Refer to this message: {{.Message}}
`)) type htmlErrorTemplateCtx struct { Code int CodeText string Message string } type ErrorWriter func(c echo.Context, err error) error var ( JSONWriter = func(c echo.Context, err error) error { if httpError, ok := err.(HTTPError); ok { jsonStr, err := json.Marshal(map[string]interface{}{ "code": httpError.Code(), "ok": false, "message": httpError.Error(), "error": err, }) if err != nil { jsonStr, err = json.Marshal(map[string]interface{}{ "code": httpError.Code(), "ok": false, "message": httpError.Error(), "error": nil, }) if err != nil { return err } } return c.JSONBlob(httpError.Code(), jsonStr) } return c.JSON(500, map[string]interface{}{ "code": 500, "ok": false, "message": err.Error(), }) } HTMLWriter = func(c echo.Context, err error) error { errContext := htmlErrorTemplateCtx{ Code: 500, Message: "Internal Server Error", } if httpError, ok := err.(HTTPError); ok { errContext.Code = httpError.Code() errContext.Message = httpError.Error() } else { errContext.Message = err.Error() } errContext.CodeText = http.StatusText(errContext.Code) c.Response().Status = errContext.Code c.Response().Header().Set(echo.HeaderContentType, echo.MIMETextHTMLCharsetUTF8) return htmlErrorTemplate.Execute(c.Response().Writer, errContext) } ) func Middleware(errorWriter ErrorWriter) func(next echo.HandlerFunc) echo.HandlerFunc { return func(next echo.HandlerFunc) echo.HandlerFunc { return func(c echo.Context) error { defer func() { if err := recover(); err != nil { if c.Get("devel") == true { errorWriter(c, fmt.Errorf("panic: %v; stacktrace: %s", err, string(debug.Stack()))) } else { errorWriter(c, fmt.Errorf("panic: %v", err)) } } }() err := next(c) if err != nil { if errEcho, ok := err.(*echo.HTTPError); ok { err = NewHttp(errEcho.Code, fmt.Errorf("%s", errEcho.Message)) } if err := errorWriter(c, err); err != nil { return err } } return nil } } }