Jin フレームワークで集中エラー処理を実装するにはどうすればよいですか?

<code class="go">type AppError struct {
    Code     int    `json:"code"`
    Message  string `json:"message"`
}

func JSONAppErrorReporter(errType gin.ErrorType) gin.HandlerFunc {
    return func(c *gin.Context) {
        c.Next()

        errors := c.Errors.ByType(errType)

        if len(errors) > 0 {
            err := errors[0].Err
            var parsedError *AppError

            switch err.(type) {
            case *AppError:
                parsedError = err.(*AppError)
            default:
                parsedError = &AppError{
                    code: http.StatusInternalServerError,
                    message: "Internal Server Error",
                }
            }

            c.IndentedJSON(parsedError.Code, parsedError)
            c.Abort()
        }
    }
}</code>

<code class="go">router.Use(JSONAppErrorReporter(gin.ErrorTypeAny))</code>

<code class="go">func fetchSingleHostGroup(c *gin.Context) {
    hostgroupID := c.Param("id")

    hostGroupRes, err := getHostGroupResource(hostgroupID)

    if err != nil {
        c.Error(err)
        return
    }

    c.JSON(http.StatusOK, *hostGroupRes)
}</code>

<code class="go">router := gin.Default()
router.GET("/hostgroups/:id", fetchSingleHostGroup)
router.Run(":3000")</code>