70 lines
2.5 KiB
JavaScript
70 lines
2.5 KiB
JavaScript
'use strict';
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const { MulterError } = require("multer"),
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{ ValidationError } = require("joi"),
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{ Errors, LIMIT_FILE_SIZE_ERR } = require('../helpers/constants'),
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{ AppError } = require("../helpers/app_error"),
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env = require('../helpers/env'),
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utils = require('../helpers/utils'),
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debug = require('debug')('agm:errHandler');
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function createAppErrObj(tag = Errors.UNKNOWN_APP_ERROR) {
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return { error: { '.tag': tag } };
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}
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function createAppValidationErrObj(valError) {
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let errObj = createAppErrObj(Errors.INVALID_PARAM);
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if (!utils.isEmptyObj(valError) && valError.message) {
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errObj.error.message = valError.message;
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}
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return errObj;
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}
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/**
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* Handle Application error for a given request with the provided error object
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* @param {*} req The Request object of the request
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* @param {*} res The Response object of the request
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* @param {*} err The error object (runtime error object or App* error classes)
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* Notes: return HTTP statusCode for the custom App errors with 409 as default.
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* For Stripe errors the code will always be 402. The client should base on the .code value for detail error.
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* @returns
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*/
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function ErrorHandler(err, req, res, next) {
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const statusCode = err && err.statusCode || 409; // Application error default http status code
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try {
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if (err.type && err.type.startsWith('Stripe')) {
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/*
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For Stripe errors the code will always be 402. The client should base on the .code value for detail error.
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TODO: In Production mode => consider to filter Stripe errors thus sending back with less detail ??
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*/
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return res.status(402).send(err);
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}
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if (err instanceof ValidationError) {
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return res.status(statusCode).send(createAppValidationErrObj(err));
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}
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if (err instanceof AppError) {
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return res.status(err.statusCode).send(createAppErrObj(err.message));
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}
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// Duplication index error throwing from Mongoose model. For example: username, unitId
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if (typeof err === "object" && err.code === 11000) {
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return res.status(statusCode).send(createAppErrObj(Errors.DUPLICATED_VALUE));
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}
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if (err instanceof MulterError) {
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return res.status(statusCode).send(createAppErrObj(err.code == LIMIT_FILE_SIZE_ERR ? Errors.FILE_TOO_LARGE : Errors.INVALID_PARAM));
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}
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res.status(500).send(createAppErrObj(Errors.UNKNOWN_ERROR));
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} catch (error) {
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res.status(500).send(createAppErrObj(Errors.UNKNOWN_APP_ERROR));
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} finally {
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env.LOG_ALL_ERRORS && (debug(err));
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}
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}
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module.exports = { ErrorHandler }
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