Merge pull request #855 from tinode/postgres

Postgres adapter
2025-03-14 10:05:07 +00:00 · 2023-04-07 02:42:49 +03:00
parent 4faffa88d1 445fb8d671
commit bab6c5e3d3
26 changed files with 3848 additions and 45 deletions
--- a/INSTALL.md
+++ b/INSTALL.md
@ -6,7 +6,7 @@ The config file [`tinode.conf`](./server/tinode.conf) contains extensive instruc

 1. Visit the [Releases page](https://github.com/tinode/chat/releases/), choose the latest or otherwise the most suitable release. From the list of binaries download the one for your database and platform. Once the binary is downloaded, unpack it to a directory of your choosing, `cd` to that directory.

-2. Make sure your database is running. Make sure it's configured to accept connections from `localhost`. In case of MySQL, Tinode will try to connect as `root` without the password. See notes below (_Building from Source_, section 4) on how to configure Tinode to use a different user or a password. MySQL 5.7 or above is required. MySQL 5.6 or below **will not work**.
+2. Make sure your database is running. Make sure it's configured to accept connections from `localhost`. In case of MySQL, Tinode will try to connect as `root` without the password. In case of PostgreSQL, Tinode will try connect as `postgres` with the password `postgres`. See notes below (_Building from Source_, section 4) on how to configure Tinode to use a different user or a password. MySQL 5.7 or above is required. MySQL 5.6 or below **will not work**. PostgreSQL 13 or above is required. PostgreSQL 12 or below **will not work**.

 3. Run the database initializer `init-db` (or `init-db.exe` on Windows):
 	```
@ -34,7 +34,8 @@ See [instructions](./docker/README.md)

 3. Make sure one of the following databases is installed and running:
 * MySQL 5.7 or above. MySQL 5.6 or below **will not work**.
- * MongoDB 4.0 or above.
+ * PostgreSQL 13 or above. PostgreSQL 12 or below **will not work**.
+ * MongoDB 4.2 or above.
 * RethinkDB.

 4. Fetch, build Tinode server and tinode-db database initializer:
@ -43,6 +44,11 @@ See [instructions](./docker/README.md)
 	go install -tags mysql github.com/tinode/chat/server@latest
 	go install -tags mysql github.com/tinode/chat/tinode-db@latest
 	```
+	- **PostgreSQL**:
+	```
+	go install -tags postgres github.com/tinode/chat/server@latest
+	go install -tags postgres github.com/tinode/chat/tinode-db@latest
+	```
  - **MongoDB**:
 	```
 	go install -tags mongodb github.com/tinode/chat/server@latest
@ -55,13 +61,13 @@ See [instructions](./docker/README.md)
 	```
  - **All** (bundle all of the above DB adapters):
 	```
-	go install -tags "mysql rethinkdb mongodb" github.com/tinode/chat/server@latest
-	go install -tags "mysql rethinkdb mongodb" github.com/tinode/chat/tinode-db@latest
+	go install -tags "mysql rethinkdb mongodb postgres" github.com/tinode/chat/server@latest
+	go install -tags "mysql rethinkdb mongodb postgres" github.com/tinode/chat/tinode-db@latest
 	```

    The steps above install Tinode binaries at `$GOPATH/bin/`, sorces and supporting files are located at `$GOPATH/pkg/mod/github.com/tinode/chat@vX.XX.X/` where `X.XX.X` is the version you installed, such as `0.19.1`.

-    Note the required **`-tags rethinkdb`**, **`-tags mysql`** or **`-tags mongodb`** build option.
+    Note the required **`-tags rethinkdb`**, **`-tags mysql`**, **`-tags mongodb`** or **`-tags postgres`** build option.

    You may also optionally define `main.buildstamp` for the server by adding a build option, for instance, with a timestamp:
    ```
@ -109,6 +115,10 @@ cd $GOPATH/pkg/mod/github.com/tinode/chat@vX.XX.X
 	```
 	mysql.server start
 	```
+ - **PostgreSQL**: https://www.postgresql.org/docs/current/app-pg-ctl.html
+	```
+	pg_ctl start
+	```
 - **MongoDB**: https://docs.mongodb.com/manual/administration/install-community/
 MongoDB should run as single node replicaset. See https://docs.mongodb.com/manual/administration/replica-set-deployment/
 	```
--- a/README.md
+++ b/README.md
@ -1,6 +1,6 @@
 # Tinode Instant Messaging Server

-<img src="docs/logo.svg" align="left" width=128 height=128> Instant messaging server. Backend in pure [Go](http://golang.org) (license [GPL 3.0](http://www.gnu.org/licenses/gpl-3.0.en.html)), client-side binding in Java, Javascript, and Swift, as well as [gRPC](https://grpc.io/) client support for C++, C#, Go, Java, Node, PHP, Python, Ruby, Objective-C, etc. (license [Apache 2.0](http://www.apache.org/licenses/LICENSE-2.0)). Wire transport is JSON over websocket (long polling is also available) for custom bindings, or [protobuf](https://developers.google.com/protocol-buffers/) with gRPC. Persistent storage is any one of MySQL, MongoDB or [RethinkDB](http://rethinkdb.com/). Other databases can be supported by writing custom adapters.
+<img src="docs/logo.svg" align="left" width=128 height=128> Instant messaging server. Backend in pure [Go](http://golang.org) (license [GPL 3.0](http://www.gnu.org/licenses/gpl-3.0.en.html)), client-side binding in Java, Javascript, and Swift, as well as [gRPC](https://grpc.io/) client support for C++, C#, Go, Java, Node, PHP, Python, Ruby, Objective-C, etc. (license [Apache 2.0](http://www.apache.org/licenses/LICENSE-2.0)). Wire transport is JSON over websocket (long polling is also available) for custom bindings, or [protobuf](https://developers.google.com/protocol-buffers/) with gRPC.

 Tinode is *not* XMPP/Jabber. It is *not* compatible with XMPP. It's meant as a replacement for XMPP. On the surface, it's a lot like open source WhatsApp or Telegram.

@ -112,7 +112,11 @@ When you register a new account you are asked for an email address to send valid
    * Java with dependencies on [Jackson](https://github.com/FasterXML/jackson) and [Java-Websocket](https://github.com/TooTallNate/Java-WebSocket). Suitable for Android but with no Android SDK dependencies.
    * Swift with no external dependencies.
    * C/C++, C#, Go, Python, PHP, Ruby and many other languages using [gRPC](https://grpc.io/docs/languages/).
-  * Choice of a database backend: MySQL, RethinkDB, MongoDB. Other databases can be added with by writing [adapters](server/db/adapter.go).
+  * Choice of a database backend. Other databases can be added with by writing [adapters](server/db/adapter.go).
+    * MySQL
+    * PostgreSQL
+    * MongoDB
+    * [RethinkDB](http://rethinkdb.com/)

 ### Planned

--- a/build-all.sh
+++ b/build-all.sh
@ -14,7 +14,7 @@ goarc=( amd64 arm64 amd64 amd64 )
 buildCount=${#goplat[@]}

 # Supported database tags
-dbadapters=( mysql mongodb rethinkdb )
+dbadapters=( mysql mongodb rethinkdb postgres )
 dbtags=( ${dbadapters[@]} alldbs )

 for line in $@; do
--- a/docker-build.sh
+++ b/docker-build.sh
@ -1,6 +1,6 @@
 #!/bin/bash

-# Build Tinode docker linux/amd64 images. 
+# Build Tinode docker linux/amd64 images.
 # You may have to install buildx https://docs.docker.com/buildx/working-with-buildx/
 # if your build host and target architectures are different (e.g. building on a Mac
 # with Apple silicon).
@ -30,7 +30,7 @@ if [ `uname -m` != 'x86_64' ]; then
  buildcmd='buildx build --platform=linux/amd64'
 fi

-dbtags=( mysql mongodb rethinkdb alldbs )
+dbtags=( mysql mongodb rethinkdb postgres alldbs )

 # Build an images for various DB backends
 for dbtag in "${dbtags[@]}"
--- a/docker/README.md
+++ b/docker/README.md
@ -11,18 +11,20 @@ All images are available at https://hub.docker.com/r/tinode/

 3. Decide which database backend you want to use: RethinkDB, MySQL or MongoDB. Run the selected database container, attaching it to `tinode-net` network:

-	1. **RethinkDB**: If you've decided to use RethinkDB backend, run the official RethinkDB Docker container:
-	```
-	$ docker run --name rethinkdb --network tinode-net --restart always -d rethinkdb:2.3
-	```
-	See [instructions](https://hub.docker.com/_/rethinkdb/) for more options.
-
-	2. **MySQL**: If you've decided to use MySQL backend, run the official MySQL Docker container:
+	1. **MySQL**: If you've decided to use MySQL backend, run the official MySQL Docker container:
 	```
 	$ docker run --name mysql --network tinode-net --restart always --env MYSQL_ALLOW_EMPTY_PASSWORD=yes -d mysql:5.7
 	```
 	See [instructions](https://hub.docker.com/_/mysql/) for more options. MySQL 5.7 or above is required.

+	2. **PostgreSQL**: If you've decided to use PostgreSQL backend, run the official PostgreSQL Docker container:
+	```
+	$ docker run --name postgres --network tinode-net --restart always --env POSTGRES_PASSWORD=postgres -d postgres:13
+	```
+	See [instructions](https://hub.docker.com/_/postgres/) for more options. PostgresSQL 13 or above is required.
+
+	The name `rethinkdb`, `mysql`, `mongodb` or `postgres` in the `--name` assignment is important. It's used by other containers as a database's host name.
+
 	3. **MongoDB**: If you've decided to use MongoDB backend, run the official MongoDB Docker container and initialise it as single node replica set (you can change "rs0" if you wish):
   ```
   $ docker run --name mongodb --network tinode-net --restart always -d mongo:latest --replSet "rs0"
@ -34,25 +36,34 @@ All images are available at https://hub.docker.com/r/tinode/
   ```
 	See [instructions](https://hub.docker.com/_/mongo/) for more options. MongoDB 4.2 or above is required.

-	The name `rethinkdb`, `mysql` or `mongodb` in the `--name` assignment is important. It's used by other containers as a database's host name.
+	4. **RethinkDB**: If you've decided to use RethinkDB backend, run the official RethinkDB Docker container:
+	```
+	$ docker run --name rethinkdb --network tinode-net --restart always -d rethinkdb:2.3
+	```
+	See [instructions](https://hub.docker.com/_/rethinkdb/) for more options.

 4. Run the Tinode container for the appropriate database:

-	1. **RethinkDB**:
-	```
-	$ docker run -p 6060:6060 -d --name tinode-srv --network tinode-net tinode/tinode-rethinkdb:latest
-	```
-
-	2. **MySQL**:
+	1. **MySQL**:
 	```
 	$ docker run -p 6060:6060 -d --name tinode-srv --network tinode-net tinode/tinode-mysql:latest
 	```

+	2. **PostgreSQL**:
+	```
+	$ docker run -p 6060:6060 -d --name tinode-srv --network tinode-net tinode/tinode-postgresql:latest
+	```
+
 	3. **MongoDB**:
 	```
 	$ docker run -p 6060:6060 -d --name tinode-srv --network tinode-net tinode/tinode-mongodb:latest
 	```

+	4. **RethinkDB**:
+	```
+	$ docker run -p 6060:6060 -d --name tinode-srv --network tinode-net tinode/tinode-rethinkdb:latest
+	```
+
 	You can also run Tinode with the `tinode/tinode` image (which has all of the above DB adapters compiled in). You will need to specify the database adapter via `STORE_USE_ADAPTER` environment variable. E.g. for `mysql`, the command line will look like
 	```
 	$ docker run -p 6060:6060 -d -e STORE_USE_ADAPTER mysql --name tinode-srv --network tinode-net tinode/tinode:latest
@ -64,9 +75,10 @@ All images are available at https://hub.docker.com/r/tinode/

 	You may replace `:latest` with a different tag. See all all available tags here:
 	 * [MySQL tags](https://hub.docker.com/r/tinode/tinode-mysql/tags/)
-	 * [RethinkDB tags](https://hub.docker.com/r/tinode/tinode-rethink/tags/)
+	 * [PostgreSQL tags](https://hub.docker.com/r/tinode/tinode-postgresql/tags/) (beta version)
 	 * [MongoDB tags](https://hub.docker.com/r/tinode/tinode-mongodb/tags/)
-	 * [All bundle tags](https://hub.docker.com/r/tinode/tinode/tags/) (comming soon)
+	 * [RethinkDB tags](https://hub.docker.com/r/tinode/tinode-rethink/tags/)
+	 * [All bundle tags](https://hub.docker.com/r/tinode/tinode/tags/)

 5. Test the installation by pointing your browser to [http://localhost:6060/](http://localhost:6060/).

@ -189,6 +201,7 @@ You can specify the following environment variables when issuing `docker run` co
 | `MEDIA_HANDLER` | string | `fs` | Handler of large files, either `fs` or `s3` |
 | `MYSQL_DSN` | string | `'root@tcp(mysql)/tinode'` | MySQL [DSN](https://github.com/go-sql-driver/mysql#dsn-data-source-name). |
 | `PLUGIN_PYTHON_CHAT_BOT_ENABLED` | bool | `false` | Enable calling into the plugin provided by Python chatbot |
+| `POSTGRES_DSN` | string | `'postgresql://postgres:postgres@localhost:5432/tinode'` |  PostgreSQL [DSN](https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNSTRING). |
 | `RESET_DB` | bool | `false` | Drop and recreate the database. |
 | `SAMPLE_DATA` | string |  _see comment →_ | File with sample data to load. Default `data.json` when resetting or generating new DB, none when upgrading. Use `` (empty string) to disable |
 | `SMTP_DOMAINS` | string |  | White list of email domains; when non-empty, accept registrations with emails from these domains only (email verification). |
--- a/docker/docker-compose/README.md
+++ b/docker/docker-compose/README.md
@ -10,8 +10,11 @@ By default, this command starts up a mysql instance, Tinode server(s) and Tinode
 Tinode server(s) is(are) configured similar to [Tinode Demo/Sandbox](../../README.md#demosandbox) and
 maps its web port to the host's port 6060 (6061, 6062). Tinode exporter(s) serve(s) metrics for InfluxDB.

-Reference configuration for [RethinkDB 2.4.0](https://hub.docker.com/_/rethinkdb?tab=tags) and [MongoDB 4.2.3](https://hub.docker.com/_/mongo?tab=tags) is also available
-in the override files.
+Reference configuration for the following databases is also available in the override files:
+* [PostgreSQL 15.2](https://hub.docker.com/_/postgres/tags)
+* [MongoDB 4.2.3](https://hub.docker.com/_/mongo/tags)
+* [RethinkDB 2.4.2](https://hub.docker.com/_/rethinkdb/tags)
+

 ## Commands

@ -20,12 +23,15 @@ To bring up the full stack, you can use the following commands:
 * MySql:
  - Single-instance setup: `docker-compose -f single-instance.yml up -d`
  - Cluster: `docker-compose -f cluster.yml up -d`
-* RethinkDb:
-  - Single-instance setup: `docker-compose -f single-instance.yml -f single-instance.rethinkdb.yml up -d`
-  - Cluster: `docker-compose -f cluster.yml -f cluster.rethinkdb.yml up -d`
+* PostgreSQL:
+  - Single-instance setup: `docker-compose -f single-instance.yml -f single-instance.postgres.yml up -d`
+  - Cluster: `docker-compose -f cluster.yml -f cluster.postgres.yml up -d`
 * MongoDb:
  - Single-instance setup: `docker-compose -f single-instance.yml -f single-instance.mongodb.yml up -d`
  - Cluster: `docker-compose -f cluster.yml -f cluster.mongodb.yml up -d`
+* RethinkDb:
+  - Single-instance setup: `docker-compose -f single-instance.yml -f single-instance.rethinkdb.yml up -d`
+  - Cluster: `docker-compose -f cluster.yml -f cluster.rethinkdb.yml up -d`

 You can run individual/separate components of the setup by providing their names to the `docker-compose` command.
 E.g. to start the Tinode server in the single-instance MySql setup,
--- a/docker/docker-compose/cluster.mongodb.yml
+++ b/docker/docker-compose/cluster.mongodb.yml
@ -1,4 +1,4 @@
-version: '3.7'
+version: '3.8'

 x-mongodb-tinode-env-vars: &mongodb-tinode-env-vars
  "STORE_USE_ADAPTER": "mongodb"
--- a/docker/docker-compose/cluster.postgres.yml
+++ b/docker/docker-compose/cluster.postgres.yml
@ -0,0 +1,24 @@
+version: '3.8'
+
+x-postgres-tinode-env-vars: &postgres-tinode-env-vars
+  "STORE_USE_ADAPTER": "postgres"
+
+services:
+  db:
+    image: postgres:15.2
+    container_name: postgres
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready"]
+
+  tinode-0:
+    environment:
+      << : *postgres-tinode-env-vars
+      "WAIT_FOR": "postgres:5432"
+
+  tinode-1:
+    environment:
+      << : *postgres-tinode-env-vars
+
+  tinode-2:
+    environment:
+      << : *postgres-tinode-env-vars
--- a/docker/docker-compose/cluster.rethinkdb.yml
+++ b/docker/docker-compose/cluster.rethinkdb.yml
@ -1,11 +1,11 @@
-version: '3.7'
+version: '3.8'

 x-rethinkdb-tinode-env-vars: &rethinkdb-tinode-env-vars
  "STORE_USE_ADAPTER": "rethinkdb"

 services:
  db:
-    image: rethinkdb:2.4.0
+    image: rethinkdb:2.4.2
    container_name: rethinkdb
    healthcheck:
      test: ["CMD", "curl -f http://localhost:8080/ || exit 1"]
--- a/docker/docker-compose/cluster.yml
+++ b/docker/docker-compose/cluster.yml
@ -4,7 +4,7 @@
 # * 3 Tinode servers
 # * 3 exporters

-version: '3.7'
+version: '3.8'

 # Base Tinode template.
 x-tinode:
--- a/docker/docker-compose/single-instance.mongodb.yml
+++ b/docker/docker-compose/single-instance.mongodb.yml
@ -1,4 +1,4 @@
-version: '3.7'
+version: '3.8'

 x-mongodb-tinode-env-vars: &mongodb-tinode-env-vars
  "STORE_USE_ADAPTER": "mongodb"
--- a/docker/docker-compose/single-instance.postgres.yml
+++ b/docker/docker-compose/single-instance.postgres.yml
@ -0,0 +1,16 @@
+version: '3.8'
+
+x-postgres-tinode-env-vars: &postgres-tinode-env-vars
+  "STORE_USE_ADAPTER": "postgres"
+
+services:
+  db:
+    image: postgres:15.2
+    container_name: postgres
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready"]
+
+  tinode-0:
+    environment:
+      << : *postgres-tinode-env-vars
+      "WAIT_FOR": "postgres:5432"
--- a/docker/docker-compose/single-instance.rethinkdb.yml
+++ b/docker/docker-compose/single-instance.rethinkdb.yml
@ -1,4 +1,4 @@
-version: '3.7'
+version: '3.8'

 x-rethinkdb-tinode-env-vars: &rethinkdb-tinode-env-vars
  "STORE_USE_ADAPTER": "rethinkdb"
--- a/docker/docker-compose/single-instance.yml
+++ b/docker/docker-compose/single-instance.yml
@ -4,7 +4,7 @@
 # * Tinode server
 # * Tinode exporters

-version: '3.7'
+version: '3.8'

 # Base Tinode template.
 x-tinode:
--- a/docker/tinode/Dockerfile
+++ b/docker/tinode/Dockerfile
@ -21,12 +21,11 @@ LABEL version=$VERSION

 # Build-time options.

-# Database selector. Builds for RethinkDB by default.
-# Alternatively use
-# `--build-arg TARGET_DB=mysql` to build for MySQL or
-# `--build-arg TARGET_DB=mongodb` to build for MongoDB.
-# `--build-arg TARGET_DB=alldbs` to build a generic Tinode docker image.
-ARG TARGET_DB=rethinkdb
+# Database selector. Builds for MySQL by default.
+# Alternatively use one of: postgres mongodb rethinkdb for a corresponsing
+# DB backend or alldbs to build a generic Tinode docker image, for example:
+# `--build-arg TARGET_DB=postgres` to build for PostgreSQL.
+ARG TARGET_DB=mysql
 ENV TARGET_DB=$TARGET_DB

 # Runtime options.
@ -51,6 +50,9 @@ ENV SAMPLE_DATA=$SAMPLE_DATA
 # The MySQL DSN connection.
 ENV MYSQL_DSN='root@tcp(mysql)/tinode'

+# The PostgreSQL DSN connection.
+ENV POSTGRES_DSN='postgresql://postgres:postgres@localhost:5432/tinode'
+
 # Disable chatbot plugin by default.
 ENV PLUGIN_PYTHON_CHAT_BOT_ENABLED=false

--- a/docker/tinode/config.template
+++ b/docker/tinode/config.template
@ -63,6 +63,10 @@
 				"database": "tinode",
 				"dsn": "$MYSQL_DSN?parseTime=true&collation=utf8mb4_unicode_ci"
 			},
+			"postgres": {
+				"database": "tinode",
+				"dsn": "$POSTGRES_DSN?sslmode=disable"
+			},
 			"rethinkdb": {
 				"database": "tinode",
 				"addresses": "rethinkdb"
--- a/go.mod
+++ b/go.mod
@ -10,6 +10,8 @@ require (
 	github.com/google/go-cmp v0.5.9
 	github.com/gorilla/handlers v1.5.1
 	github.com/gorilla/websocket v1.5.0
+	github.com/jackc/pgconn v1.14.0
+	github.com/jackc/pgx/v4 v4.18.1
 	github.com/jmoiron/sqlx v1.3.5
 	github.com/nyaruka/phonenumbers v1.1.6
 	github.com/prometheus/client_golang v1.14.0
@ -44,6 +46,13 @@ require (
 	github.com/googleapis/enterprise-certificate-proxy v0.2.3 // indirect
 	github.com/googleapis/gax-go/v2 v2.7.0 // indirect
 	github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed // indirect
+	github.com/jackc/chunkreader/v2 v2.0.1 // indirect
+	github.com/jackc/pgio v1.0.0 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgproto3/v2 v2.3.2 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
+	github.com/jackc/pgtype v1.14.0 // indirect
+	github.com/jackc/puddle v1.3.0 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/klauspost/compress v1.15.15 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
--- a/go.sum
+++ b/go.sum
@ -16,6 +16,7 @@ cloud.google.com/go/storage v1.29.0/go.mod h1:4puEjyTKnku6gfKoTfNOU/W+a9JyuVNxjp
 firebase.google.com/go v3.13.0+incompatible h1:3TdYC3DDi6aHn20qoRkxwGqNgdjtblwVAyRLQwGn/+4=
 firebase.google.com/go v3.13.0+incompatible/go.mod h1:xlah6XbEyW6tbfSklcfe5FHJIwjt8toICdV5Wh9ptHs=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/Masterminds/semver/v3 v3.1.1/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=
 github.com/aws/aws-sdk-go v1.44.204 h1:7/tPUXfNOHB390A63t6fJIwmlwVQAkAwcbzKsU2/6OQ=
 github.com/aws/aws-sdk-go v1.44.204/go.mod h1:aVsgQcEevwlmQ7qHE9I3h+dtQgpqhFB+i8Phjh7fkwI=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
@ -29,6 +30,11 @@ github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
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@ -41,9 +47,14 @@ github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSw
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@ -94,24 +106,85 @@ github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/ad
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@ -130,6 +203,7 @@ github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFSt
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@ -143,16 +217,28 @@ github.com/prometheus/common v0.39.0 h1:oOyhkDq05hPZKItWVBkJ6g6AtGxi+fy7F4JvUV8u
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@ -181,14 +267,32 @@ github.com/youmark/pkcs8 v0.0.0-20201027041543-1326539a0a0a h1:fZHgsYlfvtyqTosly
 github.com/youmark/pkcs8 v0.0.0-20201027041543-1326539a0a0a/go.mod h1:ul22v+Nro/R083muKhosV54bj5niojjWZvU8xrevuH4=
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 go.mongodb.org/mongo-driver v1.11.2/go.mod h1:s7p5vEtfbeR1gYi6pnj3c3/urpbLv2T5Sfd6Rp2HBB8=
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 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.6.0 h1:qfktjS5LUO+fFKeJXZ+ikTRijMmljikvG68fpMMruSc=
@ -197,6 +301,9 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
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@ -207,12 +314,14 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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@ -227,10 +336,18 @@ golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJ
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@ -243,12 +360,15 @@ golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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@ -261,10 +381,18 @@ golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
+golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
+golang.org/x/tools v0.0.0-20190823170909-c4a336ef6a2f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -309,8 +437,10 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
+gopkg.in/inconshreveable/log15.v2 v2.0.0-20180818164646-67afb5ed74ec/go.mod h1:aPpfJ7XW+gOuirDoZ8gHhLh3kZ1B08FtV2bbmy7Jv3s=
 gopkg.in/rethinkdb/rethinkdb-go.v6 v6.2.2 h1:tczPZjdz6soV2thcuq1IFOuNLrBUGonFyUXBbIWXWis=
 gopkg.in/rethinkdb/rethinkdb-go.v6 v6.2.2/go.mod h1:c7Wo0IjB7JL9B9Avv0UZKorYJCUhiergpj3u1WtGT1E=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
@ -323,3 +453,4 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
--- a/server/db/postgres/adapter.go
+++ b/server/db/postgres/adapter.go
--- a/server/db/postgres/blank.go
+++ b/server/db/postgres/blank.go
@ -0,0 +1,8 @@
+//go:build !postgres
+// +build !postgres
+
+// This file is needed for conditional compilation. It's used when
+// the build tag 'postgres' is not defined. Otherwise the adapter.go
+// is compiled.
+
+package postgres
--- a/server/db/postgres/schema.sql
+++ b/server/db/postgres/schema.sql
@ -0,0 +1,2 @@
+# The MySQL and PostrgreSQL schemas are identical save for differences in SQL flavors.
+# SEE ../mysql/schema.sql.
--- a/server/main.go
+++ b/server/main.go
@ -37,6 +37,7 @@ import (
 	// Database backends
 	_ "github.com/tinode/chat/server/db/mongodb"
 	_ "github.com/tinode/chat/server/db/mysql"
+	_ "github.com/tinode/chat/server/db/postgres"
 	_ "github.com/tinode/chat/server/db/rethinkdb"

 	"github.com/tinode/chat/server/logs"
--- a/server/tinode.conf
+++ b/server/tinode.conf
@ -223,6 +223,28 @@

 		// Configurations of individual adapters.
 		"adapters": {
+			// PostgreSQL configuration. See https://godoc.org/github.com/jackc/pgx#Config
+			// for other possible options.
+			"postgres": {
+				// PostgreSQL connection settings.
+				"User": "postgres",
+				"Passwd": "postgres",
+				"Host": "localhost",
+				"Port": "5432",
+				"DBName": "tinode",
+
+				// PostgreSQL connection pool settings.
+				// Maximum number of open connections to the database. Zero means unlimited.
+				"max_open_conns": 64,
+				// Maximum number of connections in the idle connection pool. Zero means no idle connections are retained.
+				"max_idle_conns": 64,
+				// Maximum amount of time a connection may be reused. Zero means unlimited.
+				"conn_max_lifetime": 60,
+				// Maximum amount of time waiting for a connection from the pool. Zero means no timeout.
+				"sql_timeout": 10
+			},
+
+
 			// MySQL configuration. See https://godoc.org/github.com/go-sql-driver/mysql#Config
 			// for other possible options.
 			"mysql": {
--- a/tinode-db/README.md
+++ b/tinode-db/README.md
@ -13,6 +13,9 @@ This utility initializes the `tinode` database (or upgrades an existing DB from
 - **MongoDB**
  `go build -tags mongodb` or `go build -i -tags mongodb` to automatically install missing dependencies.

+ - **PostgreSQL**
+  `go build -tags postgres` or `go build -i -tags postgres` to automatically install missing dependencies.
+

 ## Run

@ -48,3 +51,4 @@ Avatar photos curtesy of https://www.pexels.com/ under [CC0 license](https://www
 * [RethinkDB schema](https://github.com/tinode/chat/tree/master/server/db/rethinkdb/schema.md)
 * [MySQL schema](https://github.com/tinode/chat/tree/master/server/db/mysql/schema.sql)
 * [MongoDB schema](https://github.com/tinode/chat/tree/master/server/db/mongodb/schema.md)
+* [PostgreSQL schema](https://github.com/tinode/chat/tree/master/server/db/postgres/schema.sql)
--- a/tinode-db/main.go
+++ b/tinode-db/main.go
@ -16,6 +16,7 @@ import (
 	"github.com/tinode/chat/server/auth"
 	_ "github.com/tinode/chat/server/db/mongodb"
 	_ "github.com/tinode/chat/server/db/mysql"
+	_ "github.com/tinode/chat/server/db/postgres"
 	_ "github.com/tinode/chat/server/db/rethinkdb"
 	"github.com/tinode/chat/server/store"
 	"github.com/tinode/chat/server/store/types"
--- a/tinode-db/tinode.conf
+++ b/tinode-db/tinode.conf
@ -3,6 +3,10 @@
 		"uid_key": "la6YsO+bNX/+XIkOqc5Svw==",
 		"use_adapter": "",
 		"adapters": {
+			"postgres": {
+				"database": "tinode",
+				"dsn": "postgresql://postgres:postgres@localhost:5432/tinode?sslmode=disable"
+			},
 			"mysql": {
 				"database": "tinode",
 				"dsn": "root@tcp(localhost)/tinode?parseTime=true&collation=utf8mb4_unicode_ci"