How to use it in Gin about di HOT 2 CLOSED

func DI() gin.HandlerFunc {
    return func(c *gin.Context) {
        ctn, err := app.SubContainer()
        if err != nil {
            // TODO: handle error
            return
        }
        defer func() {
            if err := ctn.Delete(); err != nil {
                // TODO: handle error
            }
        }()

        c.Set("di-container", ctn)

        c.Next()
    }
}

r := gin.New()
r.Use(DI())

di.C = func(i interface{}) di.Container {
    if ctn, ok := i.(di.Container); ok {
        return ctn
    }

    c, ok := i.(c *gin.Context)
    if !ok {
        panic("could not get the container with C(): not a *gin.Context")
    }

    ctnI, ok := c.Get("di-container")
    if !ok {
        panic("could not get the container from the given *gin.Context")
    }

    ctn, ok := ctnI.(Container)
    if !ok {
        panic("could not cast the container from the given *gin.Context")
    }

    return ctn
}

func IntegralByLogin(c *gin.Context) {
    fmt.Print(di.Get(c, "nsq").(*producer.Producer).Test())
}

di.C = func(i interface{}) di.Container {
    return app
}