Рефактор: один экшн, который передается в качестве параметра в метод CreateReportAsync. Внутри экшна вызываются 2 метода: onProgress и progressHandler.

AsbCloudApp/Data/ReportProgressDto.cs

@@ -5,6 +5,11 @@
     /// </summary>
     public class ReportProgressDto
     {
+        /// <summary>
+        /// файл
+        /// </summary>
+        public FileInfoDto file { get; set; }
+
         /// <summary>
         /// прогресс 0 - 100%
         /// </summary>

AsbCloudApp/Services/IReportService.cs

@@ -27,13 +27,14 @@ namespace AsbCloudApp.Services
         /// <summary>
         /// Создание отчета
         /// </summary>
+        /// <param name="workId"></param>
         /// <param name="idWell"></param>
         /// <param name="idUser"></param>
         /// <param name="request"></param>
         /// <param name="progressHandler"></param>
         /// <param name="token"></param>
         /// <returns></returns>
-        Task CreateReportAsync(int idWell, int idUser, ReportParametersRequest request, Action<object, string> progressHandler, CancellationToken token);
+        Task CreateReportAsync(string workId, int idWell, int idUser, ReportParametersRequest request, Action<ReportProgressDto, string> progressHandler, CancellationToken token);
 
         /// <summary>
         /// Получить предполагаемый список страниц рапорта

AsbCloudInfrastructure/Background/WorkToCreateReport.cs

@@ -1,4 +1,5 @@
-using AsbCloudApp.Requests;
+using AsbCloudApp.Data;
+using AsbCloudApp.Requests;
 using AsbCloudApp.Services;
 using Microsoft.Extensions.DependencyInjection;
 using System;
@@ -23,13 +24,20 @@ namespace AsbCloudInfrastructure.Background
             this.idUser = idUser;
             this.request = request;
             this.progressHandler = progressHandler;
+
+            Id = $"create report by wellid:{idWell} for userid:{idUser} requested at {DateTime.Now}";
         }
 
 
         protected override async Task Action(string id, IServiceProvider services, Action<string, double?> onProgress, CancellationToken token)
         {
             var reportService = services.GetRequiredService<IReportService>();
-            await reportService.CreateReportAsync(idWell, idUser, request, progressHandler, token);
+            Action<ReportProgressDto, string> handler = (state, workId) =>
+            {
+                onProgress?.Invoke(state.Operation ?? string.Empty, state.Progress);
+                progressHandler?.Invoke(state, workId);
+            };
+            await reportService.CreateReportAsync(Id, idWell, idUser, request, handler, token);
         }
     }
 }

AsbCloudInfrastructure/Services/ReportService.cs

@@ -117,13 +117,13 @@ public class ReportService : IReportService
 
 
     public async Task CreateReportAsync(
+        string workId,
         int idWell,
         int idUser,
         ReportParametersRequest request,
-        Action<object, string> progressHandler,
+        Action<ReportProgressDto, string> progressHandler,
         CancellationToken token)
     {
-        var workId = $"create report by wellid:{idWell} for userid:{idUser} requested at {DateTime.Now}";
         var timezoneOffset = wellService.GetTimezone(idWell).Hours;
         var beginRemote = request.Begin.ToTimeZoneOffsetHours(timezoneOffset);
         var endRemote = request.End.ToTimeZoneOffsetHours(timezoneOffset);
@@ -150,7 +150,7 @@ public class ReportService : IReportService
 
         var fileInfo = (await fileService.MoveAsync(idWell, idUser, ReportCategoryId, reportFileName, reportFileName, token))!;
 
-        progressHandler(new
+        progressHandler(new ReportProgressDto()
         {
             Operation = "done",
             Progress = 100f,