This API allows an administrator to join an user account with a given user_id
to a room with a given room_id_or_alias. You can only modify the membership of
local users. The server administrator must be in the room and have permission to
invite users.
To use it, you will need to authenticate by providing an access_token
for a server admin: see Admin API.
The following parameters are available:
user_id- Fully qualified user: for example,@user:server.com.room_id_or_alias- The room identifier or alias to join: for example,!636q39766251:server.com.
POST /_synapse/admin/v1/join/<room_id_or_alias>
{
"user_id": "@user:server.com"
}
Response:
{
"room_id": "!636q39766251:server.com"
}