91 lines
2.5 KiB
JavaScript
91 lines
2.5 KiB
JavaScript
// import { inspect } from 'util';
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// import _ from 'lodash/fp';
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import accepts from 'accepts';
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import { homeLocation } from '../../../config/env';
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import { unwrapHandledError } from '../utils/create-handled-error.js';
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const isDev = process.env.NODE_ENV !== 'production';
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// const toString = Object.prototype.toString;
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// is full error or just trace
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// _.toString(new Error('foo')) => "Error: foo
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// Object.prototype.toString.call(new Error('foo')) => "[object Error]"
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// const isInspect = val => !val.stack && _.toString(val) === toString.call(val);
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// const stringifyErr = val => {
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// if (val.stack) {
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// return String(val.stack);
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// }
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// const str = String(val);
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// return isInspect(val) ?
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// inspect(val) :
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// str;
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// };
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// const createStackHtml = _.flow(
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// _.cond([
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// [isInspect, err => [err]],
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// // may be stack or just err.msg
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// [_.stubTrue, _.flow(stringifyErr, _.split('\n'), _.tail) ]
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// ]),
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// _.map(_.escape),
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// _.map(line => `<li>${line}</lin>`),
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// _.join('')
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// );
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// const createErrorTitle = _.cond([
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// [
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// _.negate(isInspect),
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// _.flow(stringifyErr, _.split('\n'), _.head, _.defaultTo('Error'))
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// ],
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// [_.stubTrue, _.constant('Error')]
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// ]);
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export default function prodErrorHandler() {
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// error handling in production.
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// disabling eslint due to express parity rules for error handlers
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return function(err, req, res, next) {
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// eslint-disable-line
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const handled = unwrapHandledError(err);
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// respect handled error status
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let status = handled.status || err.status || res.statusCode;
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if (!handled.status && status < 400) {
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status = 500;
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}
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res.status(status);
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// parse res type
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const accept = accepts(req);
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const type = accept.type('html', 'json', 'text');
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const redirectTo = handled.redirectTo || `${homeLocation}/`;
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const message =
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handled.message || 'Oops! Something went wrong. Please try again later';
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if (isDev) {
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console.error(err);
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}
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if (type === 'html') {
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if (typeof req.flash === 'function') {
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req.flash(handled.type || 'danger', message);
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}
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return res.redirectWithFlash(redirectTo);
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// json
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} else if (type === 'json') {
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res.setHeader('Content-Type', 'application/json');
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return res.send({
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type: handled.type || 'errors',
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message
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});
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// plain text
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} else {
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res.setHeader('Content-Type', 'text/plain');
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return res.send(message);
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}
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};
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}
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