salix/print/lib/errorHandler.js

module.exports = app => {
    process.on('uncaughtException', err => {
        console.error(`Caught exception: ${err}`);
    });

    process.on('warning', () => {
        console.error(`My warning err`);
    });

    app.use(function(error, request, response, next) {
        if (!error.httpStatusCode)
            return next(error);

        response.status(error.httpStatusCode);
        response.json({
            httpStatusCode: error.httpStatusCode,
            name: error.name,
            message: error.message,
        });
    });
};