JWT Bearer Token With .NET Core

Hey Pakeeza, the validation of the JWT token is handled by middleware in the pipeline before the request reaches your controller actions. This means that the authorization logic is usually implemented globally and not directly within each controller method. When a request comes in, the JWT token is validated automatically based on the configuration you've set up in your application startup. If the token is missing or invalid, ASP.NET Core will automatically respond with a 401 Unauthorized status code without reaching your controller methods.

Add JWT Token in the API header request, and when your API will execute at that time in your application first check that token validate and it's successfully validated then on then your will accessible.

In C# side 

request.Headers.Add("Authorization", "Bearer eyJhbGc....");

Thanks amit for the reply , do I need to add any logic in my controller method for checking the token or the consumer need to do this , as I have tested my API methods it gives 401 unauthorized status code if JWT token is not provided. Do I need to add any logic in my controller method to check either user provide the token & if provided then does it valid or it will be automatically done at consumer side.

The way to include the JWT token is by adding it to the Authorization header of the HTTP request as a bearer token. For example:

string apiUrl = "https://yourapi.com/api/resource";
string jwtToken = "your_jwt_token";

using (HttpClient client = new HttpClient())
{
    client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", jwtToken);

    try
    {
        HttpResponseMessage response = await client.GetAsync(apiUrl);
        if (response.IsSuccessStatusCode)
        {
            string responseBody = await response.Content.ReadAsStringAsync();
            Console.WriteLine(responseBody);
        }
        else
        {
            Console.WriteLine($"Failed to call API. Status code: {response.StatusCode}");
        }
    }
    catch (Exception ex)
    {
        Console.WriteLine($"An error occurred: {ex.Message}");
    }
}

add the token in header