Learn gRPC in C# .NET with Protocol Buffers. Build fast, type-safe APIs with streaming, deadlines and interceptors. Start the full tutorial now. If you have ever watched a JSON REST API buckle under chatty microservice traffic, gRPC in C# is the fix you have been looking for. gRPC is a contract-first RPC framework built on HTTP/2 and Protocol Buffers, and the .NET implementation is one of the fastest in the entire gRPC ecosystem. Instead of hand-writing controllers, DTOs and HttpClient wrappers, you describe your service once in a .proto file and the toolchain generates strongly typed server bases and clients for you. This guide walks through building a production-grade gRPC service in ASP.NET Core: the protobuf contract, the server, the client, all four call types, deadlines, interceptors, retries, JSON transcoding, and the pitfalls that bite teams in month three. Every example runs on .NET 8 or later (the snippets below were verified against .NET 10). Why Choose gRPC in C# ...
Learn Azure Cosmos DB with C# in this step-by-step tutorial. Master partition keys, RUs, LINQ queries, and .NET SDK best practices. Start building today! If you have ever watched a SQL Server database buckle under traffic from three continents at once, you already understand why Azure Cosmos DB exists. Working with Azure Cosmos DB C# applications gives you a globally distributed, multi-model database with single-digit millisecond reads, 99.999% availability, and elastic scale — all reachable through a first-class .NET SDK. This tutorial walks you through everything from your first container to advanced patterns like bulk ingestion, optimistic concurrency, and change feed processing. We will use the Microsoft.Azure.Cosmos v3 SDK on .NET 8/9, and every example is runnable. More importantly, we will explain why each decision matters — because in Cosmos DB, an innocent-looking design choice can multiply your monthly bill by ten. What Is Azure Cosmos DB and Why Should C# Develop...