C# .NET web api return from post request

Question

I am making a POST request to a route which is returning JSON data.

[HttpPost("api/v1/testGetAll")]
public object Test([FromBody]object filteringOptions)
{
    return myService.GetLogs(filteringOptions).ToArray();
}

Route works fine, filtering works fine, and when I test the route in Postman I get the right response. However this is only a back-end, and I would like to invoke this route from my custom API gateway.

The issue I'm facing is getting that exact response back. Instead I am getting success status, headers, version, request message etc.

public object TestGetAll(string ApiRoute, T json)
{
    Task<HttpResponseMessage> response;
    var url = ApiHome + ApiRoute;
    using (var client = new HttpClient())
    {
        client.BaseAddress = new Uri(url);
        client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
        try
        {
            response = client.PostAsync(url, new StringContent(json.ToString(), Encoding.UTF8, "application/json"));

            return response.Result;
        }
        catch (Exception e)
        {
            ...
        }
    }
}

How can I get exact content back?

Tom · Accepted Answer · 2017-06-06 10:58:27Z

8

You need to read the content from response.

var contentString = response.Result.Content.ReadAsStringAsync().Result;

If you wish, you can then deserialize the string response into the object you want returning.

public async Task<TResult> TestGetAll<TResult>(string apiRoute, string json)
{
    // For simplicity I've left out the using, but assume it in your code.

    var response = await client.PostAsJsonAsync(url, json);

    var resultString = await response.Content.ReadAsStringAsync();

    var result = JsonConvert.DeserializeObject<TResult>(resultString);

    return result;
}

edited Jun 6, 2017 at 10:58

answered Jun 6, 2017 at 10:53

Tom

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1 Comment

Mark Over a year ago

I know this Is old but the light gray stating the using is left out makes it harder for some of us. I upvoted though because it helped :) .. alot

Souvik Ghosh · Accepted Answer · 2017-06-06 10:47:57Z

2

You have to return the response as an HttpResponseMessage.

Try changing your return statement to

[HttpPost("api/v1/testGetAll")]
public IHttpActionResult Test([FromBody]object filteringOptions)
{
    return Ok(myService.GetLogs(filteringOptions).ToArray());
}

Please note: This will return the response with status code 200. In case you want to handle the response based on different response code. You can create the HttpResponseMessage like this-

Request.CreateResponse<T>(HttpStatusCode.OK, someObject); //success, code- 200
Request.CreateResponse<T>(HttpStatusCode.NotFound, someObject); //error, code- 404

T is your object type.

And so on...

edited Jun 6, 2017 at 10:47

answered Jun 6, 2017 at 10:39

Souvik Ghosh

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2 Comments

Norgul Over a year ago

You mean IActionResult ? If so, it returns the same

Souvik Ghosh Over a year ago

Did you deserialize the response back to Array? Also show the content that you are getting in Postman.

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