title: How to check if someone retweeted a tweet
body: <p>I need to check if a user did in fact retweeted a tweet I asked him to. The user already has connected his twitter account with my application. </p>
  
  <p>To check whether or not a user has  retweeted I'm using the api call <a href="http://api.twitter.com/1/statuses/" rel="nofollow">http://api.twitter.com/1/statuses/</a>{id}/retweeted_by.json, which returns the first 100 users that retweeted the tweet with id {id}. </p>
  
  <p>The problem is that I have to go through the 100 users, and the given user might not even be in the results, so I have to call the api again to get the next 100 users. This is costly and I want to know if there is an api call that can answer me this question, in a single call, with a single result.</p>
  
  <p>Thanks!</p>