golang框架如何实现分布式错误处理？

import (
    "github.com/gin-gonic/gin"
    "log"
    "net/http"
    "strconv"
)

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

    // 添加中间件来处理所有路由的错误
    router.Use(func(c *gin.Context) {
        c.Next()

        err := c.Errors.ByType(gin.ErrorTypePrivate).Last()
        if err != nil {
            // 分类错误
            var code int
            switch err.Type {
            case gin.ErrorTypePublic:
                code = http.StatusBadRequest
            case gin.ErrorTypePrivate:
                code = http.StatusInternalServerError
            }

            // 处理错误
            c.JSON(code, gin.H{
                "error": err.Error(),
            })
        }
    })

    router.GET("/get-user/:id", func(c *gin.Context) {
        idParam := c.Param("id")

        // 从参数中获取用户 ID
        id, err := strconv.ParseInt(idParam, 10, 64)
        if err != nil {
            c.Error(err).SetType(gin.ErrorTypePrivate)
            return
        }

        // 从数据库中获取用户
        user, err := getUser(id)
        if err != nil {
            c.Error(err)
            return
        }

        c.JSON(http.StatusOK, user)
    })

    router.Run(":8080")
}