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.
package main
import "github.com/gofiber/fiber"
func main() {
app := fiber.New()
app.Get("/", func(c *fiber.Ctx) {
c.Send("Hello, World 👋!")
})
app.Listen(3000)
}These tests are performed by TechEmpower and Go Web. If you want to see all results, please visit our Wiki.
First of all, download and install Go. 1.11 or higher is required.
Installation is done using the go get command:
go get -u github.com/gofiber/fiber- Robust routing
- Serve static files
- Extreme performance
- Low memory footprint
- API endpoints
- Middleware & Next support
- Rapid server-side programming
- Template engines
- WebSocket support
- Rate Limiter
- Translated in 15 languages
- And much more, explore Fiber
New gophers that make the switch from Node.js to Go are dealing with a learning curve before they can start building their web applications or microservices. Fiber, as a web framework, was created with the idea of minimalism and follows the UNIX way, so that new gophers can quickly enter the world of Go with a warm and trusted welcome.
Fiber is inspired by Express, the most popular web framework on the Internet. We combined the ease of Express and raw performance of Go. If you have ever implemented a web application in Node.js (using Express or similar), then many methods and principles will seem very common to you.
We listen to our users in issues, Discord channel and all over the Internet to create a fast, flexible and friendly Go web framework for any task, deadline and developer skill! Just like Express does in the JavaScript world.
Listed below are some of the common examples. If you want to see more code examples , please visit our Recipes repository or visit our hosted API documentation.
func main() {
app := fiber.New()
// GET /john
app.Get("/:name", func(c *fiber.Ctx) {
msg := fmt.Sprintf("Hello, %s 👋!", c.Params("name"))
c.Send(msg) // => Hello john 👋!
})
// GET /john/75
app.Get("/:name/:age/:gender?", func(c *fiber.Ctx) {
msg := fmt.Sprintf("👴 %s is %s years old", c.Params("name"), c.Params("age"))
c.Send(msg) // => 👴 john is 75 years old
})
// GET /dictionary.txt
app.Get("/:file.:ext", func(c *fiber.Ctx) {
msg := fmt.Sprintf("📃 %s.%s", c.Params("file"), c.Params("ext"))
c.Send(msg) // => 📃 dictionary.txt
})
// GET /flights/LAX-SFO
app.Get("/flights/:from-:to", func(c *fiber.Ctx) {
msg := fmt.Sprintf("💸 From: %s, To: %s", c.Params("from"), c.Params("to"))
c.Send(msg) // => 💸 From: LAX, To: SFO
})
// GET /api/register
app.Get("/api/*", func(c *fiber.Ctx) {
msg := fmt.Sprintf("✋ %s", c.Params("*"))
c.Send(msg) // => ✋ /api/register
})
app.Listen(3000)
}func main() {
app := fiber.New()
app.Static("/", "./public")
// => http://localhost:3000/js/script.js
// => http://localhost:3000/css/style.css
app.Static("/prefix", "./public")
// => http://localhost:3000/prefix/js/script.js
// => http://localhost:3000/prefix/css/style.css
app.Static("*", "./public/index.html")
// => http://localhost:3000/any/path/shows/index/html
app.Listen(3000)
}func main() {
app := fiber.New()
// Match any route
app.Use(func(c *fiber.Ctx) {
fmt.Println("🥇 First handler")
c.Next()
})
// Match all routes starting with /api
app.Use("/api", func(c *fiber.Ctx) {
fmt.Println("🥈 Second handler")
c.Next()
})
// GET /api/register
app.Get("/api/list", func(c *fiber.Ctx) {
fmt.Println("🥉 Last handler")
c.Send("Hello, World 👋!")
})
app.Listen(3000)
}📚 Show more code examples
Fiber defaults to the html/template when no view engine is set.
If you want to execute partials or use a different engine like amber, handlebars, mustache or pug etc..
Checkout our Template package that support multiple view engines.
import (
"github.com/gofiber/fiber"
"github.com/gofiber/template/pug"
)
func main() {
// You can setup Views engine before initiation app:
app := fiber.New(&fiber.Settings{
Views: pug.New("./views", ".pug"),
})
// OR after initiation app at any convenient location:
app.Settings.Views = pug.New("./views", ".pug"),
// And now, you can call template `./views/home.pug` like this:
app.Get("/", func(c *fiber.Ctx) {
c.Render("home", fiber.Map{
"title": "Homepage",
"year": 1999,
})
})
// ...
}📖 Group
func main() {
app := fiber.New()
// Root API route
api := app.Group("/api", cors()) // /api
// API v1 routes
v1 := api.Group("/v1", mysql()) // /api/v1
v1.Get("/list", handler) // /api/v1/list
v1.Get("/user", handler) // /api/v1/user
// API v2 routes
v2 := api.Group("/v2", mongodb()) // /api/v2
v2.Get("/list", handler) // /api/v2/list
v2.Get("/user", handler) // /api/v2/user
// ...
}📖 Logger
import (
"github.com/gofiber/fiber"
"github.com/gofiber/fiber/middleware"
)
func main() {
app := fiber.New()
// Default
app.Use(middleware.Logger())
// Custom logging format
app.Use(middleware.Logger("${method} - ${path}"))
// Custom Config
app.Use(middleware.LoggerWithConfig(middleware.LoggerConfig{
Next: func(ctx *fiber.Ctx) bool {
return ctx.Path() != "/private"
},
Format: "${method} - ${path}",
Output: io.Writer,
}))
app.Listen(3000)
}📖 CORS
import (
"github.com/gofiber/fiber"
"github.com/gofiber/cors"
)
func main() {
app := fiber.New()
// CORS with default config
app.Use(cors.New())
app.Listen(3000)
}Check CORS by passing any domain in Origin header:
curl -H "Origin: http://example.com" --verbose http://localhost:3000func main() {
app := fiber.New()
app.Static("./public")
app.Get("/demo", func(c *fiber.Ctx) {
c.Send("This is a demo!")
})
app.Post("/register", func(c *fiber.Ctx) {
c.Send("Welcome!")
})
// Last middleware to match anything
app.Use(func(c *fiber.Ctx) {
c.SendStatus(404)
// => 404 "Not Found"
})
app.Listen(3000)
}📖 JSON
type User struct {
Name string `json:"name"`
Age int `json:"age"`
}
func main() {
app := fiber.New()
app.Get("/user", func(c *fiber.Ctx) {
c.JSON(&User{"John", 20})
// => {"name":"John", "age":20}
})
app.Get("/json", func(c *fiber.Ctx) {
c.JSON(fiber.Map{
"success": true,
"message": "Hi John!",
})
// => {"success":true, "message":"Hi John!"}
})
app.Listen(3000)
}import (
"github.com/gofiber/fiber"
"github.com/gofiber/websocket"
)
func main() {
app := fiber.New()
app.Get("/ws", websocket.New(func(c *websocket.Conn) {
for {
mt, msg, err := c.ReadMessage()
if err != nil {
log.Println("read:", err)
break
}
log.Printf("recv: %s", msg)
err = c.WriteMessage(mt, msg)
if err != nil {
log.Println("write:", err)
break
}
}
}))
app.Listen(3000)
// ws://localhost:3000/ws
}📖 Recover
import (
"github.com/gofiber/fiber"
"github.com/gofiber/fiber/middleware"
)
func main() {
app := fiber.New()
app.Use(middleware.Recover())
app.Get("/", func(c *fiber.Ctx) {
panic("normally this would crash your app")
})
app.Listen(3000)
}The Fiber middleware modules listed here are maintained by the Fiber team.
| Middleware | Description | Built-in middleware |
|---|---|---|
| adaptor | Converter for net/http handlers to/from Fiber request handlers, special thanks to @arsmn! | - |
| basicauth | Basic auth middleware provides an HTTP basic authentication. It calls the next handler for valid credentials and 401 Unauthorized for missing or invalid credentials. | - |
| compress | Compression middleware for Fiber, it supports deflate, gzip and brotli by default. |
middleware.Compress() |
| cors | Enable cross-origin resource sharing (CORS) with various options. | - |
| csrf | Protect from CSRF exploits. | - |
| filesystem | FileSystem middleware for Fiber, special thanks and credits to Alireza Salary | - |
| favicon | Ignore favicon from logs or serve from memory if a file path is provided. | middleware.Favicon() |
| helmet | Helps secure your apps by setting various HTTP headers. | - |
| jwt | JWT returns a JSON Web Token (JWT) auth middleware. | - |
| keyauth | Key auth middleware provides a key based authentication. | - |
| limiter | Rate-limiting middleware for Fiber. Use to limit repeated requests to public APIs and/or endpoints such as password reset. | - |
| logger | HTTP request/response logger. | middleware.Logger() |
| pprof | Special thanks to Matthew Lee (@mthli) | - |
| recover | Recover middleware recovers from panics anywhere in the stack chain and handles the control to the centralized ErrorHandler. | middleware.Recover() |
| rewrite | Rewrite middleware rewrites the URL path based on provided rules. It can be helpful for backward compatibility or just creating cleaner and more descriptive links. | - |
| requestid | Request ID middleware generates a unique id for a request. | middleware.RequestID() |
| session | This session middleware is build on top of fasthttp/session by @savsgio MIT. Special thanks to @thomasvvugt for helping with this middleware. | - |
| template | This package contains 8 template engines that can be used with Fiber v1.10.x Go version 1.13 or higher is required. |
- |
| websocket | Based on Fasthttp WebSocket for Fiber with Locals support! | - |
This is a list of middlewares that are created by the Fiber community, please create a PR if you want to see yours!
- arsmn/fiber-swagger
- arsmn/fiber-casbin
- arsmn/fiber-introspect
- shareed2k/fiber_tracing
- shareed2k/fiber_limiter
- thomasvvugt/fiber-boilerplate
- arsmn/gqlgen
- kiyonlin/fiber_limiter
- juandiii/go-jwk-security
- Welcome to Fiber — an Express.js styled web framework written in Go with ❤️ — 03 Feb 2020
- Fiber released v1.7! 🎉 What's new and is it still fast, flexible and friendly? — 21 Feb 2020
- 🚀 Fiber v1.8. What's new, updated and re-thinked? — 03 Mar 2020
- Is switching from Express to Fiber worth it? 🤔 — 01 Apr 2020
- Creating Fast APIs In Go Using Fiber — 07 Apr 2020
- Building a Basic REST API in Go using Fiber - 23 Apr 2020
- 📺 Building a REST API using GORM and Fiber - 25 Apr 2020
- 🌎 Create a travel list app with Go, Fiber, Angular, MongoDB and Google Cloud Secret Manager - 25 Apr 2020
- Fiber v1.9.6 🔥 How to improve performance by 817% and stay fast, flexible and friendly? - 12 May 2020
- The road to web-based authentication with Fiber ⚡ - 20 May 2020
- Building an Express-style API in Go with Fiber - 10 June 2020
- 基于golang fiber和angular开发web - 19 June 2020
- 基于延迟计算令牌桶的gofiber频率限制中间件实现 - 20 June 2020
- Construir una API en Golang con Fiber 🇪🇸 - 28 June 2020
- 📺Why Go Fiber Is THE New Framework To Learn - 29 June 2020
- 解析Gofiber路由管理 - 08 July 2020
- 📺 Introduction to Fiber - An Express-inspired web framework - 25 July 2020
- 📺 How to use the Go Fiber JWT middleware - 30 July 2020
If you want to say thank you and/or support the active development of Fiber:
- Add a GitHub Star to the project.
- Tweet about the project on your Twitter.
- Write a review or tutorial on Medium, Dev.to or personal blog.
- Help us to translate our API Documentation via Crowdin
- Support the project by donating a cup of coffee.
Fiber is an open source project that runs on donations to pay the bills e.g. our domain name, gitbook, netlify and serverless hosting. If you want to support Fiber, you can ☕ buy a coffee here.
| User | Donation | |
|---|---|---|
 |
@destari | ☕ x 10 |
 |
@dembygenesis | ☕ x 5 |
 |
@thomasvvugt | ☕ x 5 |
 |
@hendratommy | ☕ x 5 |
 |
@ekaputra07 | ☕ x 5 |
 |
@jorgefuertes | ☕ x 5 |
 |
@candidosales | ☕ x 5 |
 |
@l0nax | ☕ x 3 |
 |
@ankush | ☕ x 3 |
 |
@bihe | ☕ x 3 |
 |
@justdave | ☕ x 3 |
 |
@koddr | ☕ x 1 |
 |
@lapolinar | ☕ x 1 |
 |
@diegowifi | ☕ x 1 |
 |
@ssimk0 | ☕ x 1 |
 |
@raymayemir | ☕ x 1 |
 |
@melkorm | ☕ x 1 |
 |
@marvinjwendt | ☕ x 1 |
 |
@toishy | ☕ x 1 |
Copyright (c) 2019-present Fenny and Contributors. Fiber is free and open-source software licensed under the MIT License. Official logo was created by Vic Shóstak and distributed under Creative Commons license (CC BY-SA 4.0 International).
Third-party library licenses