How to handle non-existing routes

[JustJordanT]

I am using a custom middleware for errors, how would I go about handling this. The following works fine for 404 for things like User not found and things like that but for routes that do not exist I am having trouble, with my I am just not using this the best way. Thanks.

func CustomHTTPErrorHandler(err error, c echo.Context) {
	var httpErr *echo.HTTPError
	if errors.As(err, &httpErr) {
		// If it's a 404 error, handle it specifically
		if httpErr.Code == http.StatusNotFound {
			err := c.JSON(http.StatusNotFound, echo.Map{"error": "Not Found"})
			if err != nil {
				return
			}
			return
		}
		if httpErr.Code == http.StatusUnauthorized {
			err := c.JSON(http.StatusUnauthorized, echo.Map{"error": httpErr.Message})
			if err != nil {
				return
			}
			return
		}
		if httpErr.Code == http.StatusBadRequest {
			err := c.JSON(http.StatusBadRequest, echo.Map{"error": httpErr.Message})
			if err != nil {
				return
			}
			return
		}
	}

	// Handle custom service errors
	var srvErr *repository.ServiceError
	if errors.As(err, &srvErr) {
		err := c.JSON(srvErr.Code, echo.Map{"error": srvErr.Message})
		if err != nil {
			return
		}
		return
	}

	
	// Default to internal server error for unexpected cases
	err = c.JSON(http.StatusInternalServerError, echo.Map{"error": "Internal Server Error"})
	if err != nil {
		return
	}
}

[aldas]

You could start by copying Echo default handler code and start adding your own types there. Default implementation is here

echo/echo.go

Line 419 in 60fc2fb

func (e *Echo) DefaultHTTPErrorHandler(err error, c Context) {