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Versioned API routing example
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var express = require('express'); | |
var http = require('http'); | |
var app = express(); | |
// Simple user controller implementation. | |
var users = [ | |
{ username: 'jamsesso', age: 20, gender: 'M' }, | |
{ username: 'bettycrocker', age: 20, gender: 'F' } | |
]; | |
// Version 1 (Old) | |
function findUser(req, res) { | |
res.json(users[req.params.id]); | |
} | |
// Version 2 (New & improved) | |
function findUser2(req, res) { | |
if(!users.hasOwnProperty(req.params.id)) { | |
res.send(404); | |
} | |
else { | |
res.json(users[req.params.id]); | |
} | |
} | |
// Set up the routing. | |
var v1 = express.Router(); | |
var v2 = express.Router(); | |
v1.use('/user', express.Router() | |
.get('/:id', findUser)); | |
v2.use('/user', express.Router() | |
.get('/:id', findUser2)); | |
app.use('/v1', v1); | |
app.use('/v2', v2); | |
app.use('/', v2); // Set the default version to latest. | |
// Setup server. | |
http.createServer(app).listen(8081, function () { | |
console.log('Magic is happening on port 8081'); | |
}); |
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