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Badboy

•Created by Badboy on 3/25/2024 in #help

✅ MAUI on Android - problem with HttpClient Post Method

Hello guys, i am creating this post after more than week of learning and trying to solve it by myself. I have problem with reaching my WebApi with Post Method. There is no problem with Get Method. The error i'm getting is: System.ObjectDisposedException: 'Cannot access a closed Stream.' Which makes literally 0 sense for me. (i dislike that C# took away from us destructors and that may be consequence of it ?) Here is code

     public static HttpClientHandler GetInsecureHandler()
     {
         HttpClientHandler handler = new HttpClientHandler();
         handler.ServerCertificateCustomValidationCallback = (message, cert, chain, errors) =>
         {
             if (cert.Issuer.Equals("CN=localhost"))
                 return true;
             return errors == System.Net.Security.SslPolicyErrors.None;
         };
         return handler;
     }


 
 private async Task<int> ConnectToApi_NotWorking()
 {
     HttpClientHandler insecureHandler = GetInsecureHandler();
     HttpClient client = new HttpClient(insecureHandler);
     client.Timeout = TimeSpan.FromSeconds(10);
     HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, $"http://192.168.0.175:5297/api/Login");

     request.Headers.Add("accept", "application/json");

     request.Content = new StringContent("{\n\"login\":\"a\",\n\"password\":\"a\"\n}");
     request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");

     HttpResponseMessage response = await client.SendAsync(request);
     response.EnsureSuccessStatusCode();
     string responseBody = await response.Content.ReadAsStringAsync();
     await DisplayAlert("AA", responseBody.ToString(), "ok");
     return 0;
 }

     public static HttpClientHandler GetInsecureHandler()
     {
         HttpClientHandler handler = new HttpClientHandler();
         handler.ServerCertificateCustomValidationCallback = (message, cert, chain, errors) =>
         {
             if (cert.Issuer.Equals("CN=localhost"))
                 return true;
             return errors == System.Net.Security.SslPolicyErrors.None;
         };
         return handler;
     }


 
 private async Task<int> ConnectToApi_NotWorking()
 {
     HttpClientHandler insecureHandler = GetInsecureHandler();
     HttpClient client = new HttpClient(insecureHandler);
     client.Timeout = TimeSpan.FromSeconds(10);
     HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, $"http://192.168.0.175:5297/api/Login");

     request.Headers.Add("accept", "application/json");

     request.Content = new StringContent("{\n\"login\":\"a\",\n\"password\":\"a\"\n}");
     request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");

     HttpResponseMessage response = await client.SendAsync(request);
     response.EnsureSuccessStatusCode();
     string responseBody = await response.Content.ReadAsStringAsync();
     await DisplayAlert("AA", responseBody.ToString(), "ok");
     return 0;
 }

I will add full git project if needed. There is no problem with implementation of Login in API (tested with same code run on Windows and using Postman)

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