Promises in Angular.JS

By using Promises we can execute a function asynchronously. we can use promises to specify what to do when a operation is success or failed. We have $q built in keyword in angular js for promises. let’s create a example :

  1. .service(‘drawHomeCardService’, function(apiCallFactory, $q) {
  2. this.getTheLogo = function() {
  3. var deferred = $q.defer();
  4. apiCallFactory.getData().success(function(response) {
  5. var logo = response[2].businessInfo.logoFilePath;
  6. var logoFilePath = ‘https://oyokeydev.s3.amazonaws.com/' + logo;
  7. deferred.resolve(logoFilePath);
  8. }).error(function(response) {
  9. console.log(‘Something went wrong’);
  10. deferred.reject(‘Something went wrong’);

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