Restangular POST not passing data parameters - ruby-on-rails

Question

I'm new to using restangular. With that said, I have the below POST call which for some reason is not working as expected.
Restangular.all("user").all("login").post({username: 'test#user.com', password: 'xyz'}).then(function(account)
{
console.log(account);
});
I see the POST request going out to the url /api/v1/user/login which is the correct url. However, the post parameters don't appear to be getting passed. Looking at that same POST request I don't see the username/password data. In addition, my API is throwing an unauthorized error which says to me it is unable to validate the user based on credentials.
I have also tried variants as follows...
Restangular.one("user").post("login", {username: 'test#user.com', password: 'xyz'}).then(function(account)
{
console.log(account);
})
Still the post data doesn't appear to be getting sent. I have also tried...
Restangular.all("user").post("login", {username: 'test#user.com', password: 'xyz'}).then(function(account)
{
console.log(account);
})
That appears to create an incorrect url /api/v1/user and no post data is still not visible.
I can perform cURL POST requests to /api/v1/user/login passing in the POST data without issue.
cURL -X POST /api/v1/user/login -d "username=test#user.com&password=xyz"
I also updated my curl statement as #David suggested in his answer to...
curl -X POST -d '{"username": "test#user.com", "password": "xyz"}' '/api/v1/user/login' -H Content-Type:application/json
Which still worked. However, posting with restangular doesn't...
Restangular.all("user").post("login", {username: 'test#user.com', password: 'xyz'}).then(function(account)
{
console.log(account);
})
Additional ideas?

Answer 1

I'm not an expert in Restangular but it seems .all() creates a full set of REST APIs for an object. In this case I think you only want to call .all() on "user" and use login as a subresource.
var users = Restangular.all("user");
users.post('login', {
username: 'test#user.com',
password: 'xyz'
}).then(...);
Also you need to make sure your server actually has a POST /users/login endpoint.

Answer 2

I see that's one year old question but anyway. I have faced the same issue and I bielive I found solution for this problem. The all thing is in Restangular.setRequestInterceptor event. So if you have a such interceptor in your code then you need to be sure that it returns accepted element parameter after your required actions was made. For example that's what I had before:
Restangular.setRequestInterceptor(function () {
$rootScope.validationErrors = [];
activeRequests++;
$rootScope.loading = true;
})
And that's what should be done with it:
Restangular.setRequestInterceptor(function (element, operation, what, url) {
$rootScope.validationErrors = [];
activeRequests++;
$rootScope.loading = true;
return element;
})

Answer 3

You are sending incorrectly the post params, you have:
Restangular.all("user").all("login")
.post({username: 'test#user.com', password: 'xyz'})
.then(function(account) {
console.log(account);
});
So, you need to make a little change and it will be works (send body params correctly):
Restangular.all("user").all("login")
.post('', {username: 'test#user.com', password: 'xyz'})
.then(function(account) {
console.log(account);
});
Note: I tried it on restangular v1.5.2
Good luck!