added project

.gitattributes

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+.gitattributes merge=copy-merge
+.gitignore merge=copy-merge
+package.json merge=copy-merge
+package-lock.json merge=copy-merge
+pnpm-lock.yaml merge=copy-merge
+setup.sh merge=copy-merge
+
+# __CRIO__
+__CRIO__/metadata.json merge=copy-merge
+
+# backend/
+backend/db/products.db merge=copy-merge
+backend/routes/auth.js merge=copy-merge
+backend/routes/cart.js merge=copy-merge
+backend/routes/product.js merge=copy-merge
+backend/routes/user.js merge=copy-merge
+backend/package.json merge=copy-merge
+backend/package-lock.json merge=copy-merge
+backend/pnpm-lock.yaml merge=copy-merge
+
+# public/
+public/avatar.png merge=copy-merge
+public/index.html merge=copy-merge
+public/icon.svg merge=copy-merge
+public/robots.txt merge=copy-merge
+public/favicon.ico merge=copy-merge
+public/manifest.json merge=copy-merge
+
+# src/
+src/setupTests.js merge=copy-merge
+
+
+# src/__tests__
+src/__tests__/Login.test.js merge=copy-merge
+src/__tests__/App.test.js merge=copy-merge
+src/__tests__/Register.test.js merge=copy-merge
+src/__tests__/Cart.test.js merge=copy-merge
+src/__tests__/Checkout.test.js merge=copy-merge
+src/__tests__/Products.test.js merge=copy-merge
+src/__tests__/ProductCard.test.js merge=copy-merge

.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+testReport.json
+.vercel
+
+package-lock.json
+pnpm-lock.yaml

.vscode/settings.json

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+{
+    "liveServer.settings.port": 8083
+}

__CRIO__/metadata.json

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+{
+    "module_id": "ME_QKART_FRONTEND_V2_MODULE_CHECKOUT",
+    "me_id": "ME_QKART_FRONTEND_V2"
+}
+

backend/.gitignore

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+node_modules
+node_modules/
+db/users.db
+yarn.lock

backend/config.json

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+{
+    "port": 8082,
+    "jwtSecret": "DeveloperSecretForEvaluationDoNotHardCodeLikeThisInRealLifeProductionApplications"
+}

backend/db.js

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+const nedb = require('nedb');
+const users = new nedb({ filename: 'db/users.db', autoload: true })
+const products = new nedb({ filename: 'db/products.db', autoload: true });
+
+module.exports.users = users
+module.exports.products = products

backend/db/products.db

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+{"name":"UNIFACTOR Mens Running Shoes","category":"Fashion","cost":50,"rating":5,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/42d4d057-8704-4174-8d74-e5e9052677c6.png","_id":"BW0jAAeDJmlZCF8i"}
+{"name":"YONEX Smash Badminton Racquet","category":"Sports","cost":100,"rating":5,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/64b930f7-3c82-4a29-a433-dbc6f1493578.png","_id":"KCRwjF7lN97HnEaY"}
+{"name":"Tan Leatherette Weekender Duffle","category":"Fashion","cost":150,"rating":4,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/ff071a1c-1099-48f9-9b03-f858ccc53832.png","_id":"PmInA797xJhMIPti"}
+{"name":"The Minimalist Slim Leather Watch","category":"Electronics","cost":60,"rating":5,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/5b478a4a-bf81-467c-964c-1881887799b7.png","_id":"TwMM4OAhmK0VQ93S"}
+{"name":"Atomberg 1200mm BLDC motor","category":"Home & Kitchen","cost":80,"rating":5,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/e8e0832c-8f16-4468-95a0-8aaed387a169.png","_id":"a4sLtEcMpzabRyfx"}
+{"name":"Bonsai Spirit Tree Table Lamp","category":"Home & Kitchen","cost":80,"rating":5,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/b49ee2dc-6458-42de-851d-b014ac24cd8e.png","_id":"upLK9JbQ4rMhTwt4"}
+{"name":"Stylecon 9 Seater RHS Sofa Set ","category":"Home & Kitchen","cost":650,"rating":3,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/7ad56699-20c9-4778-a783-4021e5f0864c.png","_id":"v4sLtEcMpzabRyf"}
+{"name":"Diamond Pendant (0.01 ct, IJ-SI)","category":"Fashion","cost":1000,"rating":5,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/95d6d42d-3a37-4efb-ad10-3bcbbb599856.png","_id":"v4sLtEcMpzabRyfx"}
+{"name":"Apple iPad Pro with Apple M1 chip","category":"Electronics","cost":900,"rating":5,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/82ac2e7b-e4dd-4a5b-8dbc-3260225d7eb2.png","_id":"w4sLtEcMpzabRyfx"}
+{"name":"OnePlus (55 inches) Q1 Series 4K","category":"Electronics","cost":1200,"rating":5,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/a9ca1e8b-8783-4be3-83f8-d06409016e15.png","_id":"x4sLtEcMpzabRyfx"}
+{"name":"Thinking, Fast and Slow","category":"Books","cost":15,"rating":5,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/cdb64440-5e95-4aaa-858b-8c12ee316d93.png","_id":"y4sLtEcMpzabRyfx"}
+{"name":"GREY DOUBLE BUTTON BLAZER","category":"Fashion","cost":75,"rating":4,"image":"https://crio-directus-assets.s3.ap-south-1.amazonaws.com/869ec5e2-52d2-4b8e-bc6b-57eace9ab39e.png","_id":"z4sLtEcMpzabRyfx"}

backend/index.js

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+const express = require('express');
+const cors = require('cors');
+const config = require('./config.json');
+const app = express();
+
+app.use(cors());
+app.use(express.json());
+
+const authRouter = require('./routes/auth')
+const productRouter = require('./routes/product')
+const cartRouter = require('./routes/cart')
+const userRouter = require('./routes/user')
+
+app.use('/api/v1/auth', authRouter);
+app.use('/api/v1/products', productRouter);
+app.use('/api/v1/cart', cartRouter);
+app.use('/api/v1/user', userRouter);
+
+const port = process.env.PORT || config.port
+app.listen(port, () => {
+    console.log(`QKart Backend running at port ${port}`);
+});
+

backend/package.json

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+{
+    "name": "react-me-backend",
+    "version": "0.1.0",
+    "private": true,
+    "scripts": {
+        "start": "node index.js"
+    },
+    "dependencies": {
+        "cors": "^2.8.5",
+        "express": "^4.17.1",
+        "jsonwebtoken": "^8.5.1",
+        "nanoid": "^3.1.12",
+        "nedb": "^1.8.0",
+        "@testing-library/dom": "^8.13.0",
+        "typescript": "^3.2.1",
+        "@babel/core": "^7.17.10"
+    }
+}

backend/routes/auth.js

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+var express = require("express");
+var router = express.Router();
+const { handleError } = require("../utils");
+var { users } = require("../db");
+const crypto = require("crypto");
+const jwt = require("jsonwebtoken");
+const config = require("../config.json");
+
+router.post("/register", (req, res) => {
+  console.log(`GET request to "/auth/register" received for user}`);
+
+  users.findOne({ username: req.body.username }, (err, user) => {
+    if (err) {
+      return handleError(res, err);
+    }
+    if (user) {
+      return res.status(400).json({
+        success: false,
+        message: "Username already exists",
+      });
+    }
+    // if (req.body.username.length < 6 || req.body.username.length > 32) {
+    //     return res.status(400).json({
+    //         success: false,
+    //         message:
+    //             'Username must be between 6 and 32 characters in length'
+    //     });
+    // }
+    // if (req.body.password.length < 6 || req.body.password.length > 32) {
+    //     return res.status(400).json({
+    //         success: false,
+    //         message:
+    //             'Password must be between 6 and 32 characters in length'
+    //     });
+    // }
+    users.insert({
+      username: req.body.username,
+      password: sha256(req.body.password),
+      balance: 5000,
+      cart: [],
+      addresses: [],
+    });
+
+    console.log(`Registered user: ${req.body.username}`);
+
+    return res.status(201).json({
+      success: true,
+    });
+  });
+});
+
+router.post("/login", (req, res) => {
+  console.log(`POST request to "/auth/login" received`);
+
+  users.findOne({ username: req.body.username }, (err, user) => {
+    if (err) {
+      return handleError(res, err);
+    }
+    if (!user) {
+      return res.status(400).json({
+        success: false,
+        message: "Username does not exist",
+      });
+    }
+    if (user.password !== sha256(req.body.password)) {
+      return res.status(400).json({
+        success: false,
+        message: "Password is incorrect",
+      });
+    }
+    const token = jwt.sign({ username: user.username }, config.jwtSecret, {
+      expiresIn: "6h",
+    });
+
+    console.log(`Logged in as user: ${req.body.username}`);
+
+    return res.status(201).json({
+      success: true,
+      token: token,
+      username: user.username,
+      balance: user.balance,
+    });
+  });
+});
+
+const sha256 = (input) =>
+  crypto.createHash("sha256").update(input, "utf8").digest("hex");
+
+module.exports = router;

backend/routes/cart.js

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+var express = require("express");
+var router = express.Router();
+const { handleError, verifyAuth, getProduct } = require("../utils");
+var { users, products } = require("../db");
+
+// Cart Controller
+router.get("/", verifyAuth, (req, res) => {
+  console.log(`GET request to "/cart" received`);
+
+  return res.status(200).json(req.user.cart);
+});
+
+router.post("/", verifyAuth, async (req, res) => {
+  console.log(`POST request to "/cart" received`);
+
+  products.findOne({ _id: req.body.productId }, async (err, product) => {
+    if (err) {
+      return handleError(res, err);
+    }
+    if (!product) {
+      return res
+        .status(404)
+        .json({ success: false, message: "Product doesn't exist" });
+    }
+
+    const index = await req.user.cart.findIndex(
+      (element) => element.productId === req.body.productId
+    );
+
+    if (index === -1) {
+      req.user.cart.push({
+        productId: req.body.productId,
+        qty: req.body.qty,
+      });
+    } else if (req.body.qty === 0) {
+      // delete
+      req.user.cart.splice(index, 1);
+    } else {
+      //modify
+      req.user.cart[index].qty = req.body.qty;
+    }
+    users.update(
+      { _id: req.user._id },
+      { $set: { cart: req.user.cart } },
+      {},
+      (err) => {
+        if (err) {
+          handleError(res, err);
+        }
+
+        console.log(
+          `User ${req.user.username}'s cart updated to`,
+          req.user.cart
+        );
+
+        return res.status(200).json(req.user.cart);
+      }
+    );
+  });
+});
+
+router.post("/checkout", verifyAuth, async (req, res) => {
+  console.log(
+    `POST request received to "/cart/checkout": ${req.user.username}`
+  );
+
+  let total = 0;
+  for (let element of req.user.cart) {
+    try {
+      const product = await getProduct(element.productId);
+      if (product == null) {
+        throw new Error("Invalid product in cart. ");
+      }
+      total = total + element.qty * product.cost;
+    } catch (error) {
+      handleError(res, error);
+    }
+  }
+  if (total === 0) {
+    return res.status(400).json({ success: false, message: "Cart is empty" });
+  }
+  if (req.user.balance < total) {
+    return res.status(400).json({
+      success: false,
+      message: "Wallet balance not sufficient to place order",
+    });
+  }
+  if (!req.body.addressId) {
+    return res.status(400).json({
+      success: false,
+      message: "Address not set",
+    });
+  }
+  const addressIndex = await req.user.addresses.findIndex(
+    (element) => element._id === req.body.addressId
+  );
+  if (addressIndex === -1) {
+    return res
+      .status(404)
+      .json({ success: false, message: "Bad address specified" });
+  }
+  req.user.balance -= total;
+  console.log("Mock order placed");
+  console.log("Cart", req.user.cart);
+  console.log("Total cost", total);
+  console.log("Address", req.user.addresses[addressIndex]);
+  // Now clear cart
+  req.user.cart = [];
+  users.update({ _id: req.user._id }, req.user, {}, (err) => {
+    if (err) {
+      handleError(res, err);
+    }
+    return res.status(200).json({
+      success: true,
+    });
+  });
+});
+
+module.exports = router;