Learn FIBER with Real Code Examples

Middleware pipeline for request/response handling

Router-based endpoint mapping

Context object passed to handlers

Dependency injection via closures or custom frameworks

Optional integration with ORMs and template engines

Handler receives request context

Middleware modifies context or executes logic

Handler processes business logic and optional DB calls

Template or JSON response generated

Response sent to client

Middleware pipeline

Router-based request handling

Handler/context pattern

Optional service injection

Template or API-first responses

REST API backend for web or mobile apps

Real-time chat applications using WebSocket

Microservices handling high concurrency

IoT and messaging services

Cloud-native serverless services

High performance and low memory usage

Express-inspired API for familiarity

Middleware-first architecture

Modular and composable design

Concurrency and parallelism friendly

Use prefork mode for multicore concurrency

Minimize middleware overhead for performance-critical routes

Use in-memory or distributed caching

Optimize database queries and indexing

Deploy using Docker or Kubernetes for horizontal scaling

Upgrade Go version and modules

Refactor deprecated Fiber API calls

Test routes, middleware, and handlers

Check compatibility with new Go or Fiber versions

Monitor performance and logs post-upgrade