DiagnosKit.Core 2.0.2

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package DiagnosKit.Core --version 2.0.2
                    


                    

                
NuGet\Install-Package DiagnosKit.Core -Version 2.0.2
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="DiagnosKit.Core" Version="2.0.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="DiagnosKit.Core" Version="2.0.2" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="DiagnosKit.Core" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add DiagnosKit.Core --version 2.0.2
                    


                    

                
#r "nuget: DiagnosKit.Core, 2.0.2"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package DiagnosKit.Core@2.0.2
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=DiagnosKit.Core&version=2.0.2
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=DiagnosKit.Core&version=2.0.2
                    


                            Install as a Cake Tool

DiagnosKit.Core

NuGet
NuGet Downloads

📖 Overview

DiagnosKit.Core is a reusable .NET toolkit providing cross-cutting features for your services, including:

  • Global error handling middleware to capture and format unhandled exceptions.
  • Centralized logger manager powered by Serilog with support for Elasticsearch and Kibana.
  • Standardized error response models for consistent API output.

Designed for microservices, distributed systems, or any project that needs consistent logging, error handling, and observability.

📦 Installation

Install from NuGet:

dotnet add package DiagnosKit.Core

🚀 Quick Start

1. Register the Logger Manager

In Program.cs or Startup.ConfigureServices:

builder.Services.AddLoggerManager();

2. Configure Serilog with Elasticsearch Sink

In Program.cs (before builder.Build()):

builder.Host.ConfigureSerilogESSink();

This will:

  • Read settings from appsettings.json and environment-specific config.
  • Enrich logs with machine name, environment, correlation id, process id, and exception details.
  • Write logs to Console, Debug, and Elasticsearch.
  • Automatically index logs into Elasticsearch with an index format:
{service-name}-{environment}-{yyyy-MM}

3. Use the Global Error Handler

In Program.cs or Startup.Configure:

app.UseUnifiedErrorHandler();

🛠 Logging Examples

Once configured, inject the ILoggerManager into your service:

// Info
_logger.LogInfo("Application started");

// Debug
_logger.LogDebug("Processing request {RequestId}", requestId);

// Warning
_logger.LogWarn("User {UserId} attempted invalid action", userId);

// Error
_logger.LogError("Something went wrong");
_logger.LogError(exception, "Exception occurred while processing request");

All logs will be shipped to Console, Elasticsearch, and be queryable in Kibana.

Sample appsettings.json for Serilog and Elasticsearch to work as expected

{
  "Serilog": {
    "MinimumLevel": {
      "Default": "Information",
      "Override": {
        "Microsoft.AspNetCore": "Information",
        "System": "Warning"
      }
    }
  },
  "ElasticSearch": {
    "Url": "http://localhost:9200",
  }
}

📊 Kibana Filtering

Because logs are enriched with structured properties (like Environment, Service, CorrelationId, and Exception),
you can filter/search logs in Kibana by:

  • Environment: "Production"
  • Service: "UserService"
  • Exception exists
  • UserId: 12345

⚖ License

This project is licensed under the MIT License - see the LICENSE file for details.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
2.3.1 279 10/24/2025
2.3.0 225 10/23/2025
2.2.9 217 10/12/2025
2.2.8 198 10/12/2025
2.2.7 227 10/6/2025
2.2.6 201 10/6/2025
2.2.5 199 10/6/2025
2.2.4 207 10/6/2025
2.2.3 210 10/5/2025
2.2.2 313 8/28/2025
2.2.1 244 8/28/2025
2.2.0 202 8/28/2025
2.1.3 134 8/23/2025
2.0.3 188 8/22/2025
2.0.2 196 8/22/2025
2.0.0 194 8/22/2025
1.0.0 211 8/13/2025
1.0.0-rc 205 8/13/2025