return data inside function from http post

Question

I want to get data pass from a function, the data successfully return inside the success response. However I can't return the data from the function itself.

function getStatusPublished(dating, product) 
{
    var datas = "";

    var success = function(response, status, headers, config){
      datas = response;
    }

    var error = function(error, status, headers, config){
      datas = "error";
    }

    var cdnss = "htttp://application_ajax";
    $http.post(cdnss+"&pblishDateVacan="+dating+"&ProjectID="+product)
    .success(success).error(error);

    console.log(datas);
}

In the console.log, it just said undefined.

Please help. Thanks.

you cannot return the data from the function. An http call is asynchronous and takes time to get data back. A function is synchronous and returns immediately. You probably want to return a promise from your function. — rob
– rob, Commented Jul 5, 2016 at 15:34
Can you help me, please, how to do this with promise return? — al_kasih_empatix
– al_kasih_empatix, Commented Jul 5, 2016 at 15:36
Alon, I want to return the data from the function itself, not only from the success call. — al_kasih_empatix
– al_kasih_empatix, Commented Jul 5, 2016 at 15:36
There are some good video's on egghead.io for learning how to use promises egghead.io/lessons/angularjs-promises — rob
– rob, Commented Jul 5, 2016 at 15:37

georgeawg · Accepted Answer · 2019-03-11 13:46:46Z

1

The $http.post method returns a promise; not data.

To return a promise, simply use a return statement.

function getStatusPublished(dating, product) {
    var url = "htttp://application_ajax";
    var postData = {};
    var params = {
      pblishDataVacan: dating,
      ProjectId: product
    };
    var config = { params: params };
    var promise = $http.post(url,postData,config);
    //return promise
    return promise;
}

To get the data from the promise, use the .then method:

var promise = getStatusPublished(d, p);

promise.then( function(response) {
    $scope.data = response.data;
    return response.data;
}).catch ( function(response) {
    console.log(response.status);
    throw response;
});

edited Mar 11, 2019 at 13:46

answered Jul 5, 2016 at 20:26

georgeawg

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