How to use Next Auth & OAuth to fetch from a Google API (e.g. Youtube's API)

I'm using NextAuth's Google Provider for Google account sign-ins. I've successfully authenticated users and now I'd like to make API calls to YouTube's API for authenticated user details. I am not sure how to use the access_token or id_token from Google in my GET requests.

Here's an example of what my logs show in terms of the response I get back from Google when I sign in (personal details redacted for privacy):

[next-auth][debug][OAUTH_CALLBACK_RESPONSE] {  profile: {    id: '[REDACTED]',    name: '[REDACTED]',    email: '[REDACTED]',    image: '[REDACTED]'  },  account: {    provider: 'google',    type: 'oauth',    providerAccountId: '[REDACTED]',    access_token: '[REDACTED]',    expires_at: [REDACTED],    scope: 'https://www.googleapis.com/auth/userinfo.profile https://www.googleapis.com/auth/youtube.readonly openid https://www.googleapis.com/auth/userinfo.email',    token_type: 'Bearer',    id_token: '[REDACTED]',  },  OAuthProfile: {    iss: 'https://accounts.google.com',    azp: '[REDACTED]',    aud: '[REDACTED]',    sub: '[REDACTED]',    email: '[REDACTED]',    email_verified: true,    at_hash: '[REDACTED]',    name: '[REDACTED]',    picture: '[REDACTED]',    given_name: '[REDACTED]',    locale: 'en',    iat: [REDACTED],    exp: [REDACTED]  }}

So, I can literally see the access_token in this log data, but I don't know how to use it client-side to make calls to Youtube's api.

For additional context, this is my current Next Auth config:

import NextAuth from "next-auth";import GoogleProvider from "next-auth/providers/google";const options = {    providers: [        GoogleProvider({            clientId: process.env.GOOGLE_CLIENT_ID,            clientSecret: process.env.GOOGLE_CLIENT_SECRET,            authorization: {                params: {                    scope: "openid email profile https://www.googleapis.com/auth/youtube.readonly",                },            },        }),    ],    callbacks: {        async jwt(token, user, account) {            try {                if (token.token.account?.access_token) {                    token.accessToken = token.token.account.access_token;                }                return token;            } catch (error) {                throw error;            }        },        async session(session, token) {            try {                if (token) {                    session.accessToken = token.accessToken;                }                return session;            } catch (error) {                throw error;            }        },    },    debug: true,};export default (req, res) => NextAuth(req, res, options);

I have tried to use this implementation to add the access_token returned from Google to the NextAuth session data. I expected the session to have this information by default, but when I observed that it didn't I tried to adjust the callbacks in the Next Auth config shown above. I think I need this access token to fetch from YouTube's api as an authenticated user (per this youtube api documentation), but I haven't found a solution for adding this information to the session.

Is there a way to add it? Am I even supposed to have the access_token available in the session data?

Any help would be much appreciated. Thank you!