Latest · Go Programming
Rate Limiting Go APIs with golang.org/x/time/rate
Protect your Go HTTP APIs with token bucket rate limiting: per-client limiters, middleware, the standard rate limit headers, client-side throttling and when to move…
10 articles
Http
Practical Go and web development tutorials: concurrency, performance, backend architecture, testing and DevOps — with runnable code examples.
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Go Programming
Graceful Shutdown in Go Web Services: Stop Dropping Requests on Deploy
How to shut down a Go HTTP server without dropping in-flight requests: signal.NotifyContext, Server.Shutdown, draining background workers, and the timeouts that make…
Go Programming
Structured Logging in Go with log/slog: A Practical Guide
Replace fmt-style logging with Go's built-in log/slog package: JSON handlers, levels, context-aware loggers, grouped attributes and request-scoped fields, with…
Go Programming
Error Handling in Go: Wrapping, Sentinel Errors and errors.Is/As
A practical guide to Go error handling — wrapping with %w, sentinel errors, custom error types, errors.Is and errors.As, and where each one belongs in a real…
Go Programming
Understanding Golang Context: Cancellation, Timeouts, and Deadlines
Deep-dive into Golang's context package to manage cancellation, timeouts, deadlines, and request-scoped data across goroutines with practical examples and best…
Performance Optimization
103 Early Hints in Go, or the new Way of How to Improve Performance of a Web Page written in Go
Learn how to implement HTTP 103 Early Hints in Go 1.19+ to significantly improve web page loading performance by enabling browsers to preload resources while waiting…
Go Programming
How to Show Flash Messages in Go web applications (with Echo framework)
Learn how to implement flash messages in Go web applications using Echo framework and Gorilla Sessions to improve user experience by providing feedback after form…
Go Programming
User Authentication in Go Echo with JWT
Learn how to implement secure user authentication in Go using JWT (JSON Web Tokens) with the Echo framework. This step-by-step guide covers token creation,…
Go Programming
How to Control Router Access Permissions in Go Web Apps
Learn how to implement URL-based access control and route permissions in Go web applications using the chi router middleware. A practical guide to securing your Go…
Go Programming
Go middleware example. How to alter a handler result
Learn how to implement Go middleware to intercept and modify HTTP handler responses with practical examples using chi router, demonstrating request/response…