);
         }
@@ -30,7 +30,7 @@ namespace BTCPayServer.Client
         {
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}"), token);
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}"), token);
             return await HandleResponse<OnChainPaymentMethodData>(response);
         }
 
@@ -39,7 +39,7 @@ namespace BTCPayServer.Client
         {
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}",
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}",
                         method: HttpMethod.Delete), token);
             await HandleResponse(response);
         }
@@ -49,7 +49,7 @@ namespace BTCPayServer.Client
             CancellationToken token = default)
         {
             var response = await _httpClient.SendAsync(
-                CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}",
+                CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}",
                     bodyPayload: paymentMethod, method: HttpMethod.Put), token);
             return await HandleResponse<OnChainPaymentMethodData>(response);
         }
@@ -61,7 +61,7 @@ namespace BTCPayServer.Client
                 CancellationToken token = default)
         {
             var response = await _httpClient.SendAsync(
-                CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/preview",
+                CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/preview",
                     bodyPayload: paymentMethod,
                     queryPayload: new Dictionary<string, object>() { { "offset", offset }, { "amount", amount } },
                     method: HttpMethod.Post), token);
@@ -73,7 +73,7 @@ namespace BTCPayServer.Client
             CancellationToken token = default)
         {
             var response = await _httpClient.SendAsync(
-                CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/preview",
+                CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/preview",
                     queryPayload: new Dictionary<string, object>() { { "offset", offset }, { "amount", amount } },
                     method: HttpMethod.Get), token);
             return await HandleResponse<OnChainPaymentMethodPreviewResultData>(response);
@@ -84,7 +84,7 @@ namespace BTCPayServer.Client
             CancellationToken token = default)
         {
             var response = await _httpClient.SendAsync(
-                CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/generate",
+                CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/generate",
                     bodyPayload: request,
                     method: HttpMethod.Post), token);
             return await HandleResponse<OnChainPaymentMethodDataWithSensitiveData>(response);

BTCPayServer.Client/BTCPayServerClient.OnChainWallet.Objects.cs

@@ -0,0 +1,82 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+using NBitcoin;
+
+namespace BTCPayServer.Client
+{
+    public partial class BTCPayServerClient
+    {
+        public virtual async Task<OnChainWalletObjectData> GetOnChainWalletObject(string storeId, string cryptoCode, OnChainWalletObjectId objectId, bool? includeNeighbourData = null, CancellationToken token = default)
+        {
+            Dictionary<string, object> parameters = new Dictionary<string, object>();
+            if (includeNeighbourData is bool v)
+                parameters.Add("includeNeighbourData", v);
+            var response =
+            await _httpClient.SendAsync(
+            CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects/{objectId.Type}/{objectId.Id}", parameters, method: HttpMethod.Get), token);
+            try
+            {
+                return await HandleResponse<OnChainWalletObjectData>(response);
+            }
+            catch (GreenfieldAPIException err) when (err.APIError.Code == "wallet-object-not-found")
+            {
+                return null;
+            }
+        }
+        public virtual async Task<OnChainWalletObjectData[]> GetOnChainWalletObjects(string storeId, string cryptoCode, GetWalletObjectsRequest query = null, CancellationToken token = default)
+        {
+            Dictionary<string, object> parameters = new Dictionary<string, object>();
+            if (query?.Type is string s)
+                parameters.Add("type", s);
+            if (query?.Ids is string[] ids)
+                parameters.Add("ids", ids);
+            if (query?.IncludeNeighbourData is bool v)
+                parameters.Add("includeNeighbourData", v);
+            var response =
+                await _httpClient.SendAsync(
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects", parameters, method:HttpMethod.Get), token);
+            return await HandleResponse<OnChainWalletObjectData[]>(response);
+        }
+        public virtual async Task RemoveOnChainWalletObject(string storeId, string cryptoCode, OnChainWalletObjectId objectId,
+            CancellationToken token = default)
+        {
+            var response =
+                await _httpClient.SendAsync(
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects/{objectId.Type}/{objectId.Id}", method:HttpMethod.Delete), token);
+            await HandleResponse(response);
+        }
+        public virtual async Task<OnChainWalletObjectData> AddOrUpdateOnChainWalletObject(string storeId, string cryptoCode, AddOnChainWalletObjectRequest request,
+            CancellationToken token = default)
+        {
+            var response =
+                await _httpClient.SendAsync(
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects", method:HttpMethod.Post, bodyPayload: request), token);
+            return await HandleResponse<OnChainWalletObjectData>(response);
+        }
+        public virtual async Task AddOrUpdateOnChainWalletLink(string storeId, string cryptoCode,
+            OnChainWalletObjectId objectId,
+            AddOnChainWalletObjectLinkRequest request = null,
+            CancellationToken token = default)
+        {
+            var response =
+                await _httpClient.SendAsync(
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects/{objectId.Type}/{objectId.Id}/links", method:HttpMethod.Post, bodyPayload: request), token);
+            await HandleResponse(response);
+        }
+        public virtual async Task RemoveOnChainWalletLinks(string storeId, string cryptoCode,
+            OnChainWalletObjectId objectId,
+            OnChainWalletObjectId link,
+            CancellationToken token = default)
+        {
+            var response =
+                await _httpClient.SendAsync(
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/objects/{objectId.Type}/{objectId.Id}/links/{link.Type}/{link.Id}", method:HttpMethod.Delete), token);
+            await HandleResponse(response);
+        }
+    }
+}

BTCPayServer.Client/BTCPayServerClient.OnChainWallet.cs

@@ -16,7 +16,7 @@ namespace BTCPayServer.Client
         {
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/wallet"), token);
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet"), token);
             return await HandleResponse<OnChainWalletOverviewData>(response);
         }
         public virtual async Task<OnChainWalletFeeRateData> GetOnChainFeeRate(string storeId, string cryptoCode, int? blockTarget = null,
@@ -29,7 +29,7 @@ namespace BTCPayServer.Client
             }
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/wallet/feeRate", queryParams), token);
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/feeRate", queryParams), token);
             return await HandleResponse<OnChainWalletFeeRateData>(response);
         }
 
@@ -38,7 +38,7 @@ namespace BTCPayServer.Client
         {
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/wallet/address", new Dictionary<string, object>()
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/address", new Dictionary<string, object>()
                     {
                         {"forceGenerate", forceGenerate}
                     }), token);
@@ -50,12 +50,12 @@ namespace BTCPayServer.Client
         {
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/wallet/address", method: HttpMethod.Delete), token);
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/address", method: HttpMethod.Delete), token);
             await HandleResponse(response);
         }
 
         public virtual async Task<IEnumerable<OnChainWalletTransactionData>> ShowOnChainWalletTransactions(
-            string storeId, string cryptoCode, TransactionStatus[] statusFilter = null,
+            string storeId, string cryptoCode, TransactionStatus[] statusFilter = null, string labelFilter = null,
             CancellationToken token = default)
         {
             var query = new Dictionary<string, object>();
@@ -63,9 +63,12 @@ namespace BTCPayServer.Client
             {
                 query.Add(nameof(statusFilter), statusFilter);
             }
+            if (labelFilter != null) {
+                query.Add(nameof(labelFilter), labelFilter);
+            }
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/wallet/transactions", query), token);
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/transactions", query), token);
             return await HandleResponse<IEnumerable<OnChainWalletTransactionData>>(response);
         }
 
@@ -75,7 +78,21 @@ namespace BTCPayServer.Client
         {
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/wallet/transactions/{transactionId}"), token);
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/transactions/{transactionId}"), token);
+            return await HandleResponse<OnChainWalletTransactionData>(response);
+        }
+
+        public virtual async Task<OnChainWalletTransactionData> PatchOnChainWalletTransaction(
+            string storeId, string cryptoCode, string transactionId,
+            PatchOnChainTransactionRequest request,
+            bool force = false, CancellationToken token = default)
+        {
+            var response =
+                await _httpClient.SendAsync(
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/transactions/{transactionId}", queryPayload: new Dictionary<string, object>()
+                    {
+                        {"force", force}
+                    }, bodyPayload: request, HttpMethod.Patch), token);
             return await HandleResponse<OnChainWalletTransactionData>(response);
         }
 
@@ -85,7 +102,7 @@ namespace BTCPayServer.Client
         {
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/wallet/utxos"), token);
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/utxos"), token);
             return await HandleResponse<IEnumerable<OnChainWalletUTXOData>>(response);
         }
 
@@ -100,7 +117,7 @@ namespace BTCPayServer.Client
             }
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/wallet/transactions", null, request, HttpMethod.Post), token);
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/transactions", null, request, HttpMethod.Post), token);
             return await HandleResponse<OnChainWalletTransactionData>(response);
         }
 
@@ -115,7 +132,7 @@ namespace BTCPayServer.Client
             }
             var response =
                 await _httpClient.SendAsync(
-                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/Onchain/{cryptoCode}/wallet/transactions", null, request, HttpMethod.Post), token);
+                    CreateHttpRequest($"api/v1/stores/{storeId}/payment-methods/onchain/{cryptoCode}/wallet/transactions", null, request, HttpMethod.Post), token);
             return Transaction.Parse(await HandleResponse<string>(response), network);
         }
     }

BTCPayServer.Client/BTCPayServerClient.PaymentRequests.cs

@@ -37,6 +37,20 @@ namespace BTCPayServer.Client
             await HandleResponse(response);
         }
 
+        public virtual async Task<Client.Models.InvoiceData> PayPaymentRequest(string storeId, string paymentRequestId, PayPaymentRequestRequest request, CancellationToken token = default)
+        {
+            if (request == null)
+                throw new ArgumentNullException(nameof(request));
+            if (storeId is null)
+                throw new ArgumentNullException(nameof(storeId));
+            if (paymentRequestId is null)
+                throw new ArgumentNullException(nameof(paymentRequestId));
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/payment-requests/{paymentRequestId}/pay", bodyPayload: request,
+                    method: HttpMethod.Post), token);
+            return await HandleResponse<Client.Models.InvoiceData>(response);
+        }
+
         public virtual async Task<PaymentRequestData> CreatePaymentRequest(string storeId,
             CreatePaymentRequestRequest request, CancellationToken token = default)
         {

BTCPayServer.Client/BTCPayServerClient.PayoutProcessors.cs

@@ -0,0 +1,18 @@
+#nullable enable
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Client
+{
+    public partial class BTCPayServerClient
+    {
+        public virtual async Task<IEnumerable<PayoutProcessorData>> GetPayoutProcessors(
+            CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest("api/v1/payout-processors"), token);
+            return await HandleResponse<IEnumerable<PayoutProcessorData>>(response);
+        }
+    }
+}

BTCPayServer.Client/BTCPayServerClient.PullPayments.cs

@@ -41,12 +41,33 @@ namespace BTCPayServer.Client
             var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/pull-payments/{HttpUtility.UrlEncode(pullPaymentId)}/payouts", queryPayload: query, method: HttpMethod.Get), cancellationToken);
             return await HandleResponse<PayoutData[]>(response);
         }
+        public virtual async Task<PayoutData[]> GetStorePayouts(string storeId, bool includeCancelled = false, CancellationToken cancellationToken = default)
+        {
+            Dictionary<string, object> query = new Dictionary<string, object>();
+            query.Add("includeCancelled", includeCancelled);
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/payouts", queryPayload: query, method: HttpMethod.Get), cancellationToken);
+            return await HandleResponse<PayoutData[]>(response);
+        }
         public virtual async Task<PayoutData> CreatePayout(string pullPaymentId, CreatePayoutRequest payoutRequest, CancellationToken cancellationToken = default)
         {
             var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/pull-payments/{HttpUtility.UrlEncode(pullPaymentId)}/payouts", bodyPayload: payoutRequest, method: HttpMethod.Post), cancellationToken);
             return await HandleResponse<PayoutData>(response);
+        } 
+        public virtual async Task<PayoutData> GetPullPaymentPayout(string pullPaymentId, string payoutId, CancellationToken cancellationToken = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/pull-payments/{HttpUtility.UrlEncode(pullPaymentId)}/payouts/{payoutId}", method: HttpMethod.Get), cancellationToken);
+            return await HandleResponse<PayoutData>(response);
+        } 
+        public virtual async Task<PayoutData> GetStorePayout(string storeId, string payoutId, CancellationToken cancellationToken = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/payouts/{payoutId}", method: HttpMethod.Get), cancellationToken);
+            return await HandleResponse<PayoutData>(response);
+        } 
+        public virtual async Task<PayoutData> CreatePayout(string storeId, CreatePayoutThroughStoreRequest payoutRequest, CancellationToken cancellationToken = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/payouts", bodyPayload: payoutRequest, method: HttpMethod.Post), cancellationToken);
+            return await HandleResponse<PayoutData>(response);
         }
-
         public virtual async Task CancelPayout(string storeId, string payoutId, CancellationToken cancellationToken = default)
         {
             var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{HttpUtility.UrlEncode(storeId)}/payouts/{HttpUtility.UrlEncode(payoutId)}", method: HttpMethod.Delete), cancellationToken);
@@ -58,7 +79,7 @@ namespace BTCPayServer.Client
             return await HandleResponse<PayoutData>(response);
         }
 
-        public async Task MarkPayoutPaid(string storeId, string payoutId,
+        public virtual async Task MarkPayoutPaid(string storeId, string payoutId,
             CancellationToken cancellationToken = default)
         {
             var response = await _httpClient.SendAsync(
@@ -67,5 +88,14 @@ namespace BTCPayServer.Client
                     method: HttpMethod.Post), cancellationToken);
             await HandleResponse(response);
         }
+        public virtual async Task MarkPayout(string storeId, string payoutId, MarkPayoutRequest request,
+            CancellationToken cancellationToken = default)
+        {
+            var response = await _httpClient.SendAsync(
+                CreateHttpRequest(
+                    $"api/v1/stores/{HttpUtility.UrlEncode(storeId)}/payouts/{HttpUtility.UrlEncode(payoutId)}/mark",
+                    method: HttpMethod.Post, bodyPayload: request), cancellationToken);
+            await HandleResponse(response);
+        }
     }
 }

BTCPayServer.Client/BTCPayServerClient.StoreEmail.cs

@@ -0,0 +1,37 @@
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Client
+{
+    public partial class BTCPayServerClient
+    {
+        public virtual async Task<EmailSettingsData> GetStoreEmailSettings(string storeId,
+            CancellationToken token = default)
+        {
+            using var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/email", method: HttpMethod.Get),
+                token);
+            return await HandleResponse<EmailSettingsData>(response);
+        }
+
+        public virtual async Task<EmailSettingsData> UpdateStoreEmailSettings(string storeId, EmailSettingsData request,
+            CancellationToken token = default)
+        {
+            using var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/email", bodyPayload: request, method: HttpMethod.Put),
+                token);
+            return await HandleResponse<EmailSettingsData>(response);
+        }
+
+        public virtual async Task SendEmail(string storeId, SendEmailRequest request,
+            CancellationToken token = default)
+        {
+            using var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/email/send", bodyPayload: request, method: HttpMethod.Post),
+                token);
+            await HandleResponse(response);
+        }
+    }
+}

BTCPayServer.Client/BTCPayServerClient.StorePayoutProcessors.cs

@@ -0,0 +1,48 @@
+#nullable enable
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Client
+{
+    public partial class BTCPayServerClient
+    {
+        public virtual async Task<IEnumerable<PayoutProcessorData>> GetPayoutProcessors(string storeId, 
+            CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/payout-processors"), token);
+            return await HandleResponse<IEnumerable<PayoutProcessorData>>(response);
+        }
+        public virtual async Task RemovePayoutProcessor(string storeId, string processor, string paymentMethod, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/payout-processors/{processor}/{paymentMethod}", null, HttpMethod.Delete), token);
+            await HandleResponse(response);
+        }
+        
+        public virtual async Task<IEnumerable<LightningAutomatedPayoutSettings>> GetStoreLightningAutomatedPayoutProcessors(string storeId, string? paymentMethod = null,
+            CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/payout-processors/LightningAutomatedPayoutSenderFactory{(paymentMethod is null? string.Empty: $"/{paymentMethod}")}"), token);
+            return await HandleResponse<IEnumerable<LightningAutomatedPayoutSettings>>(response);
+        }
+        public virtual async Task<LightningAutomatedPayoutSettings> UpdateStoreLightningAutomatedPayoutProcessors(string storeId, string paymentMethod,LightningAutomatedPayoutSettings request, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/payout-processors/LightningAutomatedPayoutSenderFactory/{paymentMethod}",null, request, HttpMethod.Put ), token);
+            return await HandleResponse<LightningAutomatedPayoutSettings>(response);
+        }
+        public virtual async Task<OnChainAutomatedPayoutSettings> UpdateStoreOnChainAutomatedPayoutProcessors(string storeId, string paymentMethod,OnChainAutomatedPayoutSettings request, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/payout-processors/OnChainAutomatedPayoutSenderFactory/{paymentMethod}",null, request, HttpMethod.Put ), token);
+            return await HandleResponse<OnChainAutomatedPayoutSettings>(response);
+        }
+        
+        public virtual async Task<IEnumerable<OnChainAutomatedPayoutSettings>> GetStoreOnChainAutomatedPayoutProcessors(string storeId, string? paymentMethod = null,
+            CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/payout-processors/OnChainAutomatedPayoutSenderFactory{(paymentMethod is null? string.Empty: $"/{paymentMethod}")}"), token);
+            return await HandleResponse<IEnumerable<OnChainAutomatedPayoutSettings>>(response);
+        }
+    }
+}

BTCPayServer.Client/BTCPayServerClient.StoreRatesConfiguration.cs

@@ -0,0 +1,53 @@
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Client
+{
+    public partial class BTCPayServerClient
+    {
+        public virtual async Task<StoreRateConfiguration> GetStoreRateConfiguration(string storeId,
+            CancellationToken token = default)
+        {
+            using var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/rates/configuration", method: HttpMethod.Get),
+                token);
+            return await HandleResponse<StoreRateConfiguration>(response);
+        }
+
+        public virtual async Task<List<RateSource>> GetRateSources(
+            CancellationToken token = default)
+        {
+            using var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"misc/rate-sources", method: HttpMethod.Get),
+                token);
+            return await HandleResponse<List<RateSource>>(response);
+        }
+
+        public virtual async Task<StoreRateConfiguration> UpdateStoreRateConfiguration(string storeId,
+            StoreRateConfiguration request,
+            CancellationToken token = default)
+        {
+            using var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/rates/configuration", bodyPayload: request,
+                    method: HttpMethod.Put),
+                token);
+            return await HandleResponse<StoreRateConfiguration>(response);
+        }
+
+        public virtual async Task<List<StoreRatePreviewResult>> PreviewUpdateStoreRateConfiguration(string storeId,
+            StoreRateConfiguration request,
+            string[] currencyPair,
+            CancellationToken token = default)
+        {
+            using var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/rates/configuration/preview", bodyPayload: request,
+                    queryPayload: new Dictionary<string, object>() {{"currencyPair", currencyPair}},
+                    method: HttpMethod.Post),
+                token);
+            return await HandleResponse<List<StoreRatePreviewResult>>(response);
+        }
+    }
+}

BTCPayServer.Client/BTCPayServerClient.StoreUsers.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using BTCPayServer.Client.Models;
+
+namespace BTCPayServer.Client
+{
+    public partial class BTCPayServerClient
+    {
+        public virtual async Task<IEnumerable<StoreUserData>> GetStoreUsers(string storeId,
+            CancellationToken token = default)
+        {
+            using var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/stores/{storeId}/users"), token);
+            return await HandleResponse<IEnumerable<StoreUserData>>(response);
+        }
+
+        public virtual async Task RemoveStoreUser(string storeId, string userId, CancellationToken token = default)
+        {
+            using var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/users/{userId}", method: HttpMethod.Delete), token);
+            await HandleResponse(response);
+        }
+
+        public virtual async Task AddStoreUser(string storeId, StoreUserData request,
+            CancellationToken token = default)
+        {
+            if (request == null)
+                throw new ArgumentNullException(nameof(request));
+            using var response = await _httpClient.SendAsync(
+                CreateHttpRequest($"api/v1/stores/{storeId}/users", bodyPayload: request, method: HttpMethod.Post),
+                token);
+            await HandleResponse(response);
+        }
+    }
+}

BTCPayServer.Client/BTCPayServerClient.Users.cs

@@ -27,6 +27,25 @@ namespace BTCPayServer.Client
             await HandleResponse(response);
         }
 
+        public virtual async Task<ApplicationUserData> GetUserByIdOrEmail(string idOrEmail, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/users/{idOrEmail}", null, HttpMethod.Get), token);
+            return await HandleResponse<ApplicationUserData>(response);
+        }
+
+        public virtual async Task LockUser(string idOrEmail, bool locked, CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/users/{idOrEmail}/lock", null,
+                new LockUserRequest() {Locked = locked}, HttpMethod.Post), token);
+            await HandleResponse(response);
+        }
+
+        public virtual async Task<ApplicationUserData[]> GetUsers( CancellationToken token = default)
+        {
+            var response = await _httpClient.SendAsync(CreateHttpRequest($"api/v1/users/", null, HttpMethod.Get), token);
+            return await HandleResponse<ApplicationUserData[]>(response);
+        }
+
         public virtual async Task DeleteCurrentUser(CancellationToken token = default)
         {
             await DeleteUser("me", token);

BTCPayServer.Client/Models/AddCustomerEmailRequest.cs

@@ -1,7 +0,0 @@
-namespace BTCPayServer.Client.Models
-{
-    public class AddCustomerEmailRequest
-    {
-        public string Email { get; set; }
-    }
-}

BTCPayServer.Client/Models/ApplicationUserData.cs

@@ -35,5 +35,7 @@ namespace BTCPayServer.Client.Models
         /// </summary>
         [JsonConverter(typeof(NBitcoin.JsonConverters.DateTimeToUnixTimeConverter))]
         public DateTimeOffset? Created { get; set; }
+
+        public bool Disabled { get; set; }
     }
 }

BTCPayServer.Client/Models/AssetPairData.cs

@@ -0,0 +1,33 @@
+using Newtonsoft.Json;
+
+namespace BTCPayServer.Client.Models;
+
+[JsonObject(MemberSerialization.OptIn)]
+public class AssetPairData
+{
+    public AssetPairData()
+    {
+    }
+    
+    public AssetPairData(string assetBought, string assetSold, decimal minimumTradeQty)
+    {
+        AssetBought = assetBought;
+        AssetSold = assetSold;
+        MinimumTradeQty = minimumTradeQty;
+    }
+
+    [JsonProperty]
+    public string AssetBought { set; get; }
+
+    [JsonProperty]
+    public string AssetSold { set; get; }
+
+    [JsonProperty]
+    public decimal MinimumTradeQty { set; get; }
+
+    
+    public override string ToString()
+    {
+        return AssetBought + "/" + AssetSold;
+    }
+}

BTCPayServer.Client/Models/CreateAppRequest.cs

@@ -0,0 +1,84 @@
+using System;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+
+namespace BTCPayServer.Client.Models
+{
+    public enum PosViewType
+    {
+        Static,
+        Cart,
+        Light,
+        Print
+    }
+
+    public class CreateAppRequest
+    {
+        public string AppName { get; set; }
+        public string AppType { get; set; }
+    }
+
+    public class CreatePointOfSaleAppRequest : CreateAppRequest
+    {
+        public string Currency { get; set; } = null;
+        public string Title { get; set; } = null;
+        public string Description { get; set; } = null;
+        public string Template { get; set; } = null;
+        [JsonConverter(typeof(StringEnumConverter))]
+        public PosViewType DefaultView { get; set; }
+        public bool ShowCustomAmount { get; set; } = false;
+        public bool ShowDiscount { get; set; } = true;
+        public bool EnableTips { get; set; } = true;
+        public string CustomAmountPayButtonText { get; set; } = null;
+        public string FixedAmountPayButtonText { get; set; } = null;
+        public string TipText { get; set; } = null;
+        public string CustomCSSLink { get; set; } = null;
+        public string NotificationUrl { get; set; } = null;
+        public string RedirectUrl { get; set; } = null;
+        public bool? RedirectAutomatically { get; set; } = null;
+        public bool? RequiresRefundEmail { get; set; } = null;
+        public string FormId { get; set; } = null;
+        public string EmbeddedCSS { get; set; } = null;
+        public CheckoutType? CheckoutType { get; set; } = null;
+    }
+
+    public enum CrowdfundResetEvery
+    {
+        Never,
+        Hour,
+        Day,
+        Month,
+        Year
+    }
+
+    public class CreateCrowdfundAppRequest : CreateAppRequest
+    {
+        public string Title { get; set; } = null;
+        public bool? Enabled { get; set; } = null;
+        public bool? EnforceTargetAmount { get; set; } = null;
+        [JsonConverter(typeof(NBitcoin.JsonConverters.DateTimeToUnixTimeConverter))]
+        public DateTimeOffset? StartDate { get; set; } = null;
+        public string TargetCurrency { get; set; } = null;
+        public string Description { get; set; } = null;
+        [JsonConverter(typeof(NBitcoin.JsonConverters.DateTimeToUnixTimeConverter))]
+        public DateTimeOffset? EndDate { get; set; } = null;
+        public decimal? TargetAmount { get; set; } = null;
+        public string CustomCSSLink { get; set; } = null;
+        public string MainImageUrl { get; set; } = null;
+        public string EmbeddedCSS { get; set; } = null;
+        public string NotificationUrl { get; set; } = null;
+        public string Tagline { get; set; } = null;
+        public string PerksTemplate { get; set; } = null;
+        public bool? SoundsEnabled { get; set; } = null;
+        public string DisqusShortname { get; set; } = null;
+        public bool? AnimationsEnabled { get; set; } = null;
+        public int? ResetEveryAmount { get; set; } = null;
+        [JsonConverter(typeof(StringEnumConverter))]
+        public CrowdfundResetEvery ResetEvery { get; set; } = CrowdfundResetEvery.Never;
+        public bool? DisplayPerksValue { get; set; } = null;
+        public bool? DisplayPerksRanking { get; set; } = null;
+        public bool? SortPerksByPopularity { get; set; } = null;
+        public string[] Sounds { get; set; } = null;
+        public string[] AnimationColors { get; set; } = null;
+    }
+}

BTCPayServer.Client/Models/CreateCustodianAccountRequest.cs

@@ -0,0 +1,12 @@
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Client.Models
+{
+    public class CreateCustodianAccountRequest
+    {
+        public string CustodianCode { get; set; }
+        public string Name { get; set; }
+
+        public JObject Config { get; set; }
+    }
+}

BTCPayServer.Client/Models/CreateLightningInvoiceRequest.cs

@@ -1,6 +1,6 @@
 using System;
 using BTCPayServer.Lightning;
-using BTCPayServer.Lightning.JsonConverters;
+using NBitcoin;
 using Newtonsoft.Json;
 
 namespace BTCPayServer.Client.Models
@@ -11,15 +11,19 @@ namespace BTCPayServer.Client.Models
         {
 
         }
+        
         public CreateLightningInvoiceRequest(LightMoney amount, string description, TimeSpan expiry)
         {
             Amount = amount;
             Description = description;
             Expiry = expiry;
         }
-        [JsonConverter(typeof(BTCPayServer.Client.JsonConverters.LightMoneyJsonConverter))]
+        
+        [JsonConverter(typeof(JsonConverters.LightMoneyJsonConverter))]
         public LightMoney Amount { get; set; }
         public string Description { get; set; }
+        [JsonConverter(typeof(NBitcoin.JsonConverters.UInt256JsonConverter))]
+        public uint256 DescriptionHash { get; set; }
         [JsonConverter(typeof(JsonConverters.TimeSpanJsonConverter.Seconds))]
         public TimeSpan Expiry { get; set; }
         public bool PrivateRouteHints { get; set; }

BTCPayServer.Client/Models/CreateOnChainTransactionRequest.cs

@@ -26,5 +26,6 @@ namespace BTCPayServer.Client.Models
         public List<CreateOnChainTransactionRequestDestination> Destinations { get; set; }
         [JsonProperty("rbf")]
         public bool? RBF { get; set; } = null;
+        public bool ExcludeUnconfirmed { get; set; } = false;
     }
 }

BTCPayServer.Client/Models/CreatePayoutThroughStoreRequest.cs

@@ -0,0 +1,8 @@
+#nullable enable
+namespace BTCPayServer.Client.Models;
+
+public class CreatePayoutThroughStoreRequest : CreatePayoutRequest
+{
+    public string? PullPaymentId { get; set; }
+    public bool? Approved { get; set; }
+}

BTCPayServer.Client/Models/CreatePullPaymentRequest.cs

@@ -8,6 +8,7 @@ namespace BTCPayServer.Client.Models
     public class CreatePullPaymentRequest
     {
         public string Name { get; set; }
+        public string Description { get; set; }
         [JsonProperty(ItemConverterType = typeof(NumericStringJsonConverter))]
         public decimal Amount { get; set; }
         public string Currency { get; set; }
@@ -21,5 +22,6 @@ namespace BTCPayServer.Client.Models
         [JsonConverter(typeof(NBitcoin.JsonConverters.DateTimeToUnixTimeConverter))]
         public DateTimeOffset? StartsAt { get; set; }
         public string[] PaymentMethods { get; set; }
+        public bool AutoApproveClaims { get; set; }
     }
 }

BTCPayServer.Client/Models/CustodianAccountBaseData.cs

@@ -0,0 +1,16 @@
+using Newtonsoft.Json.Linq;
+
+namespace BTCPayServer.Client.Models
+{
+    public abstract class CustodianAccountBaseData
+    {
+        public string CustodianCode { get; set; }
+        
+        public string Name { get; set; }
+        
+        public string StoreId { get; set; }
+        
+        public JObject Config { get; set; }
+    }
+
+}

BTCPayServer.Client/Models/CustodianAccountData.cs

@@ -0,0 +1,7 @@
+namespace BTCPayServer.Client.Models
+{
+    public class CustodianAccountData : CustodianAccountBaseData
+    {
+        public string Id { get; set; }
+    }
+}

BTCPayServer.Client/Models/CustodianAccountResponse.cs

@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+
+namespace BTCPayServer.Client.Models;
+
+public class CustodianAccountResponse: CustodianAccountData
+{
+    public IDictionary<string, decimal> AssetBalances { get; set; }
+
+    public CustodianAccountResponse()
+    {
+        
+    }
+
+}

BTCPayServer.Client/Models/CustodianData.cs

@@ -0,0 +1,13 @@
+using System.Collections.Generic;
+
+namespace BTCPayServer.Client.Models;
+
+public class CustodianData
+{
+    public string Code { get; set; }
+    public string Name { get; set; }
+    public Dictionary<string, AssetPairData> TradableAssetPairs { get; set; }
+    public string[] WithdrawablePaymentMethods { get; set; }
+    public string[] DepositablePaymentMethods { get; set; }
+    
+}

BTCPayServer.Client/Models/DepositAddressData.cs

@@ -0,0 +1,15 @@
+namespace BTCPayServer.Client.Models;
+
+public class DepositAddressData
+{
+    // /**
+    // * Example: P2PKH, P2SH, P2WPKH, P2TR, BOLT11, ...
+    // */
+    // public string Type { get; set; }
+    
+    /**
+     * Format depends hugely on the type.
+     */
+    public string Address { get; set; }
+    
+}

BTCPayServer.Client/Models/EmailSettingsData.cs

@@ -0,0 +1,29 @@
+namespace BTCPayServer.Client.Models;
+
+public class EmailSettingsData
+{
+    public string Server
+    {
+        get; set;
+    }
+
+    public int? Port
+    {
+        get; set;
+    }
+
+    public string Login
+    {
+        get; set;
+    }
+
+    public string Password
+    {
+        get; set;
+    }
+    public string From
+    {
+        get; set;
+    }
+    public bool DisableCertificateCheck { get; set; }
+}

BTCPayServer.Client/Models/InvoiceData.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using BTCPayServer.Client.JsonConverters;
 using BTCPayServer.JsonConverters;
 using Newtonsoft.Json;
@@ -19,6 +20,48 @@ namespace BTCPayServer.Client.Models
         public string Currency { get; set; }
         public JObject Metadata { get; set; }
         public CheckoutOptions Checkout { get; set; } = new CheckoutOptions();
+        public ReceiptOptions Receipt { get; set; } = new ReceiptOptions();
+
+        public class ReceiptOptions
+        {
+            public bool? Enabled { get; set; }
+            public bool? ShowQR { get; set; }
+            public bool? ShowPayments { get; set; }
+            [JsonExtensionData]
+            public IDictionary<string, JToken> AdditionalData { get; set; }
+
+#nullable enable
+            /// <summary>
+            /// Make sure that the return has all values set by order of priority: invoice/store/default
+            /// </summary>
+            /// <param name="storeLevelOption"></param>
+            /// <param name="invoiceLevelOption"></param>
+            /// <returns></returns>
+            public static ReceiptOptions Merge(ReceiptOptions? storeLevelOption, ReceiptOptions? invoiceLevelOption)
+            {
+                storeLevelOption ??= new ReceiptOptions();
+                invoiceLevelOption ??= new ReceiptOptions();
+                var store = JObject.FromObject(storeLevelOption);
+                var inv = JObject.FromObject(invoiceLevelOption);
+                var result = JObject.FromObject(CreateDefault());
+                var mergeSettings = new JsonMergeSettings() { MergeNullValueHandling = MergeNullValueHandling.Ignore };
+                result.Merge(store, mergeSettings);
+                result.Merge(inv, mergeSettings);
+                var options = result.ToObject<ReceiptOptions>()!;
+                return options;
+            }
+
+            public static ReceiptOptions CreateDefault()
+            {
+                return new ReceiptOptions()
+                {
+                    ShowQR = true,
+                    Enabled = true,
+                    ShowPayments = true
+                };
+            }
+#nullable restore
+        }
         public class CheckoutOptions
         {
 
@@ -42,6 +85,7 @@ namespace BTCPayServer.Client.Models
             public bool? RedirectAutomatically { get; set; }
             public bool? RequiresRefundEmail { get; set; } = null;
             public string DefaultLanguage { get; set; }
+            public CheckoutType? CheckoutType { get; set; }
         }
     }
     public class InvoiceData : InvoiceDataBase

BTCPayServer.Client/Models/InvoicePaymentMethodDataModel.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using BTCPayServer.JsonConverters;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
 
 namespace BTCPayServer.Client.Models
 {
@@ -34,6 +35,7 @@ namespace BTCPayServer.Client.Models
         public string PaymentMethod { get; set; }
 
         public string CryptoCode { get; set; }
+        public JObject AdditionalData { get; set; }
 
         public class Payment
         {

BTCPayServer.Client/Models/LabelData.cs

@@ -1,9 +1,11 @@
+using System;
 using System.Collections.Generic;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 
 namespace BTCPayServer.Client.Models
 {
+    [Obsolete]
     public class LabelData
     {
         public string Type { get; set; }

BTCPayServer.Client/Models/LedgerEntryData.cs

@@ -0,0 +1,27 @@
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+
+namespace BTCPayServer.Client.Models;
+
+public class LedgerEntryData
+{
+    public string Asset { get; }
+    public decimal Qty { get; }
+
+    [JsonConverter(typeof(StringEnumConverter))]
+    public LedgerEntryType Type { get; }
+
+    public LedgerEntryData(string asset, decimal qty, LedgerEntryType type)
+    {
+        Asset = asset;
+        Qty = qty;
+        Type = type;
+    }
+
+    public enum LedgerEntryType
+    {
+        Trade = 0,
+        Fee = 1,
+        Withdrawal = 2
+    }
+}

BTCPayServer.Client/Models/LightningAutomatedPayoutSettings.cs

@@ -0,0 +1,13 @@
+using System;
+using BTCPayServer.Client.JsonConverters;
+using Newtonsoft.Json;
+
+namespace BTCPayServer.Client.Models;
+
+public class LightningAutomatedPayoutSettings
+{
+    public string PaymentMethod { get; set; }
+        
+    [JsonConverter(typeof(TimeSpanJsonConverter.Seconds))]
+    public TimeSpan IntervalSeconds { get; set; }
+}

BTCPayServer.Client/Models/LightningInvoiceData.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using BTCPayServer.Client.JsonConverters;
 using BTCPayServer.Lightning;
 using Newtonsoft.Json;
@@ -26,5 +27,8 @@ namespace BTCPayServer.Client.Models
 
         [JsonConverter(typeof(LightMoneyJsonConverter))]
         public LightMoney AmountReceived { get; set; }
+
+        [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
+        public Dictionary<ulong, string> CustomRecords { get; set; }
     }
 }

BTCPayServer.Client/Models/LightningNodeBalanceData.cs

@@ -0,0 +1,53 @@
+using BTCPayServer.Client.JsonConverters;
+using BTCPayServer.Lightning;
+using NBitcoin;
+using Newtonsoft.Json;
+
+namespace BTCPayServer.Client.Models
+{
+    public class LightningNodeBalanceData
+    {
+        [JsonProperty("onchain")]
+        public OnchainBalanceData OnchainBalance { get; set; }
+        
+        [JsonProperty("offchain")]
+        public OffchainBalanceData OffchainBalance { get; set; }
+        
+        public LightningNodeBalanceData()
+        {
+        }
+
+        public LightningNodeBalanceData(OnchainBalanceData onchain, OffchainBalanceData offchain)
+        {
+            OnchainBalance = onchain;
+            OffchainBalance = offchain;
+        }
+    }
+
+    public class OnchainBalanceData
+    {
+        [JsonConverter(typeof(JsonConverters.MoneyJsonConverter))]
+        public Money Confirmed { get; set; }
+
+        [JsonConverter(typeof(JsonConverters.MoneyJsonConverter))]
+        public Money Unconfirmed { get; set; }
+        
+        [JsonConverter(typeof(JsonConverters.MoneyJsonConverter))]
+        public Money Reserved { get; set; }
+    }
+
+    public class OffchainBalanceData
+    {
+        [JsonConverter(typeof(LightMoneyJsonConverter))]
+        public LightMoney Opening { get; set; }
+        
+        [JsonConverter(typeof(LightMoneyJsonConverter))]
+        public LightMoney Local { get; set; }
+        
+        [JsonConverter(typeof(LightMoneyJsonConverter))]
+        public LightMoney Remote { get; set; }
+        
+        [JsonConverter(typeof(LightMoneyJsonConverter))]
+        public LightMoney Closing { get; set; }
+    }
+}