Add Worker background service to log periodic messages

Added a Worker class in EnvelopeGenerator.ServiceHost that logs an informational message every second. Registered the Worker as a hosted service in Program.cs to run alongside the web API.
Add EnvelopeGenerator.ServiceHost ASP.NET Core Web API project
2026-02-23 11:10:15 +01:00 · 2026-02-23 11:10:01 +01:00
20 changed files with 193 additions and 91 deletions
--- a/EnvelopeGenerator.Application/Common/Dto/EnvelopeDto.cs
+++ b/EnvelopeGenerator.Application/Common/Dto/EnvelopeDto.cs
@@ -2,7 +2,6 @@
 using DigitalData.UserManager.Application.DTOs.User;
 using EnvelopeGenerator.Domain.Constants;
 using EnvelopeGenerator.Domain.Entities;
-using EnvelopeGenerator.Domain.Interfaces;
 using Microsoft.AspNetCore.Mvc;

 namespace EnvelopeGenerator.Application.Common.Dto;
@@ -11,7 +10,7 @@ namespace EnvelopeGenerator.Application.Common.Dto;
 /// 
 /// </summary>
 [ApiExplorerSettings(IgnoreApi = true)]
-public record EnvelopeDto : IEnvelope
+public record EnvelopeDto
 {
 	/// <summary>
 	/// 
--- a/EnvelopeGenerator.Application/Common/Notifications/DocSigned/Handlers/SendSignedMailHandler.cs
+++ b/EnvelopeGenerator.Application/Common/Notifications/DocSigned/Handlers/SendSignedMailHandler.cs
@@ -3,7 +3,6 @@ using DigitalData.EmailProfilerDispatcher.Abstraction.Entities;
 using EnvelopeGenerator.Application.Common.Configurations;
 using EnvelopeGenerator.Domain.Entities;
 using Microsoft.Extensions.Options;
-using EnvelopeGenerator.Domain.Interfaces;

 namespace EnvelopeGenerator.Application.Common.Notifications.DocSigned.Handlers;

@@ -46,25 +45,6 @@ public class SendSignedMailHandler : SendMailHandler<DocSignedNotification>
            { "[DOCUMENT_TITLE]", notification.Envelope?.Title ?? string.Empty },
        };

-        if (notification.Envelope.IsReadAndConfirm())
-        {
-            placeHolders["[SIGNATURE_TYPE]"] = "Lesen und bestätigen";
-            placeHolders["[DOCUMENT_PROCESS]"] = string.Empty;
-            placeHolders["[FINAL_STATUS]"] = "Lesebestätigung";
-            placeHolders["[FINAL_ACTION]"] = "Empfänger bestätigt";
-            placeHolders["[REJECTED_BY_OTHERS]"] = "anderen Empfänger abgelehnt!";
-            placeHolders["[RECEIVER_ACTION]"] = "bestätigt";
-        }
-        else
-        {
-            placeHolders["[SIGNATURE_TYPE]"] = "Signieren";
-            placeHolders["[DOCUMENT_PROCESS]"] = " und elektronisch unterschreiben";
-            placeHolders["[FINAL_STATUS]"] = "Signatur";
-            placeHolders["[FINAL_ACTION]"] = "Vertragspartner unterzeichnet";
-            placeHolders["[REJECTED_BY_OTHERS]"] = "anderen Vertragspartner abgelehnt! Ihre notwendige Unterzeichnung wurde verworfen.";
-            placeHolders["[RECEIVER_ACTION]"] = "unterschrieben";
-        }
-
        return placeHolders;
    }
 }
--- a/EnvelopeGenerator.Application/EnvelopeGenerator.Application.csproj
+++ b/EnvelopeGenerator.Application/EnvelopeGenerator.Application.csproj
@@ -37,7 +37,7 @@
 	</ItemGroup>

 	<ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
-		<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
+		<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.5" />
 	</ItemGroup>

 	<ItemGroup Condition="'$(TargetFramework)' == 'net9.0'">
@@ -80,7 +80,7 @@

 	<ItemGroup Condition="'$(TargetFramework)' == 'net7.0'">
 	  <PackageReference Include="AutoMapper" Version="13.0.1" />
-	  <PackageReference Include="Microsoft.Data.SqlClient" Version="5.2.2" />
+	  <PackageReference Include="Microsoft.Data.SqlClient" Version="6.1.4" />
 	  <PackageReference Include="CommandDotNet">
 		<Version>7.0.5</Version>
 	  </PackageReference>
@@ -88,6 +88,7 @@

 	<ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
 	  <PackageReference Include="AutoMapper" Version="14.0.0" />
+	  <PackageReference Include="Microsoft.Data.SqlClient" Version="6.0.2" />
 	  <PackageReference Include="CommandDotNet">
 	    <Version>8.1.1</Version>
 	  </PackageReference>
@@ -95,6 +96,7 @@

 	<ItemGroup Condition="'$(TargetFramework)' == 'net9.0'">
 	  <PackageReference Include="AutoMapper" Version="14.0.0" />
+	  <PackageReference Include="Microsoft.Data.SqlClient" Version="6.0.2" />
 	  <PackageReference Include="CommandDotNet">
 	    <Version>8.1.1</Version>
 	  </PackageReference>
--- a/EnvelopeGenerator.Application/Services/EnvelopeMailService.cs
+++ b/EnvelopeGenerator.Application/Services/EnvelopeMailService.cs
@@ -12,7 +12,6 @@ using EnvelopeGenerator.Application.Common.Dto.EnvelopeReceiverReadOnly;
 using EnvelopeGenerator.Application.Common.Extensions;
 using EnvelopeGenerator.Application.Common.Interfaces.Services;
 using MediatR;
-using EnvelopeGenerator.Domain.Interfaces;

 namespace EnvelopeGenerator.Application.Services;

@@ -50,33 +49,14 @@ public class EnvelopeMailService : EmailOutService, IEnvelopeMailService
 		_sender = sender;
    }

-	private async Task<Dictionary<string, string>> CreatePlaceholders(string? accessCode = null, EnvelopeReceiverDto? er = null)
+	private async Task<Dictionary<string, string>> CreatePlaceholders(string? accessCode = null, EnvelopeReceiverDto? envelopeReceiverDto = null)
 	{
-		if (er!.Envelope.IsReadAndConfirm())
-		{
-			_placeholders["[SIGNATURE_TYPE]"] = "Lesen und bestätigen";
-			_placeholders["[DOCUMENT_PROCESS]"] = string.Empty;
-            _placeholders["[FINAL_STATUS]"] = "Lesebestätigung";
-            _placeholders["[FINAL_ACTION]"] = "Empfänger bestätigt";
-            _placeholders["[REJECTED_BY_OTHERS]"] = "anderen Empfänger abgelehnt!";
-            _placeholders["[RECEIVER_ACTION]"] = "bestätigt";
-        }
-		else
-        {
-            _placeholders["[SIGNATURE_TYPE]"] = "Signieren";
-            _placeholders["[DOCUMENT_PROCESS]"] = " und elektronisch unterschreiben";
-            _placeholders["[FINAL_STATUS]"] = "Signatur";
-            _placeholders["[FINAL_ACTION]"] = "Vertragspartner unterzeichnet";
-            _placeholders["[REJECTED_BY_OTHERS]"] = "anderen Vertragspartner abgelehnt! Ihre notwendige Unterzeichnung wurde verworfen.";
-            _placeholders["[RECEIVER_ACTION]"] = "unterschrieben";
-        }
-
 		if (accessCode is not null)
 			_placeholders["[DOCUMENT_ACCESS_CODE]"] = accessCode;

-		if (er?.Envelope is not null && er.Receiver is not null)
+		if (envelopeReceiverDto?.Envelope is not null && envelopeReceiverDto.Receiver is not null)
 		{
-			var erId = (er.Envelope.Uuid, er.Receiver.Signature).ToEnvelopeKey();
+			var erId = (envelopeReceiverDto.Envelope.Uuid, envelopeReceiverDto.Receiver.Signature).ToEnvelopeKey();
 			var sigHost = await _configService.ReadDefaultSignatureHost();
 			var linkToDoc = $"{sigHost}/EnvelopeKey/{erId}";
 			_placeholders["[LINK_TO_DOCUMENT]"] = linkToDoc;
@@ -86,8 +66,7 @@ public class EnvelopeMailService : EmailOutService, IEnvelopeMailService
 		return _placeholders;
 	}

-    // TODO: merge the two CreatePlaceholders methods by using a common parameter object containing all the required information to create the place holders.
-    private async Task<Dictionary<string, string>> CreatePlaceholders(EnvelopeReceiverReadOnlyDto? readOnlyDto = null)
+	private async Task<Dictionary<string, string>> CreatePlaceholders(EnvelopeReceiverReadOnlyDto? readOnlyDto = null)
 	{
 		if (readOnlyDto?.Envelope is not null && readOnlyDto.Receiver is not null)
 		{
@@ -145,7 +124,7 @@ public class EnvelopeMailService : EmailOutService, IEnvelopeMailService
 			return acResult.ToFail<int>().Notice(LogLevel.Error, "Therefore, access code cannot be sent");
 		var accessCode = acResult.Data;

-		var placeholders = await CreatePlaceholders(accessCode: accessCode, er: dto);
+		var placeholders = await CreatePlaceholders(accessCode: accessCode, envelopeReceiverDto: dto);

 		// Add optional place holders.
 		if (optionalPlaceholders is not null)
--- a/EnvelopeGenerator.Domain/Entities/Envelope.cs
+++ b/EnvelopeGenerator.Domain/Entities/Envelope.cs
@@ -5,7 +5,6 @@ using System.ComponentModel.DataAnnotations.Schema;
 using EnvelopeGenerator.Domain.Constants;
 using Newtonsoft.Json;
 using EnvelopeGenerator.Domain.Interfaces.Auditing;
-using EnvelopeGenerator.Domain.Interfaces;
 #if NETFRAMEWORK
 using System.Collections.Generic;
 using System.Linq;
@@ -14,7 +13,7 @@ using System.Linq;
 namespace EnvelopeGenerator.Domain.Entities
 {
    [Table("TBSIG_ENVELOPE", Schema = "dbo")]
-    public class Envelope : IHasAddedWhen, IHasChangedWhen, IEnvelope
+    public class Envelope : IHasAddedWhen, IHasChangedWhen
    {
        public Envelope()
        {
@@ -107,8 +106,7 @@ namespace EnvelopeGenerator.Domain.Entities

        [JsonIgnore]
        [NotMapped]
-        [Obsolete("Use EnvelopeGenerator.Domain.Interfaces.EnvelopeExtensions.IsReadAndConfirm extension method instead.")]
-        public bool ReadOnly => this.IsReadAndConfirm();
+        public bool ReadOnly => EnvelopeTypeId == 2;

        [Column("CERTIFICATION_TYPE")]
        public int? CertificationType { get; set; }
--- a/EnvelopeGenerator.Domain/Entities/History.cs
+++ b/EnvelopeGenerator.Domain/Entities/History.cs
@@ -37,7 +37,6 @@ namespace EnvelopeGenerator.Domain.Entities
        [Column("ACTION_DATE", TypeName = "datetime")]
        public DateTime? ActionDate { get; set; }

-        [NotMapped]
        public DateTime? ChangedWhen { get => ActionDate; set => ActionDate = value; }

        [Column("COMMENT", TypeName = "nvarchar(max)")]
--- a/EnvelopeGenerator.Domain/Interfaces/IEnvelope.cs
+++ b/EnvelopeGenerator.Domain/Interfaces/IEnvelope.cs
@@ -1,15 +0,0 @@
-namespace EnvelopeGenerator.Domain.Interfaces
-{
-    public interface IEnvelope
-    {
-        int? EnvelopeTypeId { get; set; }
-    }
-
-    public static class EnvelopeExtensions
-    {
-        public static bool IsReadAndConfirm(this IEnvelope envelope)
-        {
-            return envelope.EnvelopeTypeId == 2;
-        }
-    }
-}
--- a/EnvelopeGenerator.Infrastructure/EnvelopeGenerator.Infrastructure.csproj
+++ b/EnvelopeGenerator.Infrastructure/EnvelopeGenerator.Infrastructure.csproj
@@ -25,7 +25,7 @@
    <PackageReference Include="DigitalData.Core.Abstraction.Application" Version="1.6.0" />
    <PackageReference Include="DigitalData.Core.Infrastructure" Version="2.6.1" />
    <PackageReference Include="HtmlSanitizer" Version="9.0.892" />
-    <PackageReference Include="Microsoft.Data.SqlClient" Version="5.2.2" />
+    <PackageReference Include="Microsoft.Data.SqlClient" Version="6.1.4" />
    <PackageReference Include="Microsoft.Identity.Client" Version="4.82.1" />
    <PackageReference Include="QuestPDF" Version="2025.7.1" />
    <PackageReference Include="SixLabors.ImageSharp" Version="3.1.12" />
--- a/EnvelopeGenerator.Service/App.config
+++ b/EnvelopeGenerator.Service/App.config
@@ -23,7 +23,7 @@
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-4.0.5.0" newVersion="4.0.2.0" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.2.0" newVersion="4.0.2.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Runtime.CompilerServices.Unsafe" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
@@ -31,7 +31,7 @@
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Buffers" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-4.0.5.0" newVersion="4.0.4.0" />
+        <bindingRedirect oldVersion="0.0.0.0-4.0.4.0" newVersion="4.0.4.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Collections.Immutable" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
@@ -59,7 +59,7 @@
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Extensions.Logging.Abstractions" publicKeyToken="adb9793829ddae60" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-8.0.0.3" newVersion="8.0.0.3" />
+        <bindingRedirect oldVersion="0.0.0.0-7.0.0.0" newVersion="7.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Text.Encodings.Web" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
@@ -67,7 +67,7 @@
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Extensions.DependencyInjection.Abstractions" publicKeyToken="adb9793829ddae60" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-8.0.0.2" newVersion="8.0.0.2" />
+        <bindingRedirect oldVersion="0.0.0.0-7.0.0.0" newVersion="7.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Extensions.Caching.Abstractions" publicKeyToken="adb9793829ddae60" culture="neutral" />
--- a/EnvelopeGenerator.Service/EnvelopeGenerator.Service.vbproj
+++ b/EnvelopeGenerator.Service/EnvelopeGenerator.Service.vbproj
@@ -181,11 +181,11 @@
    <Reference Include="Microsoft.Extensions.DependencyInjection, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
      <HintPath>..\packages\Microsoft.Extensions.DependencyInjection.7.0.0\lib\net462\Microsoft.Extensions.DependencyInjection.dll</HintPath>
    </Reference>
-    <Reference Include="Microsoft.Extensions.DependencyInjection.Abstractions, Version=8.0.0.2, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
-      <HintPath>..\packages\Microsoft.Extensions.DependencyInjection.Abstractions.8.0.2\lib\net462\Microsoft.Extensions.DependencyInjection.Abstractions.dll</HintPath>
+    <Reference Include="Microsoft.Extensions.DependencyInjection.Abstractions, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.Extensions.DependencyInjection.Abstractions.7.0.0\lib\net462\Microsoft.Extensions.DependencyInjection.Abstractions.dll</HintPath>
    </Reference>
-    <Reference Include="Microsoft.Extensions.Logging.Abstractions, Version=8.0.0.3, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
-      <HintPath>..\packages\Microsoft.Extensions.Logging.Abstractions.8.0.3\lib\net462\Microsoft.Extensions.Logging.Abstractions.dll</HintPath>
+    <Reference Include="Microsoft.Extensions.Logging.Abstractions, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60, processorArchitecture=MSIL">
+      <HintPath>..\packages\Microsoft.Extensions.Logging.Abstractions.7.0.0\lib\net462\Microsoft.Extensions.Logging.Abstractions.dll</HintPath>
    </Reference>
    <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
      <HintPath>..\packages\Newtonsoft.Json.13.0.3\lib\net45\Newtonsoft.Json.dll</HintPath>
--- a/EnvelopeGenerator.Service/packages.config
+++ b/EnvelopeGenerator.Service/packages.config
@@ -13,8 +13,8 @@
  <package id="Microsoft.Bcl.AsyncInterfaces" version="8.0.0" targetFramework="net48" />
  <package id="Microsoft.CSharp" version="4.7.0" targetFramework="net48" />
  <package id="Microsoft.Extensions.DependencyInjection" version="7.0.0" targetFramework="net462" />
-  <package id="Microsoft.Extensions.DependencyInjection.Abstractions" version="8.0.2" targetFramework="net462" />
-  <package id="Microsoft.Extensions.Logging.Abstractions" version="8.0.3" targetFramework="net462" />
+  <package id="Microsoft.Extensions.DependencyInjection.Abstractions" version="7.0.0" targetFramework="net462" />
+  <package id="Microsoft.Extensions.Logging.Abstractions" version="7.0.0" targetFramework="net462" />
  <package id="Microsoft.VisualBasic" version="10.3.0" targetFramework="net48" />
  <package id="Newtonsoft.Json" version="13.0.3" targetFramework="net48" />
  <package id="Newtonsoft.Json.Bson" version="1.0.2" targetFramework="net48" />
--- a/EnvelopeGenerator.ServiceHost/EnvelopeGenerator.ServiceHost.csproj
+++ b/EnvelopeGenerator.ServiceHost/EnvelopeGenerator.ServiceHost.csproj
@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Controllers\" />
+  </ItemGroup>
+
+</Project>
--- a/EnvelopeGenerator.ServiceHost/Program.cs
+++ b/EnvelopeGenerator.ServiceHost/Program.cs
@@ -0,0 +1,29 @@
+using EnvelopeGenerator.ServiceHost;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+builder.Services.AddHostedService<Worker>();
+
+// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.UseSwagger();
+    app.UseSwaggerUI();
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();
--- a/EnvelopeGenerator.ServiceHost/Properties/launchSettings.json
+++ b/EnvelopeGenerator.ServiceHost/Properties/launchSettings.json
@@ -0,0 +1,41 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:27420",
+      "sslPort": 44372
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "http://localhost:5088",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7234;http://localhost:5088",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}
--- a/EnvelopeGenerator.ServiceHost/Worker.cs
+++ b/EnvelopeGenerator.ServiceHost/Worker.cs
@@ -0,0 +1,23 @@
+namespace EnvelopeGenerator.ServiceHost;
+
+public class Worker : BackgroundService
+{
+    private readonly ILogger<Worker> _logger;
+
+    public Worker(ILogger<Worker> logger)
+    {
+        _logger = logger;
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        while (!stoppingToken.IsCancellationRequested)
+        {
+            if (_logger.IsEnabled(LogLevel.Information))
+            {
+                _logger.LogInformation("Worker running at: {time}", DateTimeOffset.Now);
+            }
+            await Task.Delay(1000, stoppingToken);
+        }
+    }
+}
--- a/EnvelopeGenerator.ServiceHost/appsettings.Development.json
+++ b/EnvelopeGenerator.ServiceHost/appsettings.Development.json
@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}
--- a/EnvelopeGenerator.ServiceHost/appsettings.json
+++ b/EnvelopeGenerator.ServiceHost/appsettings.json
@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}
--- a/EnvelopeGenerator.Web/EnvelopeGenerator.Web.csproj
+++ b/EnvelopeGenerator.Web/EnvelopeGenerator.Web.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">

 	<PropertyGroup>
-		<TargetFrameworks>net8.0;net9.0</TargetFrameworks>
+		<TargetFrameworks>net7.0;net8.0;net9.0</TargetFrameworks>
 		<Nullable>enable</Nullable>
 		<ImplicitUsings>enable</ImplicitUsings>
 		<PackageId>EnvelopeGenerator.Web</PackageId>
@@ -12,9 +12,9 @@
 		<PackageTags>digital data envelope generator web</PackageTags>
 		<Description>EnvelopeGenerator.Web is an ASP.NET MVC application developed to manage signing processes. It uses Entity Framework Core (EF Core) for database operations. The user interface for signing processes is developed with Razor View Engine (.cshtml files) and JavaScript under wwwroot, integrated with PSPDFKit. This integration allows users to view and sign documents seamlessly.</Description>
 		<ApplicationIcon>Assets\icon.ico</ApplicationIcon>
-		<Version>3.11.0</Version>						<!-- NuGet package version -->
-		<AssemblyVersion>3.11.0.0</AssemblyVersion>		<!-- Assembly version for API compatibility -->
-		<FileVersion>3.11.0.0</FileVersion>				<!-- Windows file version -->
+		<Version>3.10.0</Version>						<!-- NuGet package version -->
+		<AssemblyVersion>3.10.0.0</AssemblyVersion>		<!-- Assembly version for API compatibility -->
+		<FileVersion>3.10.0.0</FileVersion>				<!-- Windows file version -->
 		<Copyright>Copyright © 2025 Digital Data GmbH. All rights reserved.</Copyright>
 	</PropertyGroup>

@@ -2093,14 +2093,39 @@
 		<None Include="wwwroot\lib\bootstrap-icons\icons\zoom-out.svg" />
 	</ItemGroup>

+	<ItemGroup Condition="'$(TargetFramework)' == 'net7.0'">
+		<PackageReference Include="BuildBundlerMinifier2022" Version="2.9.9" />
+		<PackageReference Include="DigitalData.Core.API" Version="2.2.1" />
+		<PackageReference Include="DigitalData.Core.Exceptions" Version="1.1.0" />
+		<PackageReference Include="DigitalData.EmailProfilerDispatcher" Version="3.1.1" />
+		<PackageReference Include="HtmlSanitizer" Version="9.0.892" />
+		<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.4" />
+		<PackageReference Include="Microsoft.Extensions.Caching.SqlServer" Version="7.0.20" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+		<PackageReference Include="NLog" Version="5.2.5" />
+		<PackageReference Include="NLog.Web.AspNetCore" Version="5.3.0" />
+		<PackageReference Include="Quartz" Version="3.8.0" />
+		<PackageReference Include="Quartz.AspNetCore" Version="3.8.0" />
+		<PackageReference Include="Quartz.Plugins" Version="3.8.0" />
+		<PackageReference Include="Quartz.Serialization.Json" Version="3.8.0" />
+		<PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
+		<PackageReference Include="System.Configuration.ConfigurationManager" Version="8.0.1" />
+		<PackageReference Include="System.Diagnostics.PerformanceCounter" Version="7.0.0" />
+		<PackageReference Include="System.DirectoryServices" Version="7.0.1" />
+		<PackageReference Include="System.DirectoryServices.AccountManagement" Version="7.0.1" />
+		<PackageReference Include="System.DirectoryServices.Protocols" Version="7.0.1" />
+		<PackageReference Include="System.Drawing.Common" Version="7.0.0" />
+		<PackageReference Include="System.Security.Cryptography.Cng" Version="5.0.0" />
+	</ItemGroup>
+
 	<ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
 		<PackageReference Include="BuildBundlerMinifier2022" Version="2.9.9" />
 		<PackageReference Include="DigitalData.Core.API" Version="2.2.1" />
 		<PackageReference Include="DigitalData.Core.Exceptions" Version="1.1.0" />
 		<PackageReference Include="DigitalData.EmailProfilerDispatcher" Version="3.1.1" />
 		<PackageReference Include="HtmlSanitizer" Version="9.0.892" />
-		<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="8.0.17" />
-		<PackageReference Include="Microsoft.Extensions.Caching.SqlServer" Version="8.0.17" />
+		<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.4" />
+		<PackageReference Include="Microsoft.Extensions.Caching.SqlServer" Version="7.0.20" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
 		<PackageReference Include="NLog" Version="5.2.5" />
 		<PackageReference Include="NLog.Web.AspNetCore" Version="5.3.0" />
@@ -2124,8 +2149,8 @@
 		<PackageReference Include="DigitalData.Core.Exceptions" Version="1.1.0" />
 		<PackageReference Include="DigitalData.EmailProfilerDispatcher" Version="3.1.1" />
 		<PackageReference Include="HtmlSanitizer" Version="9.0.892" />
-		<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.6" />
-		<PackageReference Include="Microsoft.Extensions.Caching.SqlServer" Version="9.0.6" />
+		<PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="7.0.4" />
+		<PackageReference Include="Microsoft.Extensions.Caching.SqlServer" Version="7.0.20" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
 		<PackageReference Include="NLog" Version="5.2.5" />
 		<PackageReference Include="NLog.Web.AspNetCore" Version="5.3.0" />
--- a/EnvelopeGenerator.Web/appsettings.Mail.json
+++ b/EnvelopeGenerator.Web/appsettings.Mail.json
@@ -8,6 +8,7 @@
  "MailParams": {
    "Placeholders": {
      "[NAME_PORTAL]": "signFlow",
+      "[SIGNATURE_TYPE]": "signieren",
      "[REASON]": ""
    }
  }
--- a/EnvelopeGenerator.sln
+++ b/EnvelopeGenerator.sln
@@ -35,6 +35,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EnvelopeGenerator.Tests", "
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EnvelopeGenerator.API", "EnvelopeGenerator.API\EnvelopeGenerator.API.csproj", "{EC768913-6270-14F4-1DD3-69C87A659462}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EnvelopeGenerator.ServiceHost", "EnvelopeGenerator.ServiceHost\EnvelopeGenerator.ServiceHost.csproj", "{5DD82482-E560-405F-BF55-04D647B05BEF}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -53,8 +55,8 @@ Global
 		{5E0E17C0-FF5A-4246-BF87-1ADD85376A27}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5E0E17C0-FF5A-4246-BF87-1ADD85376A27}.Release|Any CPU.ActiveCfg = Debug|Any CPU
 		{5E0E17C0-FF5A-4246-BF87-1ADD85376A27}.Release|Any CPU.Build.0 = Debug|Any CPU
-		{83ED2617-B398-4859-8F59-B38F8807E83E}.Debug|Any CPU.ActiveCfg = Release|Any CPU
-		{83ED2617-B398-4859-8F59-B38F8807E83E}.Debug|Any CPU.Build.0 = Release|Any CPU
+		{83ED2617-B398-4859-8F59-B38F8807E83E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{83ED2617-B398-4859-8F59-B38F8807E83E}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{83ED2617-B398-4859-8F59-B38F8807E83E}.Release|Any CPU.ActiveCfg = Debug|Any CPU
 		{83ED2617-B398-4859-8F59-B38F8807E83E}.Release|Any CPU.Build.0 = Debug|Any CPU
 		{4F32A98D-E6F0-4A09-BD97-1CF26107E837}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
@@ -85,6 +87,10 @@ Global
 		{EC768913-6270-14F4-1DD3-69C87A659462}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{EC768913-6270-14F4-1DD3-69C87A659462}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{EC768913-6270-14F4-1DD3-69C87A659462}.Release|Any CPU.Build.0 = Release|Any CPU
+		{5DD82482-E560-405F-BF55-04D647B05BEF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5DD82482-E560-405F-BF55-04D647B05BEF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5DD82482-E560-405F-BF55-04D647B05BEF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5DD82482-E560-405F-BF55-04D647B05BEF}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -104,6 +110,7 @@ Global
 		{211619F5-AE25-4BA5-A552-BACAFE0632D3} = {9943209E-1744-4944-B1BA-4F87FC1A0EEB}
 		{224C4845-1CDE-22B7-F3A9-1FF9297F70E8} = {0CBC2432-A561-4440-89BC-671B66A24146}
 		{EC768913-6270-14F4-1DD3-69C87A659462} = {E3C758DC-914D-4B7E-8457-0813F1FDB0CB}
+		{5DD82482-E560-405F-BF55-04D647B05BEF} = {E3C758DC-914D-4B7E-8457-0813F1FDB0CB}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {73E60370-756D-45AD-A19A-C40A02DACCC7}