Twitter API returns error 215, Bad Authentication Data

Question

I am trying to call following Twitter's API to get a list of followers for a user.

http://api.twitter.com/1.1/followers/ids.json?cursor=-1&screen_name=username

And I am getting this error message in response.

{     code = 215;     message = "Bad Authentication data"; } 

I can't seem to find the documentation related to this error code. Anyone has any idea about this error?

Answer 1

A very concise code without any other php file include of oauth etc. Please note to obtain following keys you need to sign up with https://dev.twitter.com and create application.

<?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/statuses/user_timeline.json'; // api call path  $query = array( // query parameters     'screen_name' => 'twitterapi',     'count' => '5' );  $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' );  $oauth = array_map("rawurlencode", $oauth); // must be encoded before sorting $query = array_map("rawurlencode", $query);  $arr = array_merge($oauth, $query); // combine the values THEN sort  asort($arr); // secondary sort (value) ksort($arr); // primary sort (key)  // http_build_query automatically encodes, but our parameters // are already encoded, and must be by this point, so we undo // the encoding step $querystring = urldecode(http_build_query($arr, '', '&'));  $url = "https://$host$path";  // mash everything together for the text to hash $base_string = $method."&".rawurlencode($url)."&".rawurlencode($querystring);  // same with the key $key = rawurlencode($consumer_secret)."&".rawurlencode($token_secret);  // generate the hash $signature = rawurlencode(base64_encode(hash_hmac('sha1', $base_string, $key, true)));  // this time we're using a normal GET query, and we're only encoding the query params // (without the oauth params) $url .= "?".http_build_query($query); $url=str_replace("&amp;","&",$url); //Patch by @Frewuill  $oauth['oauth_signature'] = $signature; // don't want to abandon all that work! ksort($oauth); // probably not necessary, but twitter's demo does it  // also not necessary, but twitter's demo does this too function add_quotes($str) { return '"'.$str.'"'; } $oauth = array_map("add_quotes", $oauth);  // this is the full value of the Authorization line $auth = "OAuth " . urldecode(http_build_query($oauth, '', ', '));  // if you're doing post, you need to skip the GET building above // and instead supply query parameters to CURLOPT_POSTFIELDS $options = array( CURLOPT_HTTPHEADER => array("Authorization: $auth"),                   //CURLOPT_POSTFIELDS => $postfields,                   CURLOPT_HEADER => false,                   CURLOPT_URL => $url,                   CURLOPT_RETURNTRANSFER => true,                   CURLOPT_SSL_VERIFYPEER => false);  // do our business $feed = curl_init(); curl_setopt_array($feed, $options); $json = curl_exec($feed); curl_close($feed);  $twitter_data = json_decode($json);   foreach ($twitter_data as &$value) {    $tweetout .= preg_replace("/(http:\/\/|(www\.))(([^\s<]{4,68})[^\s<]*)/", '<a href="http://$2$3" target="_blank">$1$2$4</a>', $value->text);    $tweetout = preg_replace("/@(\w+)/", "<a href=\"http://www.twitter.com/\\1\" target=\"_blank\">@\\1</a>", $tweetout);    $tweetout = preg_replace("/#(\w+)/", "<a href=\"http://search.twitter.com/search?q=\\1\" target=\"_blank\">#\\1</a>", $tweetout); }  echo $tweetout;  ?> 

Regards

Answer 2

The only solution I've found so far is:

• Create application in twitter developer panel
• Authorize user with your application (or your application in user account) and save "oauth_token" and "oauth_token_secret" which Twitter gives you. Use TwitterOAuth library for this, it's pretty easy, see examples coming with library.

• Using this tokens you can make authenticated requests on behalf of user. You can do it with the same library.

  // Arguments 1 and 2 - your application static tokens, 2 and 3 - user tokens, received from Twitter during authentification   $connection = new TwitterOAuth(TWITTER_CONSUMER_KEY, TWITTER_CONSUMER_SECRET, $tokens['oauth_token'], $tokens['oauth_token_secret']);   $connection->host = 'https://api.twitter.com/1.1/'; // By default library uses API version 1.   $friendsJson = $connection->get('/friends/ids.json?cursor=-1&user_id=34342323');   

This will return you list of user's friends.