Get id from the connected user

[cabri89]

Hello,

when a user is connected with Twitch account, I want to get his id.

But I don’t know how to make this.

Do you have an idea ?

Regards.

[BarryCarlyon]

When a user has connected with their Twitch account where?

[cabri89]

When a user is connected with this link and redirected to my website.

https://id.twitch.tv/oauth2/authorize?client_id=*****&response_type=token&scope=user:edit+user:read:email&redirect_uri=http://localhost/

[BarryCarlyon]

That gives you a code

You take the code and exchange the code for a token.

Then you can use the token with any of the twitch API’s.

Usually this endpoint:

Reference

Which if you don’t provide a ID will give you the data for the authenticating user, and optionally include email if the token you use has the right scope

[cabri89]

Thanks for the reply, when I try to request https://api.twitch.tv/helix/users when I’m logged. I have an error 400 :
{“error”:“Bad Request”,“status”:400,“message”:“Must provide an ID, Login or OAuth Token.”}

[BarryCarlyon]

@cabri89

when I’m logged.

You are trying this in a web browser? It won’t work with a web browser unless you are sending the relevant headers. As documented.

@cabri89

{“error”:“Bad Request”,“status”:400,“message”:“Must provide an ID, Login or OAuth Token.”}

The error message tells you what to do.

It would seem after doing the oAuth dance you didn’t apply the oAuth token to your request.

[cabri89]

I try this in JavaScript :

var myHeaders = new Headers();
myHeaders.append(“Client-ID”, twitchID);
const response = await fetch(twitchUserLink, {method: ‘GET’, mode: ‘cors’, headers: myHeaders});

Sorry I don’t know how to include code.

[BarryCarlyon]

You provided only a ClientID, you didn’t provide a ID, Login or OAuth Token, as the error message says

[cabri89]

Ok, when I try to provide the OAuth Token I have this error :

Request header field oauth-token is not allowed by Access-Control-Allow-Headers in preflight response.

[BarryCarlyon]

As per the docs I linked to in my first reply.

Which provides an example request:

curl -H 'Authorization: Bearer cfabdegwdoklmawdzdo98xt2fo512y' \
-X GET 'https://api.twitch.tv/helix/users?id=44322889'

The header is Authorization and you should preceed your token with Bearer since you provide a Bearer to can omit ?id=Whatever

[cabri89]

Yes ! It’s working perfectly !

Thanks a lot !

You’r the best