finished refactoring and README.md rewrite

MalwareMultiScan.Api/Services/ScanResultJob.cs

@@ -6,7 +6,6 @@ using System.Threading;
 using System.Threading.Tasks;
 using Hangfire;
 using Hangfire.States;
-using MalwareMultiScan.Api.Data;
 using MalwareMultiScan.Api.Services.Interfaces;
 using MalwareMultiScan.Shared.Message;
 using MalwareMultiScan.Shared.Services.Interfaces;
@@ -14,6 +13,9 @@ using Microsoft.Extensions.Logging;
 
 namespace MalwareMultiScan.Api.Services
 {
+    /// <summary>
+    /// Job for storing scan results.
+    /// </summary>
     public class ScanResultJob : IScanResultJob
     {
         private readonly IBackgroundJobClient _backgroundJobClient;
@@ -21,6 +23,13 @@ namespace MalwareMultiScan.Api.Services
         private readonly ILogger<ScanResultJob> _logger;
         private readonly IScanResultService _scanResultService;
 
+        /// <summary>
+        /// Initialize scan result storing job.
+        /// </summary>
+        /// <param name="logger">Logger.</param>
+        /// <param name="httpClientFactory">HTTP client factory.</param>
+        /// <param name="scanResultService">Scan result service.</param>
+        /// <param name="backgroundJobClient">Background job client.</param>
         public ScanResultJob(
             ILogger<ScanResultJob> logger,
             IHttpClientFactory httpClientFactory,
@@ -48,14 +57,15 @@ namespace MalwareMultiScan.Api.Services
                 return;
 
             _backgroundJobClient.Create<IScanResultJob>(
-                x => x.Notify(scanResult.CallbackUrl, resultId, backendId, result), new EnqueuedState());
+                x => x.Notify(scanResult.CallbackUrl, resultId, backendId, result), 
+                new EnqueuedState("default"));
         }
 
         /// <inheritdoc />
         public async Task Notify(Uri uri, string resultId, string backendId, ScanResultMessage result)
         {
             var cancellationTokenSource = new CancellationTokenSource(
-                TimeSpan.FromSeconds(3));
+                TimeSpan.FromSeconds(5));
 
             using var httpClient = _httpClientFactory.CreateClient();
 
@@ -72,6 +82,8 @@ namespace MalwareMultiScan.Api.Services
                     cancellationTokenSource.Token);
 
                 response.EnsureSuccessStatusCode();
+                
+                _logger.LogInformation($"Sent POST to callback URL {uri}");
             }
             catch (Exception exception)
             {