The browser has the ability to execute scripts prior to processing any post requests

When it comes to handling post requests, browsers have the ability to process scripts. Imagine you have the following scenario:

if (some true condition) {
   console.log("ready to post")
   restangular.all.post(RequestData).then(function(response){
      //some post methods
      console.log("response")
   });       
}
//followed by other scripts
cosole.log('Hello')
....

Desired Output:

The desired output should be:

  1. ready to post
  2. Hello
  3. response

In this case, how can you ensure that the POST request is completed before printing "Hello"? Any solutions?

Answer №1

If you're aiming to achieve your desired outcome, it's crucial to delve into the world of angularJS promises, particularly since the POST request operates asynchronously. Be sure to refer to this resource for more insights: http://www.webdeasy.com/javascript-promises-and-angularjs-q-service/

The key concept revolves around initiating a call that yields a deferred object as an initial step, resembling something along these lines:

this.myFunction = function (myForm) {
    var deferred = $q.defer();
    $http.post(myURL, myForm)
        .success(function (data) {
            //resolve the promise
            deferred.resolve('SUCCESS');
        })
        .error(function (data) {
            //reject the promise
            deferred.reject('ERROR');
        });

    //return the promise
    return deferred.promise;
}

Subsequently, execute the call in this manner:

    var myPromise = this.myFunction ($scope.modalForm);
    // await the resolution or rejection of the promise
    //"then" encompasses 2 functions (resolveFunction, rejectFunction)
    myPromise.then(function(resolve){
       // conduct operations here, confirming the completion of the post request
    }, function(reject){
        return;
    });

Alternatively, any actions you wish to take after the POST request can be embedded within the success function of the request.

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