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authentik/website/docs/integrations/services/matrix-synapse/index.md

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Matrix Synapse

What is Matrix Synapse

From https://matrix.org/

:::note Matrix is an open source project that publishes the Matrix open standard for secure, decentralised, real-time communication, and its Apache licensed reference implementations. :::

Preparation

The following placeholders will be used:

  • matrix.company is the FQDN of the Matrix install.
  • authentik.company is the FQDN of the authentik install.

Create an application in authentik. Create an OAuth2/OpenID provider with the following parameters:

  • Client Type: Confidential
  • JWT Algorithm: RS256
  • Scopes: OpenID, Email and Profile
  • RSA Key: Select any available key
  • Redirect URIs: https://matrix.company/_synapse/client/oidc/callback

Note the Client ID and Client Secret values. Create an application, using the provider you've created above. Note the slug of the application you've created.

Matrix

Add the following block to your Matrix config

oidc_providers:
  - idp_id: authentik
    idp_name: authentik
    discover: true
    issuer: "https://authentik.company/application/o/app-slug/"
    client_id: "*client id*"
    client_secret: "*client secret*"
    scopes:
      - "openid"
      - "profile"
      - "email"
    user_mapping_provider:
      config:
        localpart_template: "{{ '{{ user.name }}' }}"
        display_name_template: "{{ '{{ user.name|capitalize }}' }}"