PostAsync() method is not working in dot-net core window service

Question

I am trying the run the console application as a window service in dot-net core and able to create ,start ,stop and delete the service.
I am using PostAsync() method in application but the issue is that this method is working perfectly in console application but in window service most of the times PostAsync() never returned any response.

Any help would be highly appreciated. Thanks!

string abc=\"firstparameter\":\"English\",\"secondParameter\":\"Hindi\",\"Marks\":\"Result \"}";
var response = await client.PostAsync("url", new StringContent(ab, Encoding.UTF8, "application/json")).ConfigureAwait(false))

and By this way

var response = client.PostAsync("url", content).Result;
var objResult = response.Content.ReadAsStringAsync().Result;

First of all, never use `.Result`. This also implies you are not calling this method correctly in the first place. Are you `await`ing all the way up the call chain? — DavidG, Aug 28 '19 at 10:06
Hi @DavidG I am aware of that and I have also used await but it didn't work for me as well. — Jagjit Saini, Aug 28 '19 at 12:14

score 0 · Answer 1 · edited Sep 26 '20 at 14:58

0

Here is an example of how you can use it. In this example I have used HttpClientFactory to create a HttpClient.

var userApi = httpClientFactory.CreateClient("UserApi");
var request = new HttpRequestMessage(HttpMethod.Post, "systemuser/login");
request.Content = new StringContent(JsonConvert.SerializeObject(loginRequest), Encoding.UTF8, "application/json");

var response = await userApi.SendAsync(request);

if (response.StatusCode == System.Net.HttpStatusCode.OK)
{
    var body = await response.Content.ReadAsAsync<LoginResponse>();
    return Ok(body);
}
return StatusCode((int)response.StatusCode);

Hope this helps

edited Sep 26 '20 at 14:58

Ciarán Bruen

5,221
13
59
69

answered Aug 28 '19 at 10:04

Burim Hajrizaj

383
4
14

we can not use the dot net core application exe directly in our service. So I changed the approach Just created the window service application with exe and then used this service exe further in my another service .It solved my problem Thanks!! – Jagjit Saini Mar 31 '21 at 09:30

score 0 · Answer 2 · answered Mar 12 '20 at 18:19

I know this is a late response but just in case this could help someone here is my answer.

StringContent is not a good option when doing Post. You may want to use FormUrlEncodedContent:

var data = new Dictionary<string, string>
{
    { "firstparameter", "firstparametervalue" },
    { "secondparameter", "secondparametervalue" }
};

var content = new FormUrlEncodedContent(data);

var response = await client.PostAsync(apiUri, content);

PostAsync() method is not working in dot-net core window service

2 Answers2