The oAuth link that fits this situation should looks like the following one, could you double check it please?
https://id.twitch.tv/oauth2/authorize?client_id=${app_client_id}&redirect_uri=${redirect_url}&response_type=code&scope=channel:read:redemptions
Now we should able to proceed as the OAuth authorization code flow state, and at the end of the process I will have the token + refresh token without having a server setup. Am I right?
The only big difference is gonna be that I will not obtain the authorization code directly but I’ll need the broadcaster to copy and past it from the redirect page URL, no?