Youtube Data Api - Members Endpoint - Access forbidden. The request may not be properly authorized

Description:

I'm encountering an issue while implementing the YouTube Data API in my Node.js backend.

I keep getting the following error:

{"error": {"code": 403,"message": "Access forbidden. The request may not be properly authorized.","errors": [      {"message": "Access forbidden. The request may not be properly authorized.","domain": "youtube.common","reason": "forbidden"      }    ]  }}

I've already set up the OAuth flow, obtained the access token, and ensured the correct scopes. Here are the scopes I've included:

scope: ['email','profile','openid','https://www.googleapis.com/auth/youtube.channel-memberships.creator','https://www.googleapis.com/auth/youtube','https://www.googleapis.com/auth/youtube.readonly','https://www.googleapis.com/auth/youtubepartner','https://www.googleapis.com/auth/youtubepartner-channel-audit',]

Surprisingly, I can successfully send a comment to a YouTube live video using the same process, but when it comes to the Members API, it's not working as expected.

Here's the non-functional code snippet:

async requestMembers({  access,  refresh,}: {  access: string;  refresh: string;}) {  const url = `${'https://youtube.googleapis.com/youtube/v3/'}members?part=snippet`;  fetch(url, {    headers: {      Authorization: `Bearer ${access}`,'Content-Type': 'application/json',    },  })    .then((res) => res.json())    .then((json) => {      console.log(JSON.stringify(json));    });}

And here's the working code snippet for sending comments:

sendComment = (text: string, access_token: string, id: string) => {  const url = `${'https://youtube.googleapis.com/youtube/v3/'}liveChat/messages?part=snippet`;  fetch(url, {    method: 'POST',    body: JSON.stringify({      snippet: {        liveChatId: id,        type: 'textMessageEvent',        textMessageDetails: {          messageText: text,        },      },    }),    headers: {      Authorization: `Bearer ${access_token}`,'Content-Type': 'application/json',    },  })    .then((response) => response.json())    .then((data) => console.log('send comment - ', data));};

I've double-checked the OAuth setup, ensured correct scopes, and compared it with the working comment-sending code, but the Members API request remains unauthorized. Any insights or suggestions on what might be causing this issue would be greatly appreciated. Thank you!