Twitter API v2 Media Upload Issues

There appears to be some confusion about the Twitter/X API v2 media upload endpoint. Based on the errors you're encountering, here are some important clarifications:

Current Status of Media Upload Endpoints

Despite the deprecation notice for v1.1 endpoints, there is currently no direct v2 equivalent for the media upload endpoint. The /2/media/upload endpoint you're trying to use doesn't actually exist in the official API.

What You Should Be Using

You should continue using the v1.1 media upload endpoint (/1.1/media/upload.json) with OAuth 1.0a authentication until X provides an official v2 replacement. This endpoint requires OAuth 1.0a authentication and does not support OAuth 2.0 Bearer tokens, which explains your first error.

Troubleshooting Your OAuth 1.0a Issue

For your second issue with OAuth 1.0a authentication returning "Bad Authentication data", check the following:

1. Ensure all OAuth 1.0a parameters are correctly formatted and included:

   • oauth_consumer_key
   • oauth_nonce
   • oauth_signature
   • oauth_signature_method
   • oauth_timestamp
   • oauth_token
   • oauth_version

2. Verify your signature is being correctly generated - this is often the source of "Bad Authentication data" errors.

3. Make sure you're using the correct endpoint URL in your signature base string.

Example OAuth 1.0a Implementation

Here's a simplified example of how to structure your OAuth 1.0a request:

JAVACopied
// Example using Twitter4J (which you mentioned worked before)
ConfigurationBuilder cb = new ConfigurationBuilder();
cb.setDebugEnabled(true)
  .setOAuthConsumerKey("YOUR_CONSUMER_KEY")
  .setOAuthConsumerSecret("YOUR_CONSUMER_SECRET")
  .setOAuthAccessToken("YOUR_ACCESS_TOKEN")
  .setOAuthAccessTokenSecret("YOUR_ACCESS_TOKEN_SECRET");

TwitterFactory tf = new TwitterFactory(cb.build());
Twitter twitter = tf.getInstance();

// Upload media using v1.1 endpoint
UploadedMedia media = twitter.uploadMedia(new File("image.jpg"));

Continue using the v1.1 endpoint with OAuth 1.0a until X officially announces and documents the v2 replacement for media uploads.