README

Fiber is an Express inspired web framework built on top of Fasthttp, the fastest HTTP engine for Go. Designed to ease things up for fast development with zero memory allocation and performance in mind.


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 ⚙️ Installation

Fiber requires Go version 1.26 or higher to run. If you need to install or upgrade Go, visit the official Go download page. To start setting up your project, create a new directory for your project and navigate into it. Then, initialize your project with Go modules by executing the following command in your terminal:

bash
go mod init github.com/your/repo


To learn more about Go modules and how they work, you can check out the Using Go Modules blog post.

After setting up your project, you can install Fiber with the go get command:

bash
go get -u github.com/gofiber/fiber/v3


This command fetches the Fiber package and adds it to your project's dependencies, allowing you to start building your web applications with Fiber.

 🚚 Migrate

Coming from Fiber v2? The Fiber CLI can migrate your project to v3 for you. Install it, then run the migrate command in your project's directory:

bash
go install github.com/gofiber/cli/fiber@latest
fiber migrate --to v3


Review the changes and run your tests afterwards. Run fiber migrate --help to see all options, and see the migration guide for what changed in v3.

 ⚡️ Quickstart

Getting started with Fiber is easy. Here's a basic example to create a simple web server that responds with "Hello, World 👋!" on the root path. This example demonstrates initializing a new Fiber app, setting up a route, and starting the server.

go title="Example"
package main

import (
    "log"

    "github.com/gofiber/fiber/v3"
)

func main() {
    // Initialize a new Fiber app
    app := fiber.New()

    // Define a route for the GET method on the root path '/'
    app.Get("/", func(c fiber.Ctx) error {
        // Send a string response to the client
        return c.SendString("Hello, World 👋!")
    })

    // Start the server on port 3000
    log.Fatal(app.Listen(":3000"))
}


This simple server is easy to set up and run. It introduces the core concepts of Fiber: app initialization, route definition, and starting the server. Just run this Go program, and visit http://localhost:3000 in your browser to see the message.

 Zero Allocation

Fiber is optimized for high-performance, meaning values returned from fiber.Ctx are not immutable by default and will be reused across requests. As a rule of thumb, you must only use context values within the handler and must not keep any references. Once you return from the handler, any values obtained from the context will be reused in future requests. Visit our documentation to learn more.

 🤖 Benchmarks

These tests are performed by TechEmpower. If you want to see all the results, please 

Top issues

Latest release

🧹 Updates

- Consolidate media-type parameter parsing into internal/mediatype (4750)
- Fix modernize and revive lint issues (4759)

 🐛 Fixes

- Fix client, session, basicauth and other bugs found in the audit (4752)

 🛠️ Maintenance

- bump github.com/gofiber/utils/v2 from 2.6.1 to 2.6.2 (4760)
- bump github.com/klauspost/compress from 1.20.1 to 1.20.3 (4757)
- bump github.com/molecule-man/go-brrr from 1.2.0 to 1.3.0 (4758)
- bump the golang-modules group with 3 updates (4755)
- bump release-drafter/release-drafter from 7.9.0 to 7.10.0 (4756)
- bump actions/setup-node from 7.0.