In-depth, hands-on guides on .NET, C#, Azure, and AI engineering by Suthahar Jegatheesan — working code, real trade-offs, no filler.https://blog.msdevbuild.comenhttps://blog.msdevbuild.com/blog/azure-openai-rag-dotnethttps://blog.msdevbuild.com/blog/azure-openai-rag-dotnetEnd-to-end retrieval-augmented generation in C#: chunking strategy, embeddings, hybrid vector search, and grounding a chat completion so it cites its sources.Sat, 18 Jul 2026 00:00:00 GMTAIAzure OpenAIRAGAzure AI SearchC#Embeddingshttps://blog.msdevbuild.com/blog/secure-minimal-api-jwt-dotnethttps://blog.msdevbuild.com/blog/secure-minimal-api-jwt-dotnetA complete, working setup for JWT bearer auth in ASP.NET Core Minimal APIs — token validation, role policies, and the configuration mistakes that silently disable security.Fri, 10 Jul 2026 00:00:00 GMT.NETASP.NET CoreMinimal APIAuthenticationJWTSecurityhttps://blog.msdevbuild.com/blog/minimal-api-project-structurehttps://blog.msdevbuild.com/blog/minimal-api-project-structureProgram.cs stops scaling around twenty endpoints. Here is a vertical-slice layout for Minimal APIs that keeps routing, validation, and handlers organised as the project grows.Sun, 28 Jun 2026 00:00:00 GMT.NETASP.NET CoreMinimal APIArchitectureVertical Slice