OpenID

This module allows users to verify their identity with a third party service. The third party service does need to be matrix-aware in that it will need to know to resolve matrix homeservers to exchange the user’s token for identity information.

POST /_matrix/client/r0/user/{userId}/openid/request_token

Gets an OpenID token object that the requester may supply to another service to verify their identity in Matrix. The generated token is only valid for exchanging for user information from the federation API for OpenID.

The access token generated is only valid for the OpenID API. It cannot be used to request another OpenID access token or call /sync, for example.

Rate-limited:	Yes
Requires authentication:	Yes

Request

Request parameters

path parameters
Name	Type	Description
`userId`	`string`	Required: The user to request and OpenID token for. Should be the user who is authenticated for the request.

Request body

Request body example

Specification error: Example invalid or not present

Responses

Status	Description
`200`	OpenID token information. This response is nearly compatible with the response documented in the OpenID Connect 1.0 Specification with the only difference being the lack of an `id_token`. Instead, the Matrix homeserver’s name is provided.
`429`	This request was rate-limited.

200 response

Name	Type	Description
`access_token`	`string`	Required: An access token the consumer may use to verify the identity of the person who generated the token. This is given to the federation API `GET /openid/userinfo` to verify the user’s identity.
`expires_in`	`integer`	Required: The number of seconds before this token expires and a new one must be generated.
`matrix_server_name`	`string`	Required: The homeserver domain the consumer should use when attempting to verify the user’s identity.
`token_type`	`string`	Required: The string `Bearer`.

{
  "access_token": "SomeT0kenHere",
  "expires_in": 3600,
  "matrix_server_name": "example.com",
  "token_type": "Bearer"
}

429 response

Name	Type	Description
`errcode`	`string`	Required: The M_LIMIT_EXCEEDED error code
`error`	`string`	A human-readable error message.
`retry_after_ms`	`integer`	The amount of time in milliseconds the client should wait before trying the request again.

{
  "errcode": "M_LIMIT_EXCEEDED",
  "error": "Too many requests",
  "retry_after_ms": 2000
}