Fiber Framework Guide

Applies to: Fiber v2.50+, Go 1.21+, High-Performance REST APIs, Microservices

Overview

Fiber is an Express-inspired web framework built on top of Fasthttp, the fastest HTTP engine for Go. It is designed for ease of use with zero memory allocation and performance in mind.

Key Features:

• Express-like API (familiar to Node.js developers)
• Built on Fasthttp (10x faster than net/http)
• Zero memory allocation in hot paths
• Built-in middleware collection
• WebSocket support, rate limiting, template engines