tweet-matches

Check if a tweet matches a twitter filter. Since the Twitter API allows you only one or a couple connections from on IP at a time, tracking multiple queries to the streaming API at once requires some processing on your end.

This module implements the key part of that post-processing: checking whether a tweet matches a given value for the track parameter of the Twitter streaming API. Twitter's documentation for this parameter is here, and I've backed it up here.

Usage

var tweetMatches = require('tweet-matches');

var track = 'foo,bar bAZ , what is ';
var compiled = tweetMatches.compile(track);
tweetMatches({ text: 'foo' }, compiled); // true
tweetMatches({ text: 'some bAZ and some barrrr' }, compiled); // true
tweetMatches({ text: 'something else what' }, compiled); // false
tweetMatches({
  text: 'bAZ',
  quoted_status: {
    entities: {
      media: [ { display_url: 'bar.com' } ]
    }
  }
}, compiled); // true

With Twit

This module is best used to consume tweet objects from twit.

var track = 'anything, as usual';
var stream = T.stream('statuses/filter', { track: track }
var compiled = tweetMatches.compile(track);
stream.on('tweet', function(tweet) {
  tweetMatches(tweet, compiled); // true
});

Testing

Use test.js to test against the live twitter API. This module intends to implement exactly the logic that Twitter uses to decide which tweets to send to statuses/filter, so this test just compares our output to theirs.

$ node test.js 'value,for the,track parameter'
Connected
Matched 1 tweets
Matched 2 tweets
Matched 3 tweets
...

Of course if tweetMatches decides it's a match when it shouldn't, this won't tell you.

Related projects

• twitter-stream-channels is intended to solve the same problem
• twitter-search-terms