Node.js: CORS/JSONP RESTful-API service
Blogs20142014-04-22
Node.js: Node.js: CORS/JSONP RESTful-API service
I setup a testing server âdummy_domainâ as a CORS-based RESTful-API server to provide general data.
- Setup a node.js expressjs server
- Setup a MongoDB daemon with the server to provide/remain data
- Configure th server to support CORS/JSONP, RESTful-API service
- Test to allow access from other domains (anywhere to call JSONP-Restful APIs)
The following are steps: In expressjsâs âapp.jsâ file, adding the following at the bottom:
server.listen(8999);
app.all('*', function(req, res, next) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "X-Requested-With");
next();
});
app.get('/api/cors', function (req, res, next) {
res.sendfile(__dirname + '/index.html');
});
app.post('/api/cors', function (req, res, next) {
console.log(req.body);
//res.json({ user: req.body });
res.jsonp({ user: req.body });
});
app.get('/api/cors/:id?', function(req, res, next) {
if(req.params.id) {
res.send(200, {id: req.params.id });
}
else {
res.send(500, 'No params Id');
}
});The above is the server-side settings, very simple. The following are clientâs side to call âdummy_domain:8999â JSONP RESTful-API service:
//1. in other node.js server (server-call-server):
app.get('http://dummy_domain:8999/api/cors', function(req, res) {
console.log(req, res);
});
app.get('http://dummy_domain:8999/api/cors/123', function(req, res) {
console.log(req.params, req.query);
res.send(req.params.id);
});
//2. from jQuery:
$.ajax({
url: 'http://dummy_domain:8999/api/cors',
data: {id: 123},
type: 'GET',
dataType: 'jsonp',
crossDomain: true,
success: function(data) {
console.log(data);
}
});
$.ajax({
url: 'http://dummy_domain:8999/api/cors',
type: 'POST',
dataType: 'jsonp',
crossDomain: true,
success: function(data) {
console.log(data);
}
});
// or call from Backbone's collection/model, or from Angularjs $resource.It works fine, can be put to heroku to provide cloud service. A very helpful website is enable cross-origin resource sharing for reference.