33 lines
1.0 KiB
JavaScript
33 lines
1.0 KiB
JavaScript
// class that'll make all errors in the app categorisable into operational and non-operational errors
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/**
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* similar to Error class, but much cooler for this app
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*/
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exports.AppError = class extends Error {
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/**
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*
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* @param {string} message message that'll show up on err.message
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* @param {number} statusCode err status code
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*/
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constructor(message, statusCode) {
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super(message);
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this.statusCode = statusCode || 500;
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this.status = `${statusCode}`.startsWith('4') ? 'fail' : 'error';
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this.isOperational = true;
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// Error.captureStackTrace(this, this.constructor);
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}
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};
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// alternative for the ugly trycatch blocks
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/**
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* wrapper for async functions in the controller
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* @param {function} controller async function whose errors are to be caught
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* @returns a function similar to express's middleware which executes all the logic of the passed function
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*/
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exports.catchErrors = function (controller) {
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return (req, res, next) => {
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controller(req, res, next).catch(err => next(err));
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};
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};
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