Asp net mvc angular after session expires angular factory returns html of lo

ASP.NET is a popular programming used for developing web applications. It provides a powerful framework for building dynamic and interactive websites. One challenge faced by developers is handling session expiration and managing the of the when the session expires.

When a session expires, it means that the user's session data, such as login information or user preferences, is no longer available. This can lead to unexpected behavior in the application, such as errors or loss of data. In the context of an ASP.NET MVC application with , one specific issue that may arise is the return of HTML code instead of the expected data when a session expires.

To address this issue, one possible solution is to use an Angular factory to handle the session expiration and return the appropriate response. An Angular factory is a service that provides a way to create reusable code and data between different parts of an application.

Let's take a look at an example of how this can be implemented in ASP.NET MVC with Angular.

First, we need to define the Angular factory that will handle the session expiration. We can do this by creating a new file called “sessionFactory.js” and the following code:

angular.module('app').factory('sessionFactory', function($http) {
  var factory = {};

  factory.getData = function() {
    return $http.get('/api/data');

  factory.handleSessionExpiration = function(response) {
    if (response.status === 401) {
      // Session expired,  to login page
      .location.href = '/login';
    } else {
      // Handle other errors or unexpected responses
      console.log('Error:', response);

  return factory;

In this example, we define a factory called “sessionFactory” that has a method called “getData” which makes an HTTP GET request to retrieve data from the . We also have a method called “handleSessionExpiration” which is responsible for handling the session expiration.

Now, let's see how we can use this factory in our ASP.NET MVC application. Suppose we have a controller called “DataController” that returns some data from the server. We can modify the controller to handle the session expiration using the “sessionFactory” as follows:

public class DataController : ApiController
  private readonly ISessionFactory _sessionFactory;

  public DataController(ISessionFactory sessionFactory)
    _sessionFactory = sessionFactory;

  public IHttpActionResult GetData()
      var data = _sessionFactory.GetData();
      return Ok(data);
    catch (Exception ex)
      return InternalServerError();

In this example, we inject the “sessionFactory” into the controller using dependency injection. Inside the “GetData” method, we call the “GetData” method of the factory to retrieve the data. If an exception occurs, we catch it and call the “HandleSessionExpiration” method of the factory to handle the session expiration.

By using this approach, we can ensure that the application handles session expiration gracefully and redirects the user to the login page when necessary. It also provides a way to handle other errors or unexpected responses in a centralized manner.

In conclusion, handling session expiration in an ASP.NET MVC application with Angular can be achieved by using an Angular factory to handle the session expiration and return the appropriate response. By following this approach, developers can ensure a smoother user experience and avoid unexpected behavior when the session expires.

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