How to get programmatically the oauth token after redirect?

API
2

When using “regular” oAuth the token is returned in step 3

Here is a sample request:

POST https://id.twitch.tv/oauth2/token
    ?client_id=uo6dggojyb8d6soh92zknwmi5ej1q2
    &client_secret=nyo51xcdrerl8z9m56w9w6wg
    &code=394a8bc98028f39660e53025de824134fb46313
    &grant_type=authorization_code
    &redirect_uri=http://localhost

You exchange the ?code= on the redirect for a access_token and refresh token

If using implcit

It’s only really available to the front end, via javascripts document.location.hash

For server to server/app access/client credentials it’s returned similar to regular user oauth in the POST request you make

Which token you attempt to get will depend on what you want to do with that token