Angular post method

Question

I've created a http method in a service. But when i call it, it returns null and i can't figure out why. Here is the method:

 objectResponse.httpCall = function ( sMethodName, postData){

    var rData = null;

    $http({
        dataType: "json",
        type: "POST",
        method: 'POST', 
        url: sMethodName, 
        data: (typeof postData !== "string") ? JSON.stringify(postData) : postData,
        headers: {'Content-Type': 'application/json'}
    })  
    .success(function(data, status, headers, config) {
        rData = data;
      })
    .error(function(data, status, headers, config) {
        rData = null;
      });

    return rData;
}

Thank you.

Proper design i would suggest is that your method returns a promise and you chain though the promise. $http returns a promise. SO you would do:- return $http(...).then(function(result) { return result.data }, function(){return null}) and use it as .httpCall(..).then(function(data){//do the logic here}) — PSL
– PSL, Commented Aug 20, 2014 at 20:21
What returns null? The service? Or do you mean that your error method is executing? — JeffryHouser
– JeffryHouser, Commented Aug 20, 2014 at 20:35
Take a look at this answer. it well explained.. stackoverflow.com/questions/25415026/… — PSL
– PSL, Commented Aug 20, 2014 at 22:46

tymeJV · Accepted Answer · 2014-08-20 20:19:59Z

2

You can't return from an AJAX call..use a callback:

objectResponse.httpCall = function ( sMethodName, postData, callback){
   ..
   .success(data) {
       callback(data);
}

And pass in the callback:

objectResponse.httpCall(method, data, function(data) {
    console.log(data); //response data
});

answered Aug 20, 2014 at 20:19

tymeJV

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