Get the app access token (https://dev.twitch.tv/docs/authentication#types-of-tokens)

The app access tokens expires in 60 days

The client id and secret are app specific and can be found in the twitch development dashboard

Example: {:ok, %{"access_token" => access_token, "token_type" => token_type, "expires_in" => expires_in}} = get_app_access_token!(client_id, client_secret)

Getting a user_access_token used requires some front-end logic.

1: Add a link to your app - https://id.twitch.tv/oauth2/authorize?client_id=XX&redirect_uri=XX&response_type=token&scope=XX

2: The user will authorize there

3: Twitch will call the redirect_uri

Example:

def authorize(conn, %{"access_token" => access_token})
   {:ok, %{
     "client_id": _,
     "login": _,
     "scopes": [
       "chat:read",
       "moderation:read"
     ],
     "user_id": _,
     "expires_in": _,
  }} = get_user_access_token!(access_token)
end