Your First Azure Function: HTTP Triggers Step-by-Step

Theory doesn't ship features. You learned the why in Part 1 —when serverless makes sense, the economics, how it compares to App Service and Container Apps. Now let's build something. In this second part of the Azure Functions for .NET Developers series, we'll create a project from scratch, understand every line of generated code, and build three HTTP trigger patterns that cover most real-world API scenarios. By the end, you'll have a working HTTP API running locally on your machine. No Azure subscription required. All code from this article is available in the azure-functions-samples repository. Prerequisites You need four tools installed before we start. Here's what to check and where to get them: Tool Verify Expected .NET 10 SDK dotnet --version 10.x Azure Functions Core Tools func --version 4.x VS Code + Azure Functions extension — Latest Azurite npx azurite --version Any .NET 10 SDK is required to build and run our function app. It's an LTS release, supported through November 2028.