# How to use Start the idp service: ```bash $ go run main.go 2024-01-10 16:48:01.415 [info] stdlib: 2024/01/10 10:48:01 IDP Issuer URL http://127.0.0.1:44517 2024-01-10 16:48:01.415 [info] stdlib: 2024/01/10 10:48:01 Oauth Flags 2024-01-10 16:48:01.415 [info] stdlib: 2024/01/10 10:48:01 --external-auth-providers='[{"type":"fake","client_id":"f2df566b-a1c9-407a-8b75-480db45c6476","client_secret":"55aca4e3-7b94-44b6-9f45-ecb5e81c560d","auth_url":"http://127.0.0.1:44517/oauth2/authorize","token_url":"http://127.0.0.1:44517/oauth2/token","validate_url":"http://127.0.0.1:44517/oauth2/userinfo","scopes":["openid","email","profile"]}]' 2024-01-10 16:48:01.415 [info] stdlib: 2024/01/10 10:48:01 Press Ctrl+C to exit ``` Then use the flag into your coderd instance: ```bash develop.sh -- --external-auth-providers='[{"type":"fake","client_id":"f2df566b-a1c9-407a-8b75-480db45c6476","client_secret":"55aca4e3-7b94-44b6-9f45-ecb5e81c560d","auth_url":"http://127.0.0.1:44517/oauth2/authorize","token_url":"http://127.0.0.1:44517/oauth2/token","validate_url":"http://127.0.0.1:44517/oauth2/userinfo","scopes":["openid","email","profile"]}]' ```