Redirect URI for a custom OAuth provider

[aish-high]

under Site Settings -> AUthentication, Fider provides a way to add new providers for OAuth2.0. I am planning to use a custom OAuth provider and while registering my Fider client what would be the redirect URI to be registered? There's no mention of that anywhere in the documentation. Also will I be able to register the provider after my app is live, which is bit unconventional since I would expect to have auth enabled once I am live in prod

[mattwoberts]

It's pretty similar to the instructions for twitch - https://docs.fider.io/configuring-oauth#twitch

So when you're setting up the oauth client, just set the redirect URL to anything. Then when you add it to fider as an oauth provider, you'll get a callback URL. You can copy this and then edit your oauth client setup, and replace that temporary URL with the callback URL