Exceptions & Validation

📕 Articles

• Design validations in the domain model layer
• REST API Data Validation
• Domain Model Validation
• Validation in a DDD world
• Domain Command Patterns - Validation
• Validation in Domain-Driven Design (DDD)
• Validation and DDD
• C# code contracts vs input validation
• The fallacy of the always-valid entity
• When to validate commands in CQRS?
• Exceptions for flow control in C#
• Fail Fast principle
• Functional C#: Primitive obsession ⭐
• Functional C#: Non-nullable reference types ⭐
• REST API response codes: 400 vs 500
• Functional C# Handling failures, input errors
• Prefer Custom Exceptions to Framework Exceptions
• CQRS and exception handling
• Error handling: Exception or Result?
• What is an exceptional situation in code?
• Validation and DDD
• Cool validation with FluentValidation
• Validation inside or outside entities?
• Custom Validation in ASP.NET Web API with FluentValidation
• CQRS Validation Pipeline with MediatR and FluentValidation
• Exception Handling in ASP.NET Web API - A Guided Tour
• Scaffold Your Clean DDD Web Application - Part 4: Global Exception Handling in ASP.NET Core and Angular
• Advanced error handling techniques
• Combining ASP.NET Core validation attributes with Value Objects
• Always-Valid Domain Model
• eShopOnWeb Architecture (3/16) – uses custom exceptions to more explicitly express what has gone wrong
• How to validate business logic ⭐
• Explicit validation in C# just got simpler! ⭐
• Notes about C# records and Nullable Reference Types ⭐
• Exploring Advanced Error Handling Patterns with Event Driven Architecture Part I
• DDD: Business Logic & Exceptions in Entities

📦 Libraries

• ardalis/GuardClauses - A simple package with guard clause extensions.
• danielwertheim/Ensure.That - Guard clause project for .NET
• proudmonkey/AutoWrapper
• khellang/Middleware.ProblemDetails - Various ASP.NET Core middleware
• ardalis/GuardClauses - A simple package with guard clause extensions.
• JosephWoodward/GlobalExceptionHandlerDotNet - Exception handling as a convention in the ASP.NET Core request pipeline.
• safakgur/guard - A high-performance, extensible argument validation library.
• FluentValidation/FluentValidation - A popular .NET validation library for building strongly-typed validation rules.
• mcintyre321/OneOf - Easy to use F#-like _{discriminated} unions for C# with exhaustive compile time matching
• ardalis/Result - A result abstraction that can be mapped to HTTP response codes if needed.
• altmann/FluentResults - A generalised Result object implementation for .NET/C#