Revision: 63716
Initial Code
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at June 1, 2013 04:54 by redhatmatt
Initial Code
var express = require('express'),
app = express(),
redis = require('redis'),
client = redis.createClient(),
QRCode = require('qrcode');
app.use(express.bodyParser());
app.post('/new', function(req, res){
if(req.body.url){
var url_id = new Buffer(req.body.url).toString('base64');
client.keys(url_id,function(err,keys) {
if (err) res.send({'message':'Internal Server Error'},500);
if (keys.length != 0){
res.send({'message':'Conflict','keys':keys},409);
}
else {
client.set(url_id, req.body.url,function(err,status){
if (err) res.send({'message':'Internal Server Error'},500);
else {
QRCode.toDataURL('http://localhost:3000/go/'+url_id,function(err,dataURL){
var response = {
qrcode : dataURL
};
response[url_id] = req.body.url;
res.send(response,200)
});
};
});
}
});
}
else {
res.send(400)
}
});
app.get('/go/:hash',function(req,res){
if(req.params.hash){
client.exists(req.params.hash, function (err, doesExist) {
if (doesExist == false) {
res.send({'message':'Not Found'},404);
};
if (doesExist == true) {
client.get(req.params.hash,function(err,url) {
if (err) res.send({'message':'Internal Server Error'},500);
else {
res.redirect(url.toString(), 301);
}
})
}
});
}
else{
res.send(404)
}
});
app.listen(3000);
console.log('Listening on port 3000');
Initial URL
Initial Description
It currently uses redis as a store for the data. The url's are pretty long since it's all base64 encoded data and the images are returned as base64 encoded PNG's but that can be solved pretty easily. This could be used a service for something kind of authentication front end, drupal
Initial Title
node.js_url_shortener_w_qr_code_generation_api/service by Matt Grill
Initial Tags
javascript, api, service
Initial Language
JavaScript