Using only the $http.get method, you can easily retrieve data in a simple

Question

Using only the $http.get method, you can easily retrieve data in a simple

Here is my message from JSP, I am attempting to extract information from the response.

$http.get('url.jsp', data).then(successCallback, errorCallback);

I encountered an issue with "data is not defined"

https://i.sstatic.net/NX60Y.png

Is there a way to fetch just the data?

javascript angularjs json

Answer 1

Answer №1

You seem to be mixing up the request data field with the response data. As stated in the AngularJS $http API:

The request data should be provided for POST/PUT requests, as seen in
$http.post('/someUrl', data, config).then(successCallback, errorCallback);

Instead of focusing on the request data, consider adding a parameter for the response data in your successCallback.

Below is an example code snippet that illustrates this:

$http.get('/categories/graph')
      .then(function successCallback(res) {
         $scope.scopeGraph = res.data;
      }, function errorCallback(err) {
         console.log("Error: " + angular.toJson(err));
      });

In this example, the res variable in the successCallback is used to extract the response data without needing to specify the request data for a get request.

Answer 2

You seem to be mixing up the request data field with the response data. As stated in the AngularJS $http API:

The request data should be provided for POST/PUT requests, as seen in
$http.post('/someUrl', data, config).then(successCallback, errorCallback);

Instead of focusing on the request data, consider adding a parameter for the response data in your successCallback.

Below is an example code snippet that illustrates this:

$http.get('/categories/graph')
      .then(function successCallback(res) {
         $scope.scopeGraph = res.data;
      }, function errorCallback(err) {
         console.log("Error: " + angular.toJson(err));
      });

In this example, the res variable in the successCallback is used to extract the response data without needing to specify the request data for a get request.

Answer 3

Answer №2

Make sure to use the following code syntax when using $http.get, it should work correctly:

$http.get('url.jsp').then(
  // successCallback
  function(successResponse) {
    // You can access the response data like this:
    var data = successResponse.data;        
    console.log(data);
  },
  // error callback
  function(errorResponse) {
    console.log(errorResponse);
  });

For more information, refer to AngularJS documentation:

https://docs.angularjs.org/api/ng/service/$http

Another useful link: https://www.w3schools.com/angular/angular_http.asp

Answer 4

Make sure to use the following code syntax when using $http.get, it should work correctly:

$http.get('url.jsp').then(
  // successCallback
  function(successResponse) {
    // You can access the response data like this:
    var data = successResponse.data;        
    console.log(data);
  },
  // error callback
  function(errorResponse) {
    console.log(errorResponse);
  });

For more information, refer to AngularJS documentation:

https://docs.angularjs.org/api/ng/service/$http

Another useful link: https://www.w3schools.com/angular/angular_http.asp

Using only the $http.get method, you can easily retrieve data in a simple

Answer №1

Answer №2

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