Learn Azure AI Search with C# — index data, run vector and hybrid queries, and add RAG to your .NET app. Start building intelligent search today. If your application's search box still runs a LIKE '%term%' query against SQL Server, your users are quietly suffering. They type "cheap laptop for uni" and get zero results because your catalogue says "affordable notebook for students." Azure AI Search with C# fixes exactly this problem: it combines classic keyword search, vector embeddings, and semantic reranking into a single managed service that you can drive from .NET with a few dozen lines of code. In this tutorial you'll build a working search index from scratch, run keyword, vector, and hybrid queries, and finish with a Retrieval Augmented Generation (RAG) pattern that grounds an LLM in your own data. This guide targets .NET 9 and the Azure.Search.Documents v11 SDK. Every snippet is runnable. We'll explain why each design choice matter...
Learn ASP.NET Core global error handling with middleware, Problem Details, and logging. Master exception handling best practices with runnable C# examples today. ASP.NET Core global error handling is the single most important thing you can add to a production API, yet it is the piece most tutorials skip. When an unhandled exception bubbles up in a poorly configured app, your users see an ugly stack trace, your logs are noisy and inconsistent, and attackers learn far too much about your internals. In this guide you'll learn how to implement global error handling in ASP.NET Core the right way — using centralized exception handling middleware, the RFC 7807 Problem Details standard, and structured logging — with practical, runnable C# examples you can drop straight into your project. Whether you are a beginner searching "how to handle exceptions in ASP.NET Core", an intermediate developer looking for best practices, or a senior engineer wiring up advanced error hand...