Pfthb

Hello i am trying to send a Json object using the HttpResponseMessage .
Even though while debugging the data looks like it was inserted in the Content section (104 bytes present) when using Postman when retrieveing the json , in the Content section there is no data,just a header.

JsonResponse

 "version": 
 "major": 1,
 "minor": 1,
 "build": -1,
 "revision": -1,
 "majorRevision": -1,
 "minorRevision": -1
 ,
 "content": 
 "headers": [
 
 "key": "Content-Type",
 "value": [
 "text/plain; charset=utf-8"
 ]
 ////why no data ??
 ]
 ,
 "statusCode": 200,
 "reasonPhrase": "OK",
 "headers": ,
 "requestMessage": null,
 "isSuccessStatusCode": true

As you can see there is no content.I am reusing the same code as in an earlier application and i did not get this problem.Why is the content empty?

Code

private static List<User> users = new List<User> 
 new User Id = 0, Age = 0, Name = "Failed",
 new User Id = 12, Age = 33, Name = "Daniel",
 new User Id = 13, Age = 33, Name = "Marian",
;


[HttpGet]
[Route("/api/getusers")]
public async Task<HttpResponseMessage> GetUsers() 
 await Task.Delay(1000);
 var str = JsonConvert.SerializeObject(users);
 return new HttpResponseMessage 
 StatusCode = HttpStatusCode.OK,
 Content = new StringContent(str, Encoding.UTF8)
 ;

ASP.NET Core does not have built-in support for returning HttpResponseMessage. If you want to return JSON, you can use IActionResult and let ASP.NET Core handle the serialisation for you. Here's an updated example:

public async Task<IActionResult> GetUsers() 
 await Task.Delay(1000);
 return Json(users);

There are more options here, for situations where you want to allow content-negotiation, for example. Here's a version that supports content-negotiation using OkObjectResult:

public async Task<IActionResult> GetUsers() 
 await Task.Delay(1000);
 return Ok(users);

You can even just return users itself if you prefer:

public async Task<List<User>> GetUsers() 
 await Task.Delay(1000);
 return users;

That should be enough to get you started - the official documentation explains things further: Controller action return types in ASP.NET Core Web API.