Created
April 11, 2014 19:13
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var express = require('express'); | |
var app = express(); | |
var Twit = require("twit"); | |
var Q = require('q'); | |
var request = require("request"); | |
var EMBEDLY_KEY = '8c394ac3008745d48fe82133e6acc577'; | |
app.use(express.logger()); | |
//makes embedly request, send accepted URLs | |
var summarize = function(url) { | |
var deferred = Q.defer(); | |
request("https://api.embed.ly/1/extract", { | |
qs: {url: url, key: EMBEDLY_KEY} | |
}, function(error, response, body) { | |
if (!error && response.statusCode == 200) { | |
deferred.resolve(JSON.parse(body)); | |
} else { | |
deferred.reject(error); | |
} | |
}); | |
return deferred.promise; | |
}; | |
app.get('/lookup', function(request, response) { | |
var T = new Twit({ | |
consumer_key: 'i7lsLu4dOv66EEDzCWEifyoXd', | |
consumer_secret: '3I7NQsQsjQpCsadhN8t1Ry9Xb3oglUsDTzME6Cc0EGLvrVmZQB', | |
access_token: '1067293915-gXahWnpOxPZydxkzAO4YzWNfhaSkZp8Nz6KfW4L', | |
access_token_secret: '1e8Y0rCaLlz9SkdlIqBuMsBbEJvDY1SUb9ZClh6WNkmim', | |
}); | |
var tweets = []; | |
var urls = []; | |
var urlPattern = /(http|ftp|https):\/\/[\w-]+(\.[\w-]+)+([\w.,@?^=%&:\/~+#-]*[\w@?^=%&\/~+#-])?/ | |
T.get('statuses/user_timeline', { 'screen_name' : request.query.username, 'count': 20 }, function(err, reply) { | |
for (i in reply){ | |
tweet = reply[i].text; | |
if (urlPattern.test(tweet)){ | |
tweets.push(tweet); | |
var urlRegex = /(https?:\/\/[^\s]+)/g; | |
tweet.replace(urlRegex, function(tweet) { | |
console.log("heres a URL",tweet) | |
urls.push(tweet); | |
}) | |
} | |
} | |
var summaryPromises = urls.map(function(url) { | |
return summarize(url); | |
}); | |
Q.allSettled(summaryPromises).then(function(results) { | |
var acceptedSummaries = results.filter(function(result) { | |
return result.state == 'fulfilled'; | |
}).map(function(result) { | |
return result.value; | |
}).filter(function(summary) { | |
//omits URLs from picture sites | |
return !(/twitpic|imgur|instagra|status/.test(summary.url) && summary.description == null); | |
}).map(function(summary) { | |
return { | |
url: summary.url, | |
title: summary.title, | |
image: summary.images[0].url, | |
description: summary.description | |
} | |
}); | |
console.log('summary Results', acceptedSummaries); | |
if (request.query.callback){ | |
var json = JSON.stringify(acceptedSummaries); | |
response.send(request.query.callback+'('+json+')'); | |
} else { | |
response.send(acceptedSummaries); | |
} | |
}); | |
}); | |
}); | |
app.get('/', function(request, response) { | |
response.send('Hello World!'); | |
}); | |
var port = process.env.PORT || 5000; | |
app.listen(port, function() { | |
console.log("Listening on " + port); | |
}); |
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