There seems to be a glitch in the angularjs application

This is my code for the Services.js file:

    angular.module('RateRequestApp.services', []).
  factory('rateRequestAPIservice', function($http) {

      var rateRequestApi = {};

      rateRequestApi.getData = function () {
      return $http({
        method: 'Get', 
        url: '../services/getratesws.aspx?fn=parcellookupData'
      });
    }

      return rateRequestApi;
  });

Now, moving on to the Controller.js file:

  angular.module('RateRequestApp.controllers', []).
  controller('ReadOnlyController', function ($scope, rateRequestApIservice) {

      $scope.rateData = [];

      rateRequestApIservice.getDrivers().success(function (response) {
          //Dig into the responde to get the relevant data
          $scope.rateData = response;
      });
  });

In App.js, we have the following code:

    angular.module('RateRequestApp', [
  'RateRequestApp.controllers',
  'RateRequestApp.services'
]);

Lastly, in the HTML, include the following scripts:

    <script src="scripts/Angular/App.js"></script>
<script src="scripts/Angular/Services.js"></script>
<script src="scripts/Angular/Controllers.js"></script>

Although everything appears correct, an error message is displayed:

Error: [$injector:unpr] Unknown provider: rateRequestApIserviceProvider <- rateRequestApIservice

Can someone help identify what may be causing this error?

Answer №1

 angular.module('RateRequestApp', [
    'RateRequestApp.services',
    'RateRequestApp.controllers'   
]);

In order for your app to function correctly, ensure that the services are loaded before the controllers in your app.js!

A typo was found in your controller code:

controller('ReadOnlyController', function ($scope, rateRequestApIservice) {
rateRequestApIservice <-- incorrect

You may want to consider using a simpler name!

rateRequestApIservice.getDrivers()

The specified function does not exist within your service.

I recommend organizing your service code as shown below to enhance readability and understanding:

angular.module('rateRequestApp.services', []).
    factory('rateRequestService', ['$http', rateRequestService]);

function rateRequestService($http) {
    var service = {
        getData: getData
    };

    return service;

    function getData() {
        return $http({
            method: 'Get', 
            url: '../services/getratesws.aspx?fn=parcellookupData'
        });
    }
}

By breaking down your code into sections like this, it becomes easier to grasp the purpose of each part when revisiting it later on.

angular.module('rateRequestApp.services', []).
    factory('rateRequestService', ['$http', rateRequestService]);

Utilizing dependency injection helps you understand the requirements of your service right from the start.

var service = {
    getData: getData
};

return service;

This structure clearly presents the available functions within your service without needing to dive deep into the code.

Adopting consistent naming conventions, such as camel casing, can prevent errors and improve the overall quality of your code.

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