Gist to mine all reddits from Reddit.com for node.js and MongoDb. Complies with reddit policy 1 request per 2 seconds.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
var mongo = require('mongodb'), | |
Server = mongo.Server, | |
Db = mongo.Db; | |
http = require('http'), | |
var server = new Server('localhost', 27017, {auto_reconnect: true}), | |
db = new Db('redditDb', server), | |
options = { | |
host: 'www.reddit.com', | |
path: '/reddits.json' | |
}, | |
makeRequest = function(options){ | |
var callback = function(response) { | |
var str = ''; | |
response.on('data', function (chunk) { | |
str += chunk; | |
}); | |
response.on('end', function () { | |
try { | |
var result = JSON.parse(str), | |
childData = result && result.data && result.data.children; | |
if(childData) { | |
db.collection('reddits', function(err, collection) { | |
for(var i = 0; i < childData.length; ++i){ | |
collection.insert(childData[i].data, {safe:true}, function(err, result) { | |
if (!err) { | |
console.log('Child inserted') | |
} else { | |
console.log('Failed to insert child'); | |
} | |
}); | |
} | |
}); | |
} | |
var after = result && result.data && result.data.after; | |
if (after) { | |
options.path = '/reddits.json?after=' + result.data.after; | |
setTimeout(function(){ | |
makeRequest(options); | |
}, 2000); | |
} else { | |
console.log('After is not defined'); | |
} | |
} catch(e) { | |
console.log(e); | |
console.log('Failed to process response') | |
} | |
}); | |
}; | |
console.log('Requesting ' + options.path); | |
http.request(options, callback).end(); | |
}; | |
db.open(function(err, db) { | |
if(!err) { | |
console.log("We are connected. Collecting data"); | |
makeRequest(options); | |
} | |
}); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment