Golang? ???? ?? ???? ?? ????? ?????. ?? ? ?? ???? Golang? ???? ??? ??? ??????? ???? ??????. ?? ? ??????? Golang? ?? ???? ?????? ???? ? ?????. ? ????? Golang?? ????? ???? ? ?????? ?? ???? ?????.

1. ?? Golang ? ?????

1. Gin

Gin? ??? ??? ??? ??? ???? ??? ???? ? ????????. Gin? API ???? ???? ???? ?? ??? Gin? REST API ? ??????? ??????? ???? ? ?? ?????. Gin? ????, ??? ???, JSON/XML ???? ?? ???? ? ??? ?????.

2. Beego

Beego? ???, ????, ??? ???, ORM? ?? ???? ? ?? ??? ???? ? ?????? ??? ??? ??? ??? ???? ??? ? ????????. Beego? ??? ? ??????? ?? ??? ? ??? RESTful API, Websocket ? ?? ??? ?????.

3. Echo

Echo? ?? ?????? ?? ?? ???? ???? ???, ????, ??? ??? ? ?? ??? ???? ??, ???, ??? ?? ? ????????. Echo? ??? ?? ??? RESTful API ? ???????? ???? ? ?? ?????.

2. Gin ????? ????

??? ? ?? ?????? Gin? ???? ??? ? ??????? ???? ??? ???????.

1. Install Gin

?? ??? ???? Gin ?????? ??? ? ????.

go get -u github.com/gin-gonic/gin

2. Hello World

??? Gin ?????? ???? ??? Hello World? ????.

package main

import "github.com/gin-gonic/gin"

func main() {
    r := gin.Default()
    r.GET("/", func(c *gin.Context) {
        c.String(200, "Hello, world!")
    })
    r.Run()
}

?? ??? ?????. Gin ????? ???. ?? ?? Gin ????? ???? "Hello, world!" ???? ???? GET ??? ?????. ????? Run ???? ???? ? ??????? ???? ???? ?? ?????.

curl? ???? ?????? ??:

$ curl http://localhost:8080/
Hello, world!

3. Routing

???? ??? ??? ??? ???? ? ??????? ?? ?? ?????.

??? ??? ????.

package main

import "github.com/gin-gonic/gin"

func main() {
    r := gin.Default()

    r.GET("/ping", func(c *gin.Context) {
        c.String(200, "pong")
    })

    r.GET("/hello/:name", func(c *gin.Context) {
        name := c.Param("name")
        c.String(200, "Hello, %s", name)
    })

    r.POST("/login", func(c *gin.Context) {
        username := c.PostForm("username")
        password := c.PostForm("password")
        c.JSON(200, gin.H{"username": username, "password": password})
    })

    r.Run()
}

??? ? ?? ??? ?????.

• /ping ??? "pong" ???? ?????.
• /hello/:name ??? ???? ??? ?? "Hello"? ?????. " , name" ? ????
• /login ???, POST ??? ???? ??? ??? ??? ????? ?????.

4. ????

????? ??? ???? ???? ??? ??? ??? ? ?? Gin ?????? ??? ?????.

??? Gin ????? ???? ????.

package main

import (
    "fmt"
    "github.com/gin-gonic/gin"
    "time"
)

func CustomMiddleware() gin.HandlerFunc {
    return func(c *gin.Context) {
        t := time.Now()
        fmt.Println("Starting middleware")
        c.Set("request_time", t)
        c.Next()
        fmt.Println("Ending middleware")
        latency := time.Since(t)
        fmt.Printf("Latency: %v
", latency)
    }
}

func main() {
    r := gin.Default()
    r.Use(CustomMiddleware())

    r.GET("/", func(c *gin.Context) {
        c.String(200, "Hello, world!")
    })

    r.Run()
}

??? ?? ??? ???? CustomMiddleware?? ???? ??? ?? ?? ??? ??? ??? ???? ???? ?? ??? ?????.

????? Gin ????? ???? ?? ???? ??? ??? ??? ???? "Hello, world!" ???? ??????.

??????? ???? ???? ?????? ??? ? ? ????.

Starting middleware
Ending middleware
Latency: 277.1μs

3. ??

? ????? Golang?? ????? ???? ? ?? ? ?????? Gin, Beego ? Echo? ???? ?????. ?? Gin ?????? ???? ??? ? ??????? ??? ??? ??? ? ????? ???? ??? ???????.

Golang ? ?? ??? ? ????? ??? ??? ? ? ????. ??? ??? ? ?????? ??? ?????? ????? ?? ??? ???? ?? ???? ?? ??? ?? ?? ??? ?????? ???? ???.

? ??? Golang ?? ? ????? ????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!