WeihanLi.Common

Overview

WeihanLi.Common bundles a set of production-ready helpers, extensions, and middleware to simplify .NET application development. It covers dependency injection, AOP, eventing, logging, data access helpers, OTP utilities, templating, and more—built from real-world usage and battle-tested across services.

Packages

Package	Description
WeihanLi.Common	Core helpers and extensions: dependency resolver, configuration helpers, pipelines, TOTP utilities, command executors, etc.
WeihanLi.Common.Logging.Serilog	Integration layer so core logging abstractions seamlessly forward to Serilog or Microsoft.Extensions.Logging.
WeihanLi.Extensions.Hosting	Hosting helpers for quickly wiring background services, console apps, and DI bootstrapping.

Each package is available on NuGet and can be referenced independently.

Installation

Install the package you need using the .NET CLI or NuGet Package Manager:

dotnet add package WeihanLi.Common
# or install the Serilog integration
dotnet add package WeihanLi.Common.Logging.Serilog

Preview builds are also published; append --version <preview> to opt in.

Quick Start

using WeihanLi.Common.Helpers;

// Generate a TOTP code with the built-in helper.
var secret = $"{ApplicationHelper.ApplicationName}_demo_secret";
var code = TotpHelper.GenerateCode(secret);

Console.WriteLine($"Generated code: {code}");

var isValid = TotpHelper.ValidateCode(secret, code);
Console.WriteLine($"Valid code: {isValid}");

See samples/DotNetCoreSample and samples/AspNetCoreSample for richer scenarios that exercise DI decorators, event buses, logging pipelines, and more.

Feature Highlights

• Dependency Injection: Lightweight container abstractions, decorator helpers, metadata-based registrations, proxy support, and integration with Microsoft.Extensions.DependencyInjection.
• Fluent Aspects (AOP): Dynamic proxy-based interception with fluent configuration for method-level behaviors (logging, validation, caching, etc.).
• Event Infrastructure: In-memory and queue-backed EventBus, EventStore, and handler helpers to wire publish/subscribe workflows.
• Logging: Abstractions with adapters for built-in logging and Serilog plus formatting helpers to ship structured events.
• Data Access Helpers: Dapper-style extensions over ADO.NET, entity mapping utilities, and SQL expression parsers to streamline data access layers.
• OTP & Security: TOTP implementation, helpers, and service abstractions to secure user flows with minimal setup.
• Templating & Text: Lightweight template engine and string utility helpers for dynamic content rendering.
• Utilities: Process executor, pipeline builder, command helpers, configuration helpers, async invokers, and more.

Documentation & Samples

• Browse the docs in docs/index.md and articles under docs/articles for deep dives.
• API references can be generated with DocFX (docs/docfx.json).
• Samples live under samples/ and demonstrate step-by-step usage patterns you can adapt.

Building & Testing

dotnet build
dotnet test

CI builds run with both Azure Pipelines (azure-pipelines.yml) and GitHub Actions (.github/workflows/default.yml), so you can rely on the same commands locally.

Release Notes

Head to the merged pull requests list or the docfx ReleaseNotes for a chronological view of changes.