96 lines
2.2 KiB
JavaScript
96 lines
2.2 KiB
JavaScript
// Copyright IBM Corp. 2016. All Rights Reserved.
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// Node module: strong-error-handler
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// This file is licensed under the MIT License.
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// License text available at https://opensource.org/licenses/MIT
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'use strict';
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var cloneAllProperties = require('../lib/clone.js');
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var httpStatus = require('http-status');
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module.exports = function buildResponseData(err, options) {
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// Debugging mode is disabled by default. When turned on (in dev),
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// all error properties (including) stack traces are sent in the response
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var isDebugMode = options.debug;
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if (Array.isArray(err) && isDebugMode) {
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err = serializeArrayOfErrors(err);
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}
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var data = Object.create(null);
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fillStatusCode(data, err);
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if (typeof err !== 'object') {
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err = {
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statusCode: 500,
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message: '' + err,
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};
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}
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if (isDebugMode) {
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fillDebugData(data, err);
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} else if (data.statusCode >= 400 && data.statusCode <= 499) {
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fillBadRequestError(data, err);
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} else {
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fillInternalError(data, err);
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}
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var safeFields = options.safeFields || [];
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fillSafeFields(data, err, safeFields);
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return data;
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};
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function serializeArrayOfErrors(errors) {
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var details = [];
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for (var ix in errors) {
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var err = errors[ix];
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if (typeof err !== 'object') {
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details.push('' + err);
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continue;
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}
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var data = {};
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cloneAllProperties(data, err);
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delete data.statusCode;
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details.push(data);
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}
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return {
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name: 'ArrayOfErrors',
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message: 'Failed with multiple errors, ' +
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'see `details` for more information.',
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details: details,
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};
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}
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function fillStatusCode(data, err) {
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data.statusCode = err.statusCode || err.status;
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if (!data.statusCode || data.statusCode < 400)
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data.statusCode = 500;
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}
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function fillDebugData(data, err) {
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cloneAllProperties(data, err);
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}
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function fillBadRequestError(data, err) {
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data.name = err.name;
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data.message = err.message;
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data.details = err.details;
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}
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function fillInternalError(data, err) {
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data.message = httpStatus[data.statusCode] || 'Unknown Error';
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}
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function fillSafeFields(data, err, safeFields) {
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if (!Array.isArray(safeFields)) {
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safeFields = [safeFields];
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}
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safeFields.forEach(function(field) {
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data[field] = err[field];
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});
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}
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