AngularJS $http post to non existing url 404 - angularjs

Question

This may be one of these questions that doesn't need much explanation i just didn't found the answer elsewhere.
I'm pretty new to AngularJS and NodeJS. I did some tutorials and now i try to put something together.
In nodeJS when i do something like this:
app.get('/db-get-extra-bookings', function(req, res) {
res.json({name: "hello"});
});
than in AngularJS i can GET that response and do something with that even if /db-insert-extra-bookings is not an fysical page
return $http
.get(formURL)
.then(function(response){
// some code
});
But when i want to post something from out of AngularJS to my NodeJs environment
return $http
.post(formJson, JSON.stringify(bookings))
.then(function(response){
//some code
});
NodeJS:
app.get('/db-insert-extra-bookings', function(req, res) {
// do something with the request
});
I got a 404 error in my webbrowser console.
base.js:5 POST http://localhost:3000/db-insert-extra-bookings 404 (Not Found)
It sounds like normal behaviour, but why am i getting a 404 error when i POST to a non existing page, and why am i getting the data like i want when i GET from a non existing page?
Do i really need to make an empty page to post to?

Answer 1

I'm not a expert in NodeJS, but if you want to create a route that answer any HTTP method you should use app.all() instead of app.get(). In your code you are just creating a route for GET requests, that is why it works for a GET and don't work for a POST. Check out this reference

Answer 2

Just to clarify, NodeJS endpoints (GET included) do not need to serve an HTML page to work. You can send any type of HTTP response, e.g. plain text, JSON, HTML, etc - with the appropriate 'Content-Type' header.
In NodeJS routes:
app.post('/db-get-extra-bookings', function(req, res) {
res.json({name: "hello"});
});
Now in your angular code (You don't need to JSON.stringify):
// Change localhost:9000 with your hostname
$http.post('http://localhost:9000/db-get-extra-bookings', bookings)
.success(function (data, status, headers, config) {
// console.log(data);
})
.error(function (data, status, headers, config) {
// console.log(status);
});
Also, remember to restart your NodeJS server for the changes to take effect.