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    express-error-middlewares

    1.0.0 • Public • Published

    express-error-middlewares

    Express JS generic error middlewares for HTTP 404 not found and 500 server internal error.
    Created to skip always re-writing boilerplate code, and to make it easy to handle errors thrown from async route handlers.

    Examples

    Adding error middleware to express

    const express = require("express");
    const app = express();
    
    const { _404, _500 } = require("express-error-middlewares");
    
    app.use("/", require("./routes.js"));
    
    // Mount 404 and 500 error middleware last
    app.use(_404);
    app.use(_500);
    
    app.listen(3000, () => console.log("Server running on port 3000"));

    Wrapping async route handlers to use _500 error handling middleware if anything throws asynchronously

    const express = require("express");
    const router = express.Router();
    
    const { asyncWrap } = require("express-error-middlewares");
    
    router.get(
      "/some-route",
      asyncWrap(async (req, res) => {
        const err = new Error("Throwing from an async route handler");
    
        // Set any code you want on the error object, will be 500 if left empty
        err.code = 501;
        
        // Any error thrown, either explicitly or from another function called within this async route handler
        // Will be caught, and passed to the error middleware handler
        throw err;
    
        res.status(200).json({ ok: true });
      })
    );
    
    module.exports = router;

    License, Author and Contributing

    This project is developed and made available under the "MIT" License
    Pull requests are welcomed and open a issue if you have any questions!
    If you more questions, contact us via email
    Authors:

    Install

    npm i express-error-middlewares

    DownloadsWeekly Downloads

    6

    Version

    1.0.0

    License

    MIT

    Unpacked Size

    5.71 kB

    Total Files

    4

    Last publish

    Collaborators

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