iOS Firebase Twitter Auth + Using OAuth Token for requests

[royherma]

Hi, i've succesfully integrated Twitter Auth via my iOS app and firebase, as explained here: https://firebase.google.com/docs/auth/ios/twitter-login

I'm able to get an oauth access token + secret from the user that authorizes the connection via app.

My intention was to use the oauth access token to make requests via the node-twitter-api-v2 library, for example - fetching the user's bookmarks.

I tried using the access token in place of the "bearer token" when initializing the TwitterApi client, but am still getting the error:

Authenticating with OAuth 2.0 Application-Only is forbidden for this endpoint. Supported authentication types are [OAuth 1.0a User Context, OAuth 2.0 User Context].

From my understanding, such requests must be made via a "logged in" client and the v2 api - question is, is there a way to use the already authed user's (via app) token to make the request / log in? This is done via background + backend, so the idea is that there is no UI / callback to make the user go through to create the logged in session.

Any ideas on how to approach this or if it's even possible?

Example code:

//call the new v2 api
      const bookmarkedTweets = await this.twitterClient.v2.bookmarks({
        max_results: max_fetch_limit,
        expansions: ['attachments.media_keys'],
        'media.fields': ['preview_image_url', 'url', 'variants'],
        'tweet.fields': ['created_at', 'entities', 'attachments', 'author_id', 'conversation_id', 'id', 'text'],
      });

Error response:

  data: {
>      title: 'Unsupported Authentication',
>      detail: 'Authenticating with OAuth 2.0 Application-Only is forbidden for this endpoint.  Supported authentication types are [OAuth 1.0a User Context, OAuth 2.0 User Context].',
>      type: 'https://api.twitter.com/2/problems/unsupported-authentication',
>      status: 403
>    }

Thank you - any help is greatly appreciated ❤️