feat(EConnectClient): add PostAsync method without body

src/Leanetec.EConnect.Infrastructure/EConnectClient.cs

@@ -88,4 +88,37 @@ public class EConnectClient<TError> : IEConnectClient<TError> where TError :  cl
             };
         }
     }
+
+    public async Task<Response<TData, TError>> PostAsync<TData>(string? route = null, object? queryParams = null, CancellationToken cancel = default)
+        where TData : class
+    {
+        // add global query strings
+        if (_options.DefaultQueryStrings is not null)
+            route = route.AddQueryString(_options.DefaultQueryStrings);
+
+        // add query strings
+        if (queryParams is not null)
+            route = route.AddQueryString(queryParams.ToPropertyDictionary());
+
+        var res = await Http.PostAsync(route, null, cancel);
+
+        if (res.IsSuccessStatusCode)
+        {
+            return new()
+            {
+                Ok = true,
+                StatusCode = res.StatusCode
+            };
+        }
+        else
+        {
+            var error = await res.Content.ReadFromJsonAsync<TError>(_options.JsonSerializerOptions, cancel);
+            return new()
+            {
+                Ok = false,
+                StatusCode = res.StatusCode,
+                Error = error
+            };
+        }
+    }
 }