Java.Net.SocketException: Software caused connection abort

Question

Good Day All

i have the following code and it randomly gives an error on Android 11

Java.Net.SocketException: Software caused connection abort

, not all the time , App Centre Reported it twice

public async Task<List<USERS>> Get_All_Customers( )
          {

              List<USERS> results = null;
              try
              {
                  USERS m_model = new USERS
                  {
                      USER_ID = 1,
                      CURRENT_DATETIME = '2021/07/01'
                  };
                  var httpClient = new HttpClient();

                  httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));


                  var Json = JsonConvert.SerializeObject(m_model, new JsonSerializerSettings
                  {
                      ContractResolver = new DefaultContractResolver
                      {
                          IgnoreSerializableAttribute = false
                      }
                  });


                  HttpContent httpContent = new StringContent(Json, Encoding.UTF8, "application/json");
                  httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/json; charset=utf-8");

                  var response = await Task.Run(() => httpClient.PostAsync(string.Format("https://www.myserver.com/api/MainCustomers_OnlineDates/Get_All_Customers"), httpContent));

                  if (response.StatusCode == System.Net.HttpStatusCode.OK)
                  {
                      var content = await response.Content.ReadAsStringAsync();
                      results = JsonConvert.DeserializeObject<List<USERS>>(content);
                  }
              }
              catch (Exception ex)
              {
                  await Task.Run(() => Crashes.TrackError(ex));
              }

              return results;
          }

Thanks

Answer 1

Thanks for the reply. This might have been reported via AppCentre i presume there is no issue there , the issue might be related Xamarin , Android and .net api

Answer 2

Thank you , i have made changes to the code .

1. Created a Static variable for the httpClient that can be used by other functions like this

   static readonly HttpClient httpClient = new HttpClient();
   

2. and have changed the code by removing the recreation of the variable and also removed Task.Run and my function looks like this

   public async Task<List<USERS>> Get_All_Customers( )
           {
   
               List<USERS> results = null;
               try
               {
                   USERS m_model = new USERS
                   {
                       USER_ID = 1,
                       CURRENT_DATETIME = '2021/07/01'
                   };
                   var httpClient = new HttpClient();
   
                   httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
   
   
                   var Json = JsonConvert.SerializeObject(m_model, new JsonSerializerSettings
                   {
                       ContractResolver = new DefaultContractResolver
                       {
                           IgnoreSerializableAttribute = false
                       }
                   });
   
   
                   HttpContent httpContent = new StringContent(Json, Encoding.UTF8, "application/json");
                   httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/json; charset=utf-8");
   
   var response =  await httpClient.PostAsync(string.Format("https://www.myserver.com/api/MainCustomers_OnlineDates/Get_All_Customers"), httpContent);
   
                   if (response.StatusCode == System.Net.HttpStatusCode.OK)
                   {
                       var content = await response.Content.ReadAsStringAsync();
                       results = JsonConvert.DeserializeObject<List<USERS>>(content);
                   }
               }
               catch (Exception ex)
               {
                   await Task.Run(() => Crashes.TrackError(ex));
               }
   
               return results;
           }
   

you can ignore the date part , just for an example. i will wait and see there is no reports of the same issues