E-COMMERCE WITH MEAN STACK (Rest API)

Description

This repository is a Application software with NodeJS, Express, JWT, MongoDB, Angular, etc this application contains an REST API.

Installation

Using NodeJS, Express, Mongoose, Bcrypt, JWT, etc preferably.

DataBase

Using MongoDB preferably.

Apps

Using Postman, Insomnia, Talend API Tester, etc to feed the api.

Usage

$ git clone https://github.com/E-COMMERCE-Angular-10-Express-NodeJS-MongoDB-Rest-API.gif [NAME APP] 

$ npm install

$ npm run dev (Backend)

$ ng serve (Frontend)

Follow the following steps and you're good to go! Important:

Coding

Config

...
module.exports = {
  secretKey:
    process.env.SECRET_KEY ||
    "pbOweRnRbFOUJ6dqBZJgJV$MPPnPxhdxUz.L_rMqeFY0EOsZ8xH2K5r0FgUMir",
  port: process.env.PORT || 3000,
  DB: {
    URI:
      process.env.MONGO_URI ||
      "mongodb://127.0.0.1:27017/ecommercemeanstack_db",
    USER: process.env.MONGO_USER,
    PASSWORD: process.env.MONGO_PASSWORD,
  },
};

...

Routes

...
const { Router } = require('express')

const router = Router()
const userCTRL = require('../controllers/users.controller')
const { isAuth } = require('../middlewares/authentication')

router.get('/', isAuth, userCTRL.getUsers)
router.get('/:id', isAuth, userCTRL.getUser)
router.post('/', isAuth, userCTRL.saveUser)
router.put('/:id', isAuth, userCTRL.updateUser)
router.delete('/:id/:status', isAuth, userCTRL.deleteUser)
router.get('/image/:img', token_image, userCTRL.viewImage)

module.exports = router
...

Middlewares

...

const config = require("../config/config");
const jwt = require("jsonwebtoken");

const isAuth = (req, res, next) => {
  let token = req.get("Authorization");

  jwt.verify(token, config.secretKey, (err, user) => {
    if (err) {
      return res.status(500).json({
        ok: false,
        msg: "Token is invalid!",
      });
    }

    req.user = user.data;

    next();
  });
};

const token_image = (req, res, next) => {
  let token = req.query.token;

  jwt.verify(token, config.secretKey, (err, user) => {
    if (err) {
      return res.status(500).json({
        ok: false,
        msg: "Token is invalid!",
      });
    }

    req.user = user.data;

    next();
  });
};

module.exports = {
  isAuth,
  token_image
}

...

Controllers

...
 const Order = require("../models/Order");
const Product = require("../models/Product");

const getOrders = (req, res) => {
  Order.find({})
    .sort({ createdAt: "DESC" })
    .populate("client")
    .populate("orderItems.product")
    .exec((err, orders) => {
      return res.json(orders);
    });
};

const saveOrder = (req, res) => {
  const body = req.body;

  validateQty(body.orderItems, (resp) => {
    if (!resp)
      return res.status(401).json({
        ok: false,
        msg: "There are no products to save",
      });

    const order = new Order({
      payment: body.payment,
      client: body.client,
      orderItems: resp,
    });

    order.save((err, newOrder) => {
      if (err) {
        return res.status(401).json({
          ok: false,
          err,
        });
      }

      res.status(201).json({
        ok: true,
        order: newOrder,
      });
    });
  });
};

const validateQty = async (products, cb) => {
  const products_id = [];

  products.forEach((elem) => {
    products_id.push(elem.product_id);
  });

  const resp = [];

  Product.find()
    .where("_id")
    .in(products_id)
    .exec(async (err, data) => {
      for (const key of data) {
        const qty = products.find((p) => p.product_id == key._id).qty;
        if (qty <= key.stock) {
          const modify = await Product.findByIdAndUpdate(key._id, {
            stock: key.stock - qty,
          });

          if (modify != false) {
            resp.push({
              product: key._id,
              qty: qty,
            });
          }
          console.log(resp);
        }
      }

      cb(resp.length == 0 ? false : resp);
    });
};

module.exports = {
  getOrders,
  saveOrder,
};
...

Model

...
const mongoose = require("mongoose");

const Schema = mongoose.Schema;

const OrderSchema = new Schema({
  dateReg: {
    type: Date,
    default: Date.now,
  },
  payment: Number,
  client: {
    type: Schema.Types.ObjectId,
    ref: "Client",
  },
  orderItems: [
    {
      product: {
        type: Schema.Types.ObjectId,
        ref: "Product",
      },
      qty: Number,
    },
  ],
});

module.exports = mongoose.model("Order", OrderSchema);
...

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/DanielArturoAlejoAlvarez/E-COMMERCE-Angular-10-Express-NodeJS-MongoDB-Rest-API. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.