Why am I getting \'Bad Authentication Data\' (Error 215) from the Twitter API?

Error 215: Bad Authentication Data from Twitter API

When attempting to access Twitter's API with the intention of retrieving a list of followers associated with a particular user, an error message with the code 215 and the message "Bad Authentication data" may be encountered.

The documentation for this specific error code is not readily available, but an explanation can be provided:

The error code 215 indicates that the authentication data used for the API call is incorrect or invalid. To rectify this issue, ensure that:

• The consumer key and consumer secret are correct and match those registered with Twitter.
• The token and token secret are valid and have been authorized by the user for your application.
• The nonce and timestamp are generated correctly, following the OAuth specifications for nonce and timestamp values.

As a reference, a simplified PHP code snippet that implements OAuth 1.0 authentication and makes a request to the Twitter API is provided below:

<code class="php">$token = 'YOUR_TOKEN';
$token_secret = 'YOUR_TOKEN_SECRET';
$consumer_key = 'CONSUMER_KEY';
$consumer_secret = 'CONSUMER_SECRET';

$host = 'api.twitter.com';
$method = 'GET';
$path = '/1.1/followers/ids.json'; // api call path

$query = array( // query parameters
    'cursor' => '-1',
    'screen_name' => 'username'
);

$oauth = array(
    'oauth_consumer_key' => $consumer_key,
    'oauth_token' => $token,
    'oauth_nonce' => (string)mt_rand(), // a stronger nonce is recommended
    'oauth_timestamp' => time(),
    'oauth_signature_method' => 'HMAC-SHA1',
    'oauth_version' => '1.0'
);

// complete the OAuth 1.0 authentication process
// ...

// continue with making the API call</code>

The above is the detailed content of Why am I getting \'Bad Authentication Data\' (Error 215) from the Twitter API?. For more information, please follow other related articles on the PHP Chinese website!