vue-express-mongo-boilerplate/server/routes/errors.js

Express NodeJS application server boilerplate with Mongo and VueJS

"use strict";

let config  = require("../config");
let logger  = require("../core/logger");

let response  = require("../core/response");

module.exports = function(app, db) {

	app.use(function(err, req, res, next) {
		if (!err) {
			return next();
		}

		logger.error(err.stack);
		res.status(err.status || 500);

		// Respond with html page
		if (req.accepts("html")) {
			return res.render("500", {
				url: req.originalUrl,
				error: err
			});
		}

		// Respond with json
		if (req.accepts("json")) {
			return response.json(res, null, response.SERVER_ERROR, err.message);
		}
	});

	app.use(function(req, res) {
		res.status(404);
		if (!config.isTestMode())
			logger.warn("404 error! URL:", req.url);

		// Respond with html page
		if (req.accepts("html")) {
			let err = new Error("404 Page Not Found");
			err.status = 404;
			return res.render("404", {
				url: req.originalUrl,
				error: err
			});
		}

		// Respond with json
		if (req.accepts("json")) {
			return response.json(res, null, response.NOT_FOUND);
		}
	});

};