angular js - Return promise instead data object

Question

im working with angular.

In my service.js I'm trying to return some values but instead data I get the promise item with some $$variables & the data Im looking for.

Problem is I can't work with data since it's a promise. How can I get only the data object?

function loadLinks(respuesta,link) {
  return SpringDataRestAdapter.process(respuesta, link)
    .then(function (results) {
      return results;
    });
}

Im using Spring Data Rest. I copied this from another service which was working, but this one is not working well.

Any help?

Thanks you!

How about returning results.data or whatever the property may be called? — Ben Kauer
– Ben Kauer, Commented Nov 19, 2015 at 8:24

devqon · Accepted Answer · 2015-11-19 08:30:37Z

2

If you don't do any additional logic, you can just return the function which already is a promise:

function loadLinks(respuesta,link) {
    return SpringDataRestAdapter.process(respuesta, link);
}

And where you use it:

myService.loadLinks(respuesta, link).then(function(result) {
    $scope.results = result;
}, function() {
    // fail
});;

If you do want to have additional logic, you can use the $q service:

function loadLinks(respuesta,link) {
    var deferred = $q.defer();
    SpringDataRestAdapter.process(respuesta, link)
        .then(function (results) {
            // do something more
            console.log(results);
            deferred.resolve(results);
        }, function (error) {
            deferred.reject();
        });;

    return deferred.promise;
}

edited Nov 19, 2015 at 8:30

answered Nov 19, 2015 at 8:24

devqon

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7 Comments

Baumannzone Over a year ago

I think I used it without success. Let me check it!

Ben Kauer Over a year ago

SpringDataRestAdapter.process() already returns a promise, why creating another one? Edit: @devqon edited his answer to return the function.

Baumannzone Over a year ago

Seems like yes, @iWörk , because im using .then(). Anyway, not getting the correct answer. Do you know how to "process" it to get only data instead a promise item?

devqon Over a year ago

@JorgeBaumann you do have to use promises, because it is an async call

Ben Kauer Over a year ago

You can't, since it's an asynchronous operation.

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