Postiz

Postiz is an open-source, self-hosted social media scheduling tool that supports platforms like X (formerly Twitter), Bluesky, Mastodon, Discord, and others. This guide configures Postiz to use Pocket ID as an authentication provider.

Create the client in Pocket ID

1. In Pocket ID, open Administration → OIDC Clients and click Add OIDC Client.
2. Enter a name such as Postiz and add the callback URL https://postiz.example.com/settings.
3. Click Create and copy the Client ID and the Client secret. The client secret is only shown once.
4. On the client’s Access tab, select the groups that may sign in under Allowed User Groups, or choose All Users.

Configure Postiz

Set up Postiz as described in the official documentation.

Modify the following environment variables in the docker-compose.yml file:

NEXT_PUBLIC_POSTIZ_OAUTH_DISPLAY_NAME: "Pocket ID"
NEXT_PUBLIC_POSTIZ_OAUTH_LOGO_URL: "https://raw.githubusercontent.com/pocket-id/pocket-id/refs/heads/main/frontend/static/img/static-logo.svg"
POSTIZ_GENERIC_OAUTH: "true"
POSTIZ_OAUTH_URL: "https://id.example.com"
POSTIZ_OAUTH_AUTH_URL: "https://id.example.com/authorize"
POSTIZ_OAUTH_TOKEN_URL: "https://id.example.com/api/oidc/token"
POSTIZ_OAUTH_USERINFO_URL: "https://id.example.com/api/oidc/userinfo"
POSTIZ_OAUTH_CLIENT_ID: "<client-id>"
POSTIZ_OAUTH_CLIENT_SECRET: "<client-secret>"

Further reading

• Postiz Documentation for OIDC Configuration