prismic-website/app/errors.js

A ready to use webserver (Express base) with utility methods for working with Prismic.io.

var express     = require('express');
var logger      = require('logfmt');

module.exports = function Errors(verbose) {

    return {
        notFound:   notFound,
        log:        logError,
        json:       jsonError,
        html:       htmlError
    };

    function notFound(req, res, next) {
        var err = new Error('Not Found');
        err.status = 404;
        next(err);
    }

    function logError(err, req, res, next) {
        if (err.status === 404 && !verbose) {
            return next(err);
        }
        logger.log({
            type: 'error',
            msg: err.message || 'middleware error',
            err: err.stack || 'no stack trace available'
        });
        next(err);
    }

    function jsonError(err, req, res, next) {
        if (req.path.slice(-5) !== '.json') {
            return next(err);
        }

        if (!req.accepts('application/json')) {
            return next(err);
        }

        res
            .status(err.status || 500)
            .json({ message: err.message || 'Something went wrong!' });
    }

    function htmlError(err, req, res, next) {
        res
            .status(err.status || 500)
            .send(err.message || 'Something went wrong!');
    }
};