How do I POST urlencoded form data with $http with

Question

I am new to AngularJS, and for a start, I thought to develop a new application using only AngularJS.

I am trying to make an AJAX call to the server side, using $http from my Angular App.

For sending the parameters, I tried the following:

$http({
    method: "post",
    url: URL,
    headers: {'Content-Type': 'application/x-www-form-urlencoded'},
    data: $.param({username: $scope.userName, password: $scope.password})
}).success(function(result){
    console.log(result);
});

This is working, but it is using jQuery as well at $.param. For removing the dependency on jQuery, I tried:

data: {username: $scope.userName, password: $scope.password}

but this seemed to fail. Then I tried params:

params: {username: $scope.userName, password: $scope.password}

but this also seemed to fail. Then I tried JSON.stringify:

data: JSON.stringify({username: $scope.userName, password: $scope.password})

I found these possible answers to my quest, but was unsuccessful. Am I doing something wrong? I am sure, AngularJS would provide this functionality, but how?

Answer 1

If it is a form try changing the header to:

headers[ "Content-type" ] = "application/x-www-form-urlencoded; charset=utf-8";

and if it is not a form and a simple json then try this header:

headers[ "Content-type" ] = "application/json";

Answer 2

The problem is the JSON string format, You can use a simple URL string in data:

$http({
    method: 'POST',
    url: url,
    headers: {'Content-Type': 'application/x-www-form-urlencoded'},
    data: 'username='+$scope.userName+'&password='+$scope.password
}).success(function () {});

Answer 3

$http({

    method: "POST",
    url: "/server.php",
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    data: "name='Олег'&age='28'",


}).success(function(data, status) {
    console.log(data);
    console.log(status);
});

Answer 4

Here is the way it should be (and please no backend changes ... certainly not ... if your front stack does not support application/x-www-form-urlencoded, then throw it away ... hopefully AngularJS does !

$http({
     method: 'POST',
     url: 'api_endpoint',
     headers: {'Content-Type': 'application/x-www-form-urlencoded'},
     data: 'username='+$scope.username+'&password='+$scope.password
 }).then(function(response) {
    // on success
 }, function(response) {
    // on error
 });

Works like a charm with AngularJS 1.5

People, let give u some advice:

• use promises .then(success, error) when dealing with $http, forget about .sucess and .error callbacks (as they are being deprecated)

• From the angularjs site here "You can no longer use the JSON_CALLBACK string as a placeholder for specifying where the callback parameter value should go."

If your data model is more complex that just a username and a password, you can still do that (as suggested above)

$http({
     method: 'POST',
     url: 'api_endpoint',
     headers: {'Content-Type': 'application/x-www-form-urlencoded'},
     data: json_formatted_data,
     transformRequest: function(data, headers) {
          return transform_json_to_urlcoded(data); // iterate over fields and chain key=value separated with &, using encodeURIComponent javascript function
     }
}).then(function(response) {
  // on succes
}, function(response) {
  // on error
});

Document for the encodeURIComponent can be found here

Answer 5

you need to post plain javascript object, nothing else

           var request = $http({
                method: "post",
                url: "process.cfm",
                transformRequest: transformRequestAsFormPost,
                data: { id: 4, name: "Kim" }
            });

            request.success(
                function( data ) {
                    $scope.localData = data;
                }
            );

if you have php as back-end then you will need to do some more modification.. checkout this link for fixing php server side