本篇文章說明 gin-contrib/sessions 的部分函式和結構

sessions.Default

shortcut to get session

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session := sessions.Default(ctx)

sessions.Session.Get

Get returns the session value associated to the given key.

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session.Get("isLogin")

sessions.Session.Set

Set sets the session value associated to the given key.

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session.Set("isLogin", false)

sessions.Session.Save

Save saves all sessions used during the current request.

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session.Save()
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package main

import (
  "github.com/gin-contrib/sessions"
  "github.com/gin-contrib/sessions/cookie"
  "github.com/gin-gonic/gin"
)

func main() {
  r := gin.Default()
  store := cookie.NewStore([]byte("secret"))
  r.Use(sessions.Sessions("mysession", store))

  r.GET("/incr", func(c *gin.Context) {
    session := sessions.Default(c)
    var count int
    v := session.Get("count")
    if v == nil {
      count = 0
    } else {
      count = v.(int)
      count++
    }
    session.Set("count", count)
    session.Save()
    c.JSON(200, gin.H{"count": count})
  })
  r.Run(":8000")
}