Twitch bot - 401

Holy moly. I thought I had all figured out. So I have the wrong client id, lets start there. I am using this layout as Using OIDC to get OAuth Access Tokens | Twitch Developers says:

https://id.twitch.tv/oauth2/authorize
    ?response_type=code
    &client_id=hof5gwx0su6owfnys0nyan9c87zr6t
    &redirect_uri=https://localhost:3000
    &scope=channel%3Amanage%3Apolls+channel%3Aread%3Apolls+openid
    &state=c3ab8aa609ea11e793ae92361f002671
    &nonce=c3ab8aa609ea11e793ae92361f002671

But the client id I put in is from the app, so thats wrong? How do I know what client id I should say?
And if I had the correct client id, with the correct scopes, I get an access_token wich is my OAuth key, correct?

Sorry for beeing slow but well, I just started, duuh :smiley: