Echo

Echo is a minimalist Go framework known for performance. v4 is stable and widely used for microservices.

When to Use

• Microservices: Lightweight REST APIs.
• Performance: Low memory footprint.
• Simplicity: No magic, just handlers and middleware.

Core Concepts

Context

c.Param(), c.JSON(). The context object wraps request/response.

Middleware

Centralized logic. e.Use(middleware.Logger()).