Fiber 框架

類似於 Node.js express 寫法。

GitHub - gofiber/fiber: ⚡️ Express inspired web framework written in GoGitHub

回傳 JSON

package main

import "github.com/gofiber/fiber"

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

	app.Get("/", func(c *fiber.Ctx) {
		c.JSON(fiber.Map{"code": 200, "message": "Hello, World"})
	})

	app.Listen(3000)
}

parse body

	app.Post("/signup", func(c *fiber.Ctx) {
		fmt.Println(c.Body())
	})
	
	// name=test&city=ewe

使用 body parser

package main

import (
	"fmt"
	"log"

	"github.com/gofiber/fiber"
)

type User struct {
	Name string `json:"name"`
	City string `json:"city"`
}

func main() {
	app := fiber.New()
	app.Post("/signup", func(c *fiber.Ctx) {
		user := new(User)
		if err := c.BodyParser(user); err != nil {
			log.Fatal(err)
		}
		fmt.Println(user.Name)
	})
	app.Listen(3001)
}

struct 跟裡面的 field 記得要大寫

https://stackoverflow.com/a/24837507/4622645

取得 header

使用 get

app.Post("/signup", func(c *fiber.Ctx) { 
  ...
  fmt.Println(c.Get("authorization"))

加入 middleware

類似於 express 用法，傳入 next

	app.Post("/message", func(c *fiber.Ctx) {
	 ....do something
		c.Next()
	}, func(c *fiber.Ctx) {
	 ....do something after
	}

或是

func Auth(c *fiber.Ctx) {
  ...
  c.Next()
}

app.Post("/message", Auth, func(c *fiber.Ctx) {
 ...
}

取得 *http.Request

🧠 Ctx | Fiberdocs.gofiber.io

使用 context() 方法即可取得

app.Post("/message", func(c *fiber.Ctx) {
 ...
 c.Context()
}

取得 path params

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

取得 query string

app.Get("/", func(c *fiber.Ctx) error {
  c.Query("order")         // "desc"
  c.Query("brand")         // "nike"
  c.Query("empty", "nike") // "nike"
})

Form-data 檔案上傳

func UploadAvatar(c *fiber.Ctx) error {
	file, err := c.FormFile("document")

	// Save file to root directory:
	return c.SaveFile(file, fmt.Sprintf("./%s", file.Filename))
}

Swagger 文件整合

JSON-to-Go: Convert JSON to Go instantlymholt.github.io

https://ithelp.ithome.com.tw/articles/10224472