Twitch OAuth endpoints and related development resources
Twitch authorization endpoint
https://id.twitch.tv/oauth2/authorize
The endpoint to redirect users to in order to grant your application access to their account.
Twitch token endpoint
https://id.twitch.tv/oauth2/token
The endpoint to exchange the authorization code or refresh token for an access token and a refresh token.
Twitch userinfo endpoint
https://api.twitch.tv/helix/users
The standardized OAuth endpoint that returns authenticated user profile information, including claims about the current user based on the scope of access token.