<p align="center">
  <a href="https://gofiber.io">
  
  <picture>
    <source height="125" media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/gofiber/docs/master/static/img/v2/logo-dark.svg">
    <img height="125" alt="Fiber" src="https://raw.githubusercontent.com/gofiber/docs/master/static/img/v2/logo.svg">
  </picture>
  
  </a>
  <br>
  <!-- base64 flags are available at https://www.phoca.cz/cssflags/ -->
   <a href="https://github.com/gofiber/fiber/blob/master/.github/README.md">
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    <img height="20px" src="https://img.shields.io/badge/RU-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA0NTAgMzAwIj4NCjxwYXRoIGZpbGw9IiNmZmYiIGQ9Im0wLDBoNDUwdjEwMGgtNDUweiIvPg0KPHBhdGggZmlsbD0iIzAwZiIgZD0ibTAsMTAwaDQ1MHYxMDBoLTQ1MHoiLz4NCjxwYXRoIGZpbGw9IiNmMDAiIGQ9Im0wLDIwMGg0NTB2MTAwaC00NTB6Ii8+DQo8L3N2Zz4NCg==">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_es.md">
    <img height="20px" src="https://img.shields.io/badge/ES-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA3NTAgNTAwIj4NCjxwYXRoIGZpbGw9IiNjNjBiMWUiIGQ9Im0wLDBoNzUwdjUwMGgtNzUweiIvPg0KPHBhdGggZmlsbD0iI2ZmYzQwMCIgZD0ibTAsMTI1aDc1MHYyNTBoLTc1MHoiLz4NCjwvc3ZnPg0K">
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    <img height="20px" src="https://img.shields.io/badge/CN-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64, ">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_zh-TW.md">
    <img height="20px" src="https://img.shields.io/badge/TW-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64, ">
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    <img height="20px" src="https://img.shields.io/badge/DE-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiBoZWlnaHQ9IjYwMCIgdmlld0JveD0iMCAwIDUgMyI+DQo8cGF0aCBkPSJtMCwwaDV2M2gtNXoiLz4NCjxwYXRoIGZpbGw9IiNkMDAiIGQ9Im0wLDFoNXYyaC01eiIvPg0KPHBhdGggZmlsbD0iI2ZmY2UwMCIgZD0ibTAsMmg1djFoLTV6Ii8+DQo8L3N2Zz4NCg==">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_nl.md">
    <img height="20px" src="https://img.shields.io/badge/NL-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iOTAwIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIGhlaWdodD0iNjAwIiB2aWV3Qm94PSIwIDAgOSA2Ij4NCjxwYXRoIGZpbGw9IiMyMTQ2OGIiIGQ9Im0wLDBoOXY2aC05eiIvPg0KPHBhdGggZmlsbD0iI2ZmZiIgZD0ibTAsMGg5djRoLTl6Ii8+DQo8cGF0aCBmaWxsPSIjYWUxYzI4IiBkPSJtMCwwaDl2MmgtOXoiLz4NCjwvc3ZnPg0K">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_ko.md">
    <img height="20px" src="https://img.shields.io/badge/KO-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64, ">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_fr.md">
    <img height="20px" src="https://img.shields.io/badge/FR-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA5MDAgNjAwIj4NCjxwYXRoIGZpbGw9IiNlZDI5MzkiIGQ9Im0wLDBoOTAwdjYwMGgtOTAweiIvPg0KPHBhdGggZmlsbD0iI2ZmZiIgZD0ibTAsMGg2MDB2NjAwaC02MDB6Ii8+DQo8cGF0aCBmaWxsPSIjMDAyMzk1IiBkPSJtMCwwaDMwMHY2MDBoLTMwMHoiLz4NCjwvc3ZnPg0K">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_tr.md">
    <img height="20px" src="https://img.shields.io/badge/TR-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64, ">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_id.md">
    <img height="20px" src="https://img.shields.io/badge/ID-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA2MDAgNDAwIj4NCjxwYXRoIGZpbGw9IiNjZTExMjYiIGQ9Im0wLDBoNjAwdjIwMGgtNjAweiIvPg0KPHBhdGggZmlsbD0iI2ZmZiIgZD0ibTAsMjAwaDYwMHYyMDBoLTYwMHoiLz4NCjwvc3ZnPg0K">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_he.md">
    <img height="20px" src="https://img.shields.io/badge/HE-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64, ">
  </a>
   <a href="https://github.com/gofiber/fiber/blob/master/.github/README_sa.md">
     <img height="20px" src="https://img.shields.io/badge/SA-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTIwMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiBoZWlnaHQ9IjYwMCIgdmlld0JveD0iMCAwIDEyIDYiIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIj4NCjxwYXRoIGZpbGw9IiNjZTExMjYiIGQ9Im0wLDBoM3Y2aC0zeiIvPg0KPHBhdGggZmlsbD0iIzAwOWEwMCIgZD0ibTMsMGg5djJoLTl6Ii8+DQo8cGF0aCBmaWxsPSIjZmZmIiBkPSJtMywyaDl2MmgtOXoiLz4NCjxwYXRoIGQ9Im0zLDRoOXYyaC05eiIvPg0KPC9zdmc+DQo=">
   </a>
         <a href="https://github.com/gofiber/fiber/blob/master/.github/README_fa.md">
     <img height="20px" src="https://img.shields.io/badge/IR-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64, ">
   </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_it.md">
    <img height="20px" src="https://img.shields.io/badge/IT-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTUwMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiBoZWlnaHQ9IjEwMDAiIHZpZXdCb3g9IjAgMCAzIDIiPg0KPHBhdGggZmlsbD0iIzAwOTI0NiIgZD0ibTAsMGgxdjJoLTF6Ii8+DQo8cGF0aCBmaWxsPSIjZmZmIiBkPSJtMSwwaDF2MmgtMXoiLz4NCjxwYXRoIGZpbGw9IiNjZTJiMzciIGQ9Im0yLDBoMXYyaC0xeiIvPg0KPC9zdmc+DQo=">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_uk.md">
    <img height="20px" src="https://img.shields.io/badge/UK-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64, ">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_az.md">
    <img height="20px" src="https://img.shields.io/badge/AZ-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64, ">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_eg.md">
    <img height="20px" src="https://img.shields.io/badge/EG-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64, ">
  </a>
  <a href="https://github.com/gofiber/fiber/blob/master/.github/README_pl.md">
    <img height="20px" src="https://img.shields.io/badge/PL-flag.svg?color=555555&style=flat-square&logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAxMjgwIDgwMCI+DQo8cGF0aCBmaWxsPSIjZTllOGU3IiBkPSJtMCwwaDEyODB2NDAwaC0xMjgweiIvPg0KPHBhdGggZmlsbD0iI2Q0MjEzZCIgZD0ibTAsNDAwaDEyODB2NDAwaC0xMjgweiIvPg0KPC9zdmc+DQo=">
  </a>
  <br>
  <a href="https://pkg.go.dev/github.com/gofiber/fiber/v2#pkg-overview">
    <img src="https://img.shields.io/badge/%F0%9F%93%9A%20godoc-pkg-00ACD7.svg?color=00ACD7&style=flat-square">
  </a>
  <a href="https://goreportcard.com/report/github.com/gofiber/fiber/v2">
    <img src="https://img.shields.io/badge/%F0%9F%93%9D%20goreport-A%2B-75C46B?style=flat-square">
  </a>
  <a href="https://gocover.io/github.com/gofiber/fiber">
    <img src="https://img.shields.io/badge/%F0%9F%94%8E%20gocover-97.8%25-75C46B.svg?style=flat-square">
  </a>
  <a href="https://github.com/gofiber/fiber/actions?query=workflow%3ASecurity">
    <img src="https://img.shields.io/github/actions/workflow/status/gofiber/fiber/security.yml?branch=master&label=%F0%9F%94%91%20gosec&style=flat-square&color=75C46B">
  </a>
  <a href="https://github.com/gofiber/fiber/actions?query=workflow%3ATest">
    <img src="https://img.shields.io/github/actions/workflow/status/gofiber/fiber/test.yml?branch=master&label=%F0%9F%A7%AA%20tests&style=flat-square&color=75C46B">
  </a>
    <a href="https://docs.gofiber.io">
    <img src="https://img.shields.io/badge/%F0%9F%92%A1%20fiber-docs-00ACD7.svg?style=flat-square">
  </a>
  <a href="https://gofiber.io/discord">
    <img src="https://img.shields.io/discord/704680098577514527?style=flat-square&label=%F0%9F%92%AC%20discord&color=00ACD7">
  </a>
</p>
<p align="center">
<strong>Fiber</strong>は、<a href="https://github.com/expressjs/express">Express</a>に触発された<strong>Webフレームワーク</strong>です。<a href="https://go.dev/doc/">Go</a><strong> 最速</strong>のHTTPエンジンである<a href="https://github.com/valyala/fasthttp">Fasthttp</a>で作られています。<strong>ゼロメモリアロケーション</strong>と<strong>パフォーマンス</strong>を念頭に置いて設計されており、<strong>迅速</strong>な開発をサポートします。

</p>

## ⚡️ クイックスタート

```go
package main

import "github.com/gofiber/fiber/v2"

func main() {
    app := fiber.New()

    app.Get("/", func(c *fiber.Ctx) error {
        return c.SendString("Hello, World 👋!")
    })

    app.Listen(":3000")
}
```

## 🤖 ベンチマーク

これらのテストは[TechEmpower](https://www.techempower.com/benchmarks/#section=data-r19&hw=ph&test=plaintext)および[Go Web](https://github.com/smallnest/go-web-framework-benchmark)によって計測を行っています 。すべての結果を表示するには、 [Wiki](https://docs.gofiber.io/extra/benchmarks)にアクセスしてください。

<p float="left" align="middle">
  <img src="https://raw.githubusercontent.com/gofiber/docs/master/static/img/v2/plaintext.png" width="49%">
  <img src="https://raw.githubusercontent.com/gofiber/docs/master/static/img/v2/json.png" width="49%">
</p>

## ⚙️ インストール

Go がインストールされていることを確認してください ([ダウンロード](https://go.dev/dl/)). バージョン `1.17` またはそれ以上であることが必要です。

フォルダを作成し、フォルダ内で `go mod init github.com/your/repo` ([learn more](https://go.dev/blog/using-go-modules)) を実行してプロジェクトを初期化してください。その後、 Fiber を以下の [`go get`](https://pkg.go.dev/cmd/go/#hdr-Add_dependencies_to_current_module_and_install_them) コマンドでインストールしてください。

```bash
go get -u github.com/gofiber/fiber/v2
```

## 🎯 機能

-   堅牢な[ルーティング](https://docs.gofiber.io/guide/routing)
-   [静的ファイル](https://docs.gofiber.io/api/app#static)のサポート
-   究極の[パフォーマンス](https://docs.gofiber.io/extra/benchmarks)
-   [低メモリ](https://docs.gofiber.io/extra/benchmarks)フットプリント
-   [API エンドポイント](https://docs.gofiber.io/api/ctx)
-   [Middleware](https://docs.gofiber.io/api/middleware) と[Next](https://docs.gofiber.io/api/ctx#next)のサポート
-   [迅速](https://dev.to/koddr/welcome-to-fiber-an-express-js-styled-fastest-web-framework-written-with-on-golang-497)なサーバーサイドプログラミング
-   [Template engines](https://github.com/gofiber/template)
-   [WebSocket support](https://github.com/gofiber/websocket)
-   [Server-Sent events](https://github.com/gofiber/recipes/tree/master/sse)
-   [Rate Limiter](https://docs.gofiber.io/api/middleware/limiter)
-   [19 ヶ国語](https://docs.gofiber.io/)に翻訳
-   [Fiber](https://docs.gofiber.io/)をもっと知る

## 💡 哲学

[Node.js](https://nodejs.org/en/about/)から[Go](https://go.dev/doc/) に乗り換えようとしている新しい Gopher は Web フレームワークやマイクロサービスの構築を始める前に多くを学ばなければなりません。
しかし、 **Web フレームワーク**である Fiber は**ミニマリズム**と**UNIX 哲学**をもとに作られているため、新しい Gopher はスムーズに Go の世界に入ることができます。

Fiber は人気の高い Web フレームワークである Expressjs に**インスパイア**されています。
わたしたちは Express の**手軽さ**と Go の**パフォーマンス**を組み合わせました。
もしも、Web アプリケーションを Express 等の Node.js フレームワークで実装した経験があれば、多くの方法や原理がとても**馴染み深い**でしょう。

## ⚠️ 制限事項

-   Fiber は unsafe パッケージを使用しているため、最新の Go バージョンと互換性がない場合があります。Fiber 2.40.0 は、Go のバージョン 1.17 から 1.21 でテストされています。
-   Fiber は net/http インターフェースと互換性がありません。つまり、gqlgen や go-swagger など、net/http のエコシステムの一部であるプロジェクトを使用することができません。

## 👀 例

以下に一般的な例をいくつか示します。他のコード例をご覧になりたい場合は、 [Recipes リポジトリ](https://github.com/gofiber/recipes)または[API ドキュメント](https://docs.gofiber.io)にアクセスしてください。

#### 📖 [**基本的なルーティング**](https://docs.gofiber.io/#basic-routing)

```go
func main() {
    app := fiber.New()

    // GET /api/register
    app.Get("/api/*", func(c *fiber.Ctx) error {
        msg := fmt.Sprintf("✋ %s", c.Params("*"))
        return c.SendString(msg) // => ✋ register
    })

    // GET /flights/LAX-SFO
    app.Get("/flights/:from-:to", func(c *fiber.Ctx) error {
        msg := fmt.Sprintf("💸 From: %s, To: %s", c.Params("from"), c.Params("to"))
        return c.SendString(msg) // => 💸 From: LAX, To: SFO
    })

    // GET /dictionary.txt
    app.Get("/:file.:ext", func(c *fiber.Ctx) error {
        msg := fmt.Sprintf("📃 %s.%s", c.Params("file"), c.Params("ext"))
        return c.SendString(msg) // => 📃 dictionary.txt
    })

    // GET /john/75
    app.Get("/:name/:age/:gender?", func(c *fiber.Ctx) error {
        msg := fmt.Sprintf("👴 %s is %s years old", c.Params("name"), c.Params("age"))
        return c.SendString(msg) // => 👴 john is 75 years old
    })

    // GET /john
    app.Get("/:name", func(c *fiber.Ctx) error {
        msg := fmt.Sprintf("Hello, %s 👋!", c.Params("name"))
        return c.SendString(msg) // => Hello john 👋!
    })

    log.Fatal(app.Listen(":3000"))
}

```

#### 📖 [**ルートの命名**](https://docs.gofiber.io/api/app#name)

```go
func main() {
    app := fiber.New()

    // GET /api/register
    app.Get("/api/*", func(c *fiber.Ctx) error {
        msg := fmt.Sprintf("✋ %s", c.Params("*"))
        return c.SendString(msg) // => ✋ register
    }).Name("api")

    data, _ := json.MarshalIndent(app.GetRoute("api"), "", "  ")
    fmt.Print(string(data))
    // Prints:
    // {
    //    "method": "GET",
    //    "name": "api",
    //    "path": "/api/*",
    //    "params": [
    //      "*1"
    //    ]
    // }


    log.Fatal(app.Listen(":3000"))
}

```

#### 📖 [**静的ファイルの提供**](https://docs.gofiber.io/api/app#static)

```go
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

    log.Fatal(app.Listen(":3000"))
}

```

#### 📖 [**ミドルウェア & Next**](https://docs.gofiber.io/api/ctx#next)

```go
func main() {
	app := fiber.New()

	// Match any route
	app.Use(func(c *fiber.Ctx) error {
		fmt.Println("🥇 First handler")
		return c.Next()
	})

	// Match all routes starting with /api
	app.Use("/api", func(c *fiber.Ctx) error {
		fmt.Println("🥈 Second handler")
		return c.Next()
	})

	// GET /api/register
	app.Get("/api/list", func(c *fiber.Ctx) error {
		fmt.Println("🥉 Last handler")
		return c.SendString("Hello, World 👋!")
	})

	log.Fatal(app.Listen(":3000"))
}

```

<details>
  <summary>📚 その他のコード例を見る</summary>

### Views engines

📖 [Config](https://docs.gofiber.io/api/fiber#config)
📖 [Engines](https://github.com/gofiber/template)
📖 [Render](https://docs.gofiber.io/api/ctx#render)

view engine が設定されていない時は、Fiber のデフォルトは[html/template](https://pkg.go.dev/html/template/) になります。

パーシャルを実行したい場合や、[amber](https://github.com/eknkc/amber), [handlebars](https://github.com/aymerick/raymond), [mustache](https://github.com/cbroglie/mustache) ,[pug](https://github.com/Joker/jade) などの別のエンジンを使用したい場合など、

複数の view engine をサポートする [Template](https://github.com/gofiber/template) パッケージをご覧ください。

```go
package main

import (
    "github.com/gofiber/fiber/v2"
    "github.com/gofiber/template/pug"
)

func main() {
    // You can setup Views engine before initiation app:
    app := fiber.New(fiber.Config{
        Views: pug.New("./views", ".pug"),
    })

    // And now, you can call template `./views/home.pug` like this:
    app.Get("/", func(c *fiber.Ctx) error {
        return c.Render("home", fiber.Map{
            "title": "Homepage",
            "year":  1999,
        })
    })

    log.Fatal(app.Listen(":3000"))
}
```

### Grouping routes into chains

📖 [Group](https://docs.gofiber.io/api/app#group)

```go
func middleware(c *fiber.Ctx) error {
    fmt.Println("Don't mind me!")
    return c.Next()
}

func handler(c *fiber.Ctx) error {
    return c.SendString(c.Path())
}

func main() {
    app := fiber.New()

    // Root API route
    api := app.Group("/api", middleware) // /api

    // API v1 routes
    v1 := api.Group("/v1", middleware) // /api/v1
    v1.Get("/list", handler)           // /api/v1/list
    v1.Get("/user", handler)           // /api/v1/user

    // API v2 routes
    v2 := api.Group("/v2", middleware) // /api/v2
    v2.Get("/list", handler)           // /api/v2/list
    v2.Get("/user", handler)           // /api/v2/user

    // ...
}

```

### Middleware logger

📖 [Logger](https://docs.gofiber.io/api/middleware/logger)

```go
package main

import (
    "log"

    "github.com/gofiber/fiber/v2"
    "github.com/gofiber/fiber/v2/middleware/logger"
)

func main() {
    app := fiber.New()

    app.Use(logger.New())

    // ...

    log.Fatal(app.Listen(":3000"))
}
```

### Cross-Origin Resource Sharing (CORS)

📖 [CORS](https://docs.gofiber.io/api/middleware/cors)

```go
import (
    "log"

    "github.com/gofiber/fiber/v2"
    "github.com/gofiber/fiber/v2/middleware/cors"
)

func main() {
    app := fiber.New()

    app.Use(cors.New())

    // ...

    log.Fatal(app.Listen(":3000"))
}
```

`Origin`ヘッダーに任意のドメインを渡して CORS のチェックをします:

```bash
curl -H "Origin: http://example.com" --verbose http://localhost:3000
```

### Custom 404 response

📖 [HTTP Methods](https://docs.gofiber.io/api/ctx#status)

```go
func main() {
    app := fiber.New()

    app.Static("/", "./public")

    app.Get("/demo", func(c *fiber.Ctx) error {
        return c.SendString("This is a demo!")
    })

    app.Post("/register", func(c *fiber.Ctx) error {
        return c.SendString("Welcome!")
    })

    // Last middleware to match anything
    app.Use(func(c *fiber.Ctx) error {
        return c.SendStatus(404)
        // => 404 "Not Found"
    })

    log.Fatal(app.Listen(":3000"))
}
```

### JSON Response

📖 [JSON](https://docs.gofiber.io/api/ctx#json)

```go
type User struct {
    Name string `json:"name"`
    Age  int    `json:"age"`
}

func main() {
    app := fiber.New()

    app.Get("/user", func(c *fiber.Ctx) error {
        return c.JSON(&User{"John", 20})
        // => {"name":"John", "age":20}
    })

    app.Get("/json", func(c *fiber.Ctx) error {
        return c.JSON(fiber.Map{
            "success": true,
            "message": "Hi John!",
        })
        // => {"success":true, "message":"Hi John!"}
    })

    log.Fatal(app.Listen(":3000"))
}
```

### WebSocket Upgrade

📖 [Websocket](https://github.com/gofiber/websocket)

```go
import (
    "github.com/gofiber/fiber/v2"
    "github.com/gofiber/fiber/v2/middleware/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
      }
    }
  }))

  log.Fatal(app.Listen(":3000"))
  // ws://localhost:3000/ws
}
```

### Server-Sent Events

📖 [More Info](https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events)

```go
import (
    "github.com/gofiber/fiber/v2"
    "github.com/valyala/fasthttp"
)

func main() {
  app := fiber.New()

  app.Get("/sse", func(c *fiber.Ctx) error {
    c.Set("Content-Type", "text/event-stream")
    c.Set("Cache-Control", "no-cache")
    c.Set("Connection", "keep-alive")
    c.Set("Transfer-Encoding", "chunked")

    c.Context().SetBodyStreamWriter(fasthttp.StreamWriter(func(w *bufio.Writer) {
      fmt.Println("WRITER")
      var i int

      for {
        i++
        msg := fmt.Sprintf("%d - the time is %v", i, time.Now())
        fmt.Fprintf(w, "data: Message: %s\n\n", msg)
        fmt.Println(msg)

        w.Flush()
        time.Sleep(5 * time.Second)
      }
    }))

    return nil
  })

  log.Fatal(app.Listen(":3000"))
}
```

### Recover middleware

📖 [Recover](https://docs.gofiber.io/api/middleware/recover)

```go
import (
    "github.com/gofiber/fiber/v2"
    "github.com/gofiber/fiber/v2/middleware/recover"
)

func main() {
    app := fiber.New()

    app.Use(recover.New())

    app.Get("/", func(c *fiber.Ctx) error {
        panic("normally this would crash your app")
    })

    log.Fatal(app.Listen(":3000"))
}
```

</details>

## 🧬 内部ミドルウェア

以下は Fiber フレームワークに含まれるミドルウェアの一覧です。

| Middleware                                                                             | Description                                                                                                                                                                  |
| :------------------------------------------------------------------------------------- | :--------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [basicauth](https://github.com/gofiber/fiber/tree/master/middleware/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.        |
| [cache](https://github.com/gofiber/fiber/tree/master/middleware/cache)                 | Intercept and cache responses                                                                                                                                                |
| [compress](https://github.com/gofiber/fiber/tree/master/middleware/compress)           | Compression middleware for Fiber, it supports `deflate`, `gzip` and `brotli` by default.                                                                                     |
| [cors](https://github.com/gofiber/fiber/tree/master/middleware/cors)                   | Enable cross-origin resource sharing \(CORS\) with various options.                                                                                                          |
| [csrf](https://github.com/gofiber/fiber/tree/master/middleware/csrf)                   | Protect from CSRF exploits.                                                                                                                                                  |
| [encryptcookie](https://github.com/gofiber/fiber/tree/master/middleware/encryptcookie) | Encrypt middleware which encrypts cookie values.                                                                                                                             |
| [envvar](https://github.com/gofiber/fiber/tree/master/middleware/envvar)               | Expose environment variables with providing an optional config.                                                                                                              |
| [etag](https://github.com/gofiber/fiber/tree/master/middleware/etag)                   | ETag middleware that lets caches be more efficient and save bandwidth, as a web server does not need to resend a full response if the content has not changed.               |
| [expvar](https://github.com/gofiber/fiber/tree/master/middleware/expvar)               | Expvar middleware that serves via its HTTP server runtime exposed variants in the JSON format.                                                                               |
| [favicon](https://github.com/gofiber/fiber/tree/master/middleware/favicon)             | Ignore favicon from logs or serve from memory if a file path is provided.                                                                                                    |
| [filesystem](https://github.com/gofiber/fiber/tree/master/middleware/filesystem)       | FileSystem middleware for Fiber, special thanks and credits to Alireza Salary                                                                                                |
| [limiter](https://github.com/gofiber/fiber/tree/master/middleware/limiter)             | Rate-limiting middleware for Fiber. Use to limit repeated requests to public APIs and/or endpoints such as password reset.                                                   |
| [logger](https://github.com/gofiber/fiber/tree/master/middleware/logger)               | HTTP request/response logger.                                                                                                                                                |
| [monitor](https://github.com/gofiber/fiber/tree/master/middleware/monitor)             | Monitor middleware that reports server metrics, inspired by express-status-monitor                                                                                           |
| [pprof](https://github.com/gofiber/fiber/tree/master/middleware/pprof)                 | Special thanks to Matthew Lee \(@mthli\)                                                                                                                                     |
| [proxy](https://github.com/gofiber/fiber/tree/master/middleware/proxy)                 | Allows you to proxy requests to a multiple servers                                                                                                                           |
| [recover](https://github.com/gofiber/fiber/tree/master/middleware/recover)             | Recover middleware recovers from panics anywhere in the stack chain and handles the control to the centralized[ ErrorHandler](https://docs.gofiber.io/guide/error-handling). |
| [requestid](https://github.com/gofiber/fiber/tree/master/middleware/requestid)         | Adds a requestid to every request.                                                                                                                                           |
| [session](https://github.com/gofiber/fiber/tree/master/middleware/session)             | Session middleware. NOTE: This middleware uses our Storage package.                                                                                                          |
| [skip](https://github.com/gofiber/fiber/tree/master/middleware/skip)                   | Skip middleware that skips a wrapped handler is a predicate is true.                                                                                                         |
| [timeout](https://github.com/gofiber/fiber/tree/master/middleware/timeout)             | Adds a max time for a request and forwards to ErrorHandler if it is exceeded.                                                                                                |
| [keyauth](https://github.com/gofiber/keyauth)                                          | Key auth middleware provides a key based authentication.                                                                                                                     |
| [redirect](https://github.com/gofiber/redirect)                                        | Redirect middleware                                                                                                                                                          |
| [rewrite](https://github.com/gofiber/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.          |
| [adaptor](https://github.com/gofiber/adaptor)                                          | Converter for net/http handlers to/from Fiber request handlers, special thanks to @arsmn!                                                                                    |
| [helmet](https://github.com/gofiber/helmet)                                            | Helps secure your apps by setting various HTTP headers.                                                                                                                      |

## 🧬 外部ミドルウェア

[Fiber team](https://github.com/orgs/gofiber/people) により管理・運用されているミドルウェアの一覧です。

| Middleware                                        | Description                                                                                                           |
| :------------------------------------------------ | :-------------------------------------------------------------------------------------------------------------------- |
| [jwt](https://github.com/gofiber/jwt)             | JWT returns a JSON Web Token \(JWT\) auth middleware.                                                                 |
| [storage](https://github.com/gofiber/storage)     | Premade storage drivers that implement the Storage interface, designed to be used with various Fiber middlewares.     |
| [template](https://github.com/gofiber/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](https://github.com/gofiber/websocket) | Based on Fasthttp WebSocket for Fiber with Locals support!                                                            |

## 🕶️ Awesome List

その他の記事、ミドルウェア、サンプル、ツールについては、私たちの[awesome list](https://github.com/gofiber/awesome-fiber)をご覧ください。

## 👍 貢献する

`Fiber`に開発支援してくださるなら:

1. [GitHub Star](https://github.com/gofiber/fiber/stargazers)をつけてください 。
2. [あなたの 𝕏 (Twitter) で](https://x.com/intent/tweet?text=Fiber%20is%20an%20Express%20inspired%20%23web%20%23framework%20built%20on%20top%20of%20Fasthttp%2C%20the%20fastest%20HTTP%20engine%20for%20%23Go.%20Designed%20to%20ease%20things%20up%20for%20%23fast%20development%20with%20zero%20memory%20allocation%20and%20%23performance%20in%20mind%20%F0%9F%9A%80%20https%3A%2F%2Fgithub.com%2Fgofiber%2Ffiber)プロジェクトについてツイートしてください。
3. [Medium](https://medium.com/) 、 [Dev.to](https://dev.to/)、または個人のブログでレビューやチュートリアルを書いてください。
4. [cup of coffee](https://buymeacoff.ee/fenny)の寄付でプロジェクトを支援しましょう。

## ☕ サポーター

Fiber はオープンソースプロジェクトで、寄付によってドメイン名や gitbook、 netlify、そしてサーバーレスホスティングなどの費用を賄っています。もし Fiber を支援したければ ☕ [**こちらから**](https://buymeacoff.ee/fenny)。

|                                                            | User                                             | Donation |
| :--------------------------------------------------------- | :----------------------------------------------- | :------- |
| ![](https://avatars.githubusercontent.com/u/204341?s=25)   | [@destari](https://github.com/destari)           | ☕ x 10  |
| ![](https://avatars.githubusercontent.com/u/63164982?s=25) | [@dembygenesis](https://github.com/dembygenesis) | ☕ x 5   |
| ![](https://avatars.githubusercontent.com/u/56607882?s=25) | [@thomasvvugt](https://github.com/thomasvvugt)   | ☕ x 5   |
| ![](https://avatars.githubusercontent.com/u/27820675?s=25) | [@hendratommy](https://github.com/hendratommy)   | ☕ x 5   |
| ![](https://avatars.githubusercontent.com/u/1094221?s=25)  | [@ekaputra07](https://github.com/ekaputra07)     | ☕ x 5   |
| ![](https://avatars.githubusercontent.com/u/194590?s=25)   | [@jorgefuertes](https://github.com/jorgefuertes) | ☕ x 5   |
| ![](https://avatars.githubusercontent.com/u/186637?s=25)   | [@candidosales](https://github.com/candidosales) | ☕ x 5   |
| ![](https://avatars.githubusercontent.com/u/29659953?s=25) | [@l0nax](https://github.com/l0nax)               | ☕ x 3   |
| ![](https://avatars.githubusercontent.com/u/635852?s=25)   | [@bihe](https://github.com/bihe)                 | ☕ x 3   |
| ![](https://avatars.githubusercontent.com/u/307334?s=25)   | [@justdave](https://github.com/justdave)         | ☕ x 3   |
| ![](https://avatars.githubusercontent.com/u/11155743?s=25) | [@koddr](https://github.com/koddr)               | ☕ x 1   |
| ![](https://avatars.githubusercontent.com/u/29042462?s=25) | [@lapolinar](https://github.com/lapolinar)       | ☕ x 1   |
| ![](https://avatars.githubusercontent.com/u/2978730?s=25)  | [@diegowifi](https://github.com/diegowifi)       | ☕ x 1   |
| ![](https://avatars.githubusercontent.com/u/44171355?s=25) | [@ssimk0](https://github.com/ssimk0)             | ☕ x 1   |
| ![](https://avatars.githubusercontent.com/u/5638101?s=25)  | [@raymayemir](https://github.com/raymayemir)     | ☕ x 1   |
| ![](https://avatars.githubusercontent.com/u/619996?s=25)   | [@melkorm](https://github.com/melkorm)           | ☕ x 1   |
| ![](https://avatars.githubusercontent.com/u/31022056?s=25) | [@marvinjwendt](https://github.com/thomasvvugt)  | ☕ x 1   |
| ![](https://avatars.githubusercontent.com/u/31921460?s=25) | [@toishy](https://github.com/toishy)             | ☕ x 1   |

## ‎‍💻 Code Contributors

<img src="https://opencollective.com/fiber/contributors.svg?width=890&button=false" alt="Code Contributors" style="max-width:100%;">

## ⭐️ Stargazers

<img src="https://starchart.cc/gofiber/fiber.svg" alt="Stargazers over time" style="max-width: 100%">

## ⚠️ License

Copyright (c) 2019-present [Fenny](https://github.com/fenny) and [Contributors](https://github.com/gofiber/fiber/graphs/contributors). `Fiber` is free and open-source software licensed under the [MIT License](https://github.com/gofiber/fiber/blob/master/LICENSE). Official logo was created by [Vic Shóstak](https://github.com/koddr) and distributed under [Creative Commons](https://creativecommons.org/licenses/by-sa/4.0/) license (CC BY-SA 4.0 International).

**Third-party library licenses**

-   [colorable](https://github.com/mattn/go-colorable/blob/master/LICENSE)
-   [isatty](https://github.com/mattn/go-isatty/blob/master/LICENSE)
-   [runewidth](https://github.com/mattn/go-runewidth/blob/master/LICENSE)
-   [fasthttp](https://github.com/valyala/fasthttp/blob/master/LICENSE)
-   [bytebufferpool](https://github.com/valyala/bytebufferpool/blob/master/LICENSE)
-   [fwd](https://github.com/philhofer/fwd/blob/master/LICENSE.md)
-   [go-ole](https://github.com/go-ole/go-ole/blob/master/LICENSE)
-   [gopsutil](https://github.com/shirou/gopsutil/blob/master/LICENSE)
-   [msgp](https://github.com/tinylib/msgp/blob/master/LICENSE)
-   [schema](https://github.com/gorilla/schema/blob/master/LICENSE)
-   [uuid](https://github.com/google/uuid/blob/master/LICENSE)
-   [wmi](https://github.com/StackExchange/wmi/blob/master/LICENSE)
