Go Examples

Go CLI Tool with Cobra

Build a command-line tool in Go using Cobra with subcommands, persistent flags, shell completion, help templates, and configuration loading from environment.

Go CORS Middleware

Implement CORS middleware in Go with configurable allowed origins, methods, headers, preflight request handling, and credential support for cross-origin API.

Go File Upload Handler

Handle multipart file uploads in Go with size limits, MIME type validation, unique filename generation, streaming to disk without buffering entire file, and.

Go gRPC Server Setup

Create a gRPC server in Go with protobuf service definitions, interceptor middleware for logging and auth, graceful shutdown, health checks, and reflection.