tiny-essentials
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Collection of small, essential scripts designed to be used across various projects. These simple utilities are crafted for speed, ease of use, and versatility.
59 lines (58 loc) • 1.95 kB
JavaScript
/**
* @function errorsCallback
*
* Creates an Express error-handling middleware that filters and handles HTTP errors
* with a status code >= 400 using a custom callback function.
*
* If the error does not meet the criteria (e.g., status not defined or < 400), it delegates to the next middleware.
*
* @param {function(import('express').Request, import('express').Response, import('express').NextFunction, {
* code: number,
* path: string,
* originalUrl: string,
* err: Error
* }): void} callback - A function called when an error with valid status is detected.
* Receives parameters: (req, res, next, info)
* - `info.code`: HTTP status code.
* - `info.path`: `req.url` value.
* - `info.originalUrl`: `req.originalUrl` value.
* - `info.err`: The original error object.
*
* @returns {function(Error, import('express').Request, import('express').Response, import('express').NextFunction): void} Express middleware function: (err, req, res, next)
* @deprecated
*
* @example
* import errorsCallback from './errorsCallback.mjs';
*
* app.use(errorsCallback((req, res, next, info) => {
* res.status(info.code).json({
* error: true,
* message: info.err.message || 'Unknown error',
* path: info.path
* });
* }));
*/
export default function errorsCallback(callback) {
return function (err, req, res, next) {
// Err Code
// @ts-ignore
const errCode = Number(err.status);
// Error
if (
// @ts-ignore
(typeof err.status !== 'number' && typeof err.status !== 'string') ||
isNaN(errCode) ||
!isFinite(errCode) ||
errCode < 400)
next();
// Nope
else
callback(req, res, next, {
// @ts-ignore
code: err.status,
path: req.url,
originalUrl: req.originalUrl,
err: err,
});
};
}