├── .gitignore
├── README.md
├── app.js
├── middlewares
    ├── cleanbody.js
    └── validateToken.js
├── package-lock.json
├── package.json
├── routes
    └── users.js
└── src
    └── users
        ├── helpers
            ├── generateJwt.js
            └── mailer.js
        ├── user.controller.js
        └── user.model.js


/.gitignore:
--------------------------------------------------------------------------------
1 | node_modules
2 | .env
3 | package-lock.json


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | [![Product Name Screen Shot](https://miro.medium.com/max/1920/1*bbN8C4TjOpsuZhMiI_aGow.jpeg)](https://pranesh-a-s.medium.com/how-to-build-simple-and-secure-rest-api-for-user-authentication-using-node-js-jwt-and-mongodb-2bdeb3e5427e)
 2 | 
 3 |                         
 4 | [![language](https://img.shields.io/github/languages/top/PraneshASP/node-authentication-jwt-mongodb)]("https://github.com/praneshasp/node-authentication-jwt-mongodb")
 5 | [![vulnerability](https://img.shields.io/snyk/vulnerabilities/github/PraneshASP/node-authentication-jwt-mongodb)](https://github.com/PraneshASP/node-authentication-jwt-mongodb)
 6 | [![repo size](https://img.shields.io/github/repo-size/PraneshASP/node-authentication-jwt-mongodb)](https://github.com/PraneshASP/node-authentication-jwt-mongodb)
 7 | [![node version](https://img.shields.io/node/v/npm)](https://github.com/PraneshASP/node-authentication-jwt-mongodb)
 8 | [![npm version](https://img.shields.io/npm/v/npm)](https://github.com/PraneshASP/node-authentication-jwt-mongodb)
 9 | 
10 | <!-- PROJECT LOGO -->
11 | <p align="center">
12 |   <h3 align="center">Simple and secure REST API for User Authentication!</h3>
13 |   <p align="center">
14 |      <a href="https://pranesh-a-s.medium.com/how-to-build-simple-and-secure-rest-api-for-user-authentication-using-node-js-jwt-and-mongodb-2bdeb3e5427e"><strong>Explore the post »</strong></a>
15 |      <br /> <br />
16 |     <a href="https://github.com/PraneshASP/node-authentication-jwt-mongodb/issues">Report Bug </a>
17 |     ·
18 |     <a href="https://github.com/PraneshASP/node-authentication-jwt-mongodb/issues"> Request Feature</a>
19 |   </p>
20 | </p>
21 | 
22 | <!-- ABOUT THE PROJECT -->
23 | 
24 | ### What's inside this repo?
25 | 
26 | 1. User signup/registration with Email verification.
27 | 2. User Login.
28 | 3. Forgot password and reset password.
29 | 4. Session management using JWT (JSON Web Tokens).
30 | 5. Bonus: Simple Referral System!
31 | 
32 | For a more detailed explanation of the code, you can refer to my medium post associated with this project. It is split into two parts.
33 | 
34 | - [Part I](https://pranesh-a-s.medium.com/how-to-build-simple-and-secure-rest-api-for-user-authentication-using-node-js-jwt-and-mongodb-2bdeb3e5427e) - Build User signup with email verification, forgot password and reset password.
35 | 
36 | - [Part II](https://pranesh-a-s.medium.com/jwt-integration-with-an-example-referral-system-using-nodejs-mongodb-and-expressjs-17be91b35f1c) - Integrate JWT and Build a Simple Referral System.
37 | 
38 | ### Built With
39 | 
40 | - [Node.js]() - JavaScript runtime built on Chrome's V8 JavaScript engine.
41 | - [Express.js]() - Minimal and flexible Node.js web application framework
42 | - [MongoDB]() - Cross-platform document-oriented database program
43 | 
44 | <!-- GETTING STARTED -->
45 | 
46 | ## Getting Started
47 | 
48 | To get a local copy up and running follow these simple steps :
49 | 
50 | ### Prerequisites
51 | 
52 | To run this project, you'll need to have the following installed:
53 | 
54 | - Node.js : [https://nodejs.org](https://nodejs.org)
55 | 
56 | - npm :
57 |   ```sh
58 |   npm install npm@latest -g
59 |   ```
60 | - MongoDB : [https://mongodb.com](https://mongodb.com) <br>
61 | 
62 | > You can also use MongoDB Atlas if you prefer.
63 | > <br>
64 | 
65 | ### Installation
66 | 
67 | 1. Register at [SendGrid](https://sendgrid.com) SendGrid and create an API KEY.
68 | 
69 | 2. Clone the repo :
70 |    ```sh
71 |    git clone https://github.com/PraneshASP/node-authentication-jwt-mongodb.git
72 |    ```
73 | 3. Install dependencies (use `sudo` if required) :
74 | 
75 |    ```sh
76 |    npm install
77 |    ```
78 | 
79 | 4. Create `.env` file and configure :
80 |    ```JS
81 |    MONGO_URI = <MONGODB_URL>
82 |    JWT_SECRET = <SOME_LONG_SECURE_SECRET>
83 |    SG_APIKEY = <SENDGRID_API_KEY>  //For sending emails
84 |    ```
85 | 5. Start the server :
86 |    ```sh
87 |    npm start
88 |    ```
89 | 


--------------------------------------------------------------------------------
/app.js:
--------------------------------------------------------------------------------
 1 | const express = require("express");
 2 | const mongoose = require("mongoose");
 3 | const bodyParser = require("body-parser");
 4 | require("dotenv").config();
 5 | const PORT = 5000;
 6 | 
 7 | const authRoutes = require("./routes/users");
 8 | 
 9 | mongoose
10 |   .connect(process.env.MONGO_URI, {
11 |     dbName: "TheNodeAuth",
12 |     useNewUrlParser: true,
13 |     useUnifiedTopology: true,
14 |   })
15 |   .then(() => {
16 |     console.log("Database connection Success.");
17 |   })
18 |   .catch((err) => {
19 |     console.error("Mongo Connection Error", err);
20 |   });
21 | 
22 | const app = express();
23 | 
24 | app.use(bodyParser.json());
25 | app.use(bodyParser.urlencoded({ extended: true }));
26 | 
27 | app.get("/ping", (req, res) => {
28 |   return res.send({
29 |     error: false,
30 |     message: "Server is healthy",
31 |   });
32 | });
33 | 
34 | app.use("/users", authRoutes);
35 | 
36 | app.listen(PORT, () => {
37 |   console.log("Server started listening on PORT : " + PORT);
38 | });
39 | 


--------------------------------------------------------------------------------
/middlewares/cleanbody.js:
--------------------------------------------------------------------------------
 1 | const sanitize = require("mongo-sanitize");
 2 | 
 3 | module.exports = (req, res, next) => {
 4 |   try {
 5 |     req.body = sanitize(req.body);
 6 |     next();
 7 |   } catch (error) {
 8 |     console.log("clean-body-error", error);
 9 |     return res.status(500).json({
10 |       error: true,
11 |       message: "Could not sanitize body",
12 |     });
13 |   }
14 | };
15 | 


--------------------------------------------------------------------------------
/middlewares/validateToken.js:
--------------------------------------------------------------------------------
 1 | const jwt = require("jsonwebtoken");
 2 | require("dotenv").config();
 3 | 
 4 | const User = require("../src/users/user.model");
 5 | 
 6 | async function validateToken(req, res, next) {
 7 |   const authorizationHeader = req.headers.authorization;
 8 |   let result;
 9 |   if (!authorizationHeader)
10 |     return res.status(401).json({
11 |       error: true,
12 |       message: "Access token is missing",
13 |     });
14 | 
15 |   const token = req.headers.authorization.split(" ")[1]; // Bearer <token>
16 |   const options = {
17 |     expiresIn: "1h",
18 |   };
19 |   try {
20 |     let user = await User.findOne({
21 |       accessToken: token,
22 |     });
23 |     // console.log(token);
24 |     if (!user) {
25 |       result = {
26 |         error: true,
27 |         message: `Authorization error`,
28 |       };
29 |       return res.status(403).json(result);
30 |     }
31 | 
32 |     result = jwt.verify(token, process.env.JWT_SECRET, options);
33 | 
34 |     if (!user.userId === result.id) {
35 |       result = {
36 |         error: true,
37 |         message: `Invalid token`,
38 |       };
39 | 
40 |       return res.status(401).json(result);
41 |     }
42 | 
43 |     result["referralCode"] = user.referralCode;
44 | 
45 |     req.decoded = result;
46 |     next();
47 |   } catch (err) {
48 |     // console.log(err);
49 |     if (err.name === "TokenExpiredError") {
50 |       result = {
51 |         error: true,
52 |         message: `TokenExpired`,
53 |       };
54 |     } else {
55 |       result = {
56 |         error: true,
57 |         message: `Authentication error`,
58 |       };
59 |     }
60 |     return res.status(403).json(result);
61 |   }
62 | }
63 | 
64 | module.exports = { validateToken };
65 | 


--------------------------------------------------------------------------------
/package-lock.json:
--------------------------------------------------------------------------------
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  2 |   "name": "auth",
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  4 |   "lockfileVersion": 1,
  5 |   "requires": true,
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220 |         "cookie-signature": "1.0.6",
221 |         "debug": "2.6.9",
222 |         "depd": "~1.1.2",
223 |         "encodeurl": "~1.0.2",
224 |         "escape-html": "~1.0.3",
225 |         "etag": "~1.8.1",
226 |         "finalhandler": "~1.1.2",
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229 |         "methods": "~1.1.2",
230 |         "on-finished": "~2.3.0",
231 |         "parseurl": "~1.3.3",
232 |         "path-to-regexp": "0.1.7",
233 |         "proxy-addr": "~2.0.5",
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607 |     "regexp-clone": {
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611 |     },
612 |     "require_optional": {
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618 |         "semver": "^5.1.0"
619 |       }
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640 |       "optional": true,
641 |       "requires": {
642 |         "sparse-bitfield": "^3.0.3"
643 |       }
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649 |     },
650 |     "send": {
651 |       "version": "0.17.1",
652 |       "resolved": "https://registry.npmjs.org/send/-/send-0.17.1.tgz",
653 |       "integrity": "sha512-BsVKsiGcQMFwT8UxypobUKyv7irCNRHk1T0G680vk88yf6LBByGcZJOTJCrTP2xVN6yI+XjPJcNuE3V4fT9sAg==",
654 |       "requires": {
655 |         "debug": "2.6.9",
656 |         "depd": "~1.1.2",
657 |         "destroy": "~1.0.4",
658 |         "encodeurl": "~1.0.2",
659 |         "escape-html": "~1.0.3",
660 |         "etag": "~1.8.1",
661 |         "fresh": "0.5.2",
662 |         "http-errors": "~1.7.2",
663 |         "mime": "1.6.0",
664 |         "ms": "2.1.1",
665 |         "on-finished": "~2.3.0",
666 |         "range-parser": "~1.2.1",
667 |         "statuses": "~1.5.0"
668 |       },
669 |       "dependencies": {
670 |         "ms": {
671 |           "version": "2.1.1",
672 |           "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
673 |           "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg=="
674 |         }
675 |       }
676 |     },
677 |     "serve-static": {
678 |       "version": "1.14.1",
679 |       "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
680 |       "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
681 |       "requires": {
682 |         "encodeurl": "~1.0.2",
683 |         "escape-html": "~1.0.3",
684 |         "parseurl": "~1.3.3",
685 |         "send": "0.17.1"
686 |       }
687 |     },
688 |     "setprototypeof": {
689 |       "version": "1.1.1",
690 |       "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
691 |       "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
692 |     },
693 |     "sift": {
694 |       "version": "7.0.1",
695 |       "resolved": "https://registry.npmjs.org/sift/-/sift-7.0.1.tgz",
696 |       "integrity": "sha512-oqD7PMJ+uO6jV9EQCl0LrRw1OwsiPsiFQR5AR30heR+4Dl7jBBbDLnNvWiak20tzZlSE1H7RB30SX/1j/YYT7g=="
697 |     },
698 |     "sliced": {
699 |       "version": "1.0.1",
700 |       "resolved": "https://registry.npmjs.org/sliced/-/sliced-1.0.1.tgz",
701 |       "integrity": "sha1-CzpmK10Ewxd7GSa+qCsD+Dei70E="
702 |     },
703 |     "sparse-bitfield": {
704 |       "version": "3.0.3",
705 |       "resolved": "https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz",
706 |       "integrity": "sha1-/0rm5oZWBWuks+eSqzM004JzyhE=",
707 |       "optional": true,
708 |       "requires": {
709 |         "memory-pager": "^1.0.2"
710 |       }
711 |     },
712 |     "statuses": {
713 |       "version": "1.5.0",
714 |       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
715 |       "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
716 |     },
717 |     "string_decoder": {
718 |       "version": "1.1.1",
719 |       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
720 |       "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
721 |       "requires": {
722 |         "safe-buffer": "~5.1.0"
723 |       }
724 |     },
725 |     "toidentifier": {
726 |       "version": "1.0.0",
727 |       "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
728 |       "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
729 |     },
730 |     "type-is": {
731 |       "version": "1.6.18",
732 |       "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
733 |       "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
734 |       "requires": {
735 |         "media-typer": "0.3.0",
736 |         "mime-types": "~2.1.24"
737 |       }
738 |     },
739 |     "unpipe": {
740 |       "version": "1.0.0",
741 |       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
742 |       "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
743 |     },
744 |     "util-deprecate": {
745 |       "version": "1.0.2",
746 |       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
747 |       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
748 |     },
749 |     "utils-merge": {
750 |       "version": "1.0.1",
751 |       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
752 |       "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
753 |     },
754 |     "uuid": {
755 |       "version": "8.3.2",
756 |       "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
757 |       "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
758 |     },
759 |     "vary": {
760 |       "version": "1.1.2",
761 |       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
762 |       "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
763 |     }
764 |   }
765 | }
766 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "auth",
 3 |   "version": "1.0.0",
 4 |   "description": "",
 5 |   "main": "app.js",
 6 |   "scripts": {
 7 |     "start": "node app.js"
 8 |   },
 9 |   "keywords": [],
10 |   "author": "",
11 |   "license": "ISC",
12 |   "dependencies": {
13 |     "bcryptjs": "^2.4.3",
14 |     "body-parser": "^1.19.0",
15 |     "dotenv": "^8.2.0",
16 |     "express": "^4.17.1",
17 |     "joi": "^17.3.0",
18 |     "jsonwebtoken": "^8.5.1",
19 |     "mongo-sanitize": "^1.1.0",
20 |     "mongoose": "^5.11.10",
21 |     "nanoid": "^3.1.20",
22 |     "nodemailer": "^6.4.17",
23 |     "uuid": "^8.3.2"
24 |   }
25 | }
26 | 


--------------------------------------------------------------------------------
/routes/users.js:
--------------------------------------------------------------------------------
 1 | const express = require("express");
 2 | const router = express.Router();
 3 | 
 4 | const cleanBody = require("../middlewares/cleanbody");
 5 | const { validateToken } = require("../middlewares/validateToken");
 6 | 
 7 | const AuthController = require("../src/users/user.controller");
 8 | 
 9 | router.post("/signup", cleanBody, AuthController.Signup);
10 | 
11 | router.patch("/activate", cleanBody, AuthController.Activate);
12 | 
13 | router.post("/login", cleanBody, AuthController.Login);
14 | 
15 | router.patch("/forgot", cleanBody, AuthController.ForgotPassword);
16 | 
17 | router.patch("/reset", cleanBody, AuthController.ResetPassword);
18 | 
19 | router.get("/referred", validateToken, AuthController.ReferredAccounts);
20 | 
21 | router.get("/logout", validateToken, AuthController.Logout);
22 | 
23 | module.exports = router;
24 | 


--------------------------------------------------------------------------------
/src/users/helpers/generateJwt.js:
--------------------------------------------------------------------------------
 1 | const jwt = require("jsonwebtoken");
 2 | require("dotenv").config();
 3 | 
 4 | const options = {
 5 |   expiresIn: "1h",
 6 | };
 7 | 
 8 | async function generateJwt(email, userId) {
 9 |   try {
10 |     const payload = { email: email, id: userId };
11 |     const token = await jwt.sign(payload, process.env.JWT_SECRET, options);
12 |     return { error: false, token: token };
13 |   } catch (error) {
14 |     return { error: true };
15 |   }
16 | }
17 | 
18 | module.exports = { generateJwt };
19 | 


--------------------------------------------------------------------------------
/src/users/helpers/mailer.js:
--------------------------------------------------------------------------------
 1 | require("dotenv").config();
 2 | const nodemailer = require("nodemailer");
 3 | 
 4 | async function sendEmail(email, code) {
 5 |   try {
 6 |     const smtpEndpoint = "smtp.sendgrid.net";
 7 | 
 8 |     const port = 465;
 9 | 
10 |     const senderAddress = "NAME <ADDRESS>";
11 | 
12 |     var toAddress = email;
13 | 
14 |     const smtpUsername = "apikey";
15 | 
16 |     const smtpPassword = process.env.SG_APIKEY;
17 | 
18 |     var subject = "Verify your email";
19 | 
20 |     // The body of the email for recipients
21 |     var body_html = `<!DOCTYPE> 
22 |     <html>
23 |       <body>
24 |         <p>Your authentication code is : </p> <b>${code}</b>
25 |       </body>
26 |     </html>`;
27 | 
28 |     // Create the SMTP transport.
29 |     let transporter = nodemailer.createTransport({
30 |       host: smtpEndpoint,
31 |       port: port,
32 |       secure: true, // true for 465, false for other ports
33 |       auth: {
34 |         user: smtpUsername,
35 |         pass: smtpPassword,
36 |       },
37 |     });
38 | 
39 |     // Specify the fields in the email.
40 |     let mailOptions = {
41 |       from: senderAddress,
42 |       to: toAddress,
43 |       subject: subject,
44 |       html: body_html,
45 |     };
46 | 
47 |     let info = await transporter.sendMail(mailOptions);
48 |     return { error: false };
49 |   } catch (error) {
50 |     console.error("send-email-error", error);
51 |     return {
52 |       error: true,
53 |       message: "Cannot send email",
54 |     };
55 |   }
56 | }
57 | 
58 | module.exports = { sendEmail };
59 | 


--------------------------------------------------------------------------------
/src/users/user.controller.js:
--------------------------------------------------------------------------------
  1 | const Joi = require("joi");
  2 | require("dotenv").config();
  3 | const { v4: uuid } = require("uuid");
  4 | const { customAlphabet: generate } = require("nanoid");
  5 | 
  6 | const { generateJwt } = require("./helpers/generateJwt");
  7 | const { sendEmail } = require("./helpers/mailer");
  8 | const User = require("./user.model");
  9 | 
 10 | const CHARACTER_SET =
 11 |   "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 12 | 
 13 | const REFERRAL_CODE_LENGTH = 8;
 14 | 
 15 | const referralCode = generate(CHARACTER_SET, REFERRAL_CODE_LENGTH);
 16 | 
 17 | //Validate user schema
 18 | const userSchema = Joi.object().keys({
 19 |   email: Joi.string().email({ minDomainSegments: 2 }),
 20 |   password: Joi.string().required().min(4),
 21 |   confirmPassword: Joi.string().valid(Joi.ref("password")).required(),
 22 |   referrer: Joi.string(),
 23 | });
 24 | 
 25 | exports.Signup = async (req, res) => {
 26 |   try {
 27 |     const result = userSchema.validate(req.body);
 28 |     if (result.error) {
 29 |       console.log(result.error.message);
 30 |       return res.json({
 31 |         error: true,
 32 |         status: 400,
 33 |         message: result.error.message,
 34 |       });
 35 |     }
 36 | 
 37 |     //Check if the email has been already registered.
 38 |     var user = await User.findOne({
 39 |       email: result.value.email,
 40 |     });
 41 | 
 42 |     if (user) {
 43 |       return res.json({
 44 |         error: true,
 45 |         message: "Email is already in use",
 46 |       });
 47 |     }
 48 | 
 49 |     const hash = await User.hashPassword(result.value.password);
 50 | 
 51 |     const id = uuid(); //Generate unique id for the user.
 52 |     result.value.userId = id;
 53 | 
 54 |     delete result.value.confirmPassword;
 55 |     result.value.password = hash;
 56 | 
 57 |     let code = Math.floor(100000 + Math.random() * 900000);
 58 | 
 59 |     let expiry = Date.now() + 60 * 1000 * 15; //15 mins in ms
 60 | 
 61 |     const sendCode = await sendEmail(result.value.email, code);
 62 | 
 63 |     if (sendCode.error) {
 64 |       return res.status(500).json({
 65 |         error: true,
 66 |         message: "Couldn't send verification email.",
 67 |       });
 68 |     }
 69 |     result.value.emailToken = code;
 70 |     result.value.emailTokenExpires = new Date(expiry);
 71 | 
 72 |     //Check if referred and validate code.
 73 |     if (result.value.hasOwnProperty("referrer")) {
 74 |       let referrer = await User.findOne({
 75 |         referralCode: result.value.referrer,
 76 |       });
 77 |       if (!referrer) {
 78 |         return res.status(400).send({
 79 |           error: true,
 80 |           message: "Invalid referral code.",
 81 |         });
 82 |       }
 83 |     }
 84 |     result.value.referralCode = referralCode();
 85 |     const newUser = new User(result.value);
 86 |     await newUser.save();
 87 | 
 88 |     return res.status(200).json({
 89 |       success: true,
 90 |       message: "Registration Success",
 91 |       referralCode: result.value.referralCode,
 92 |     });
 93 |   } catch (error) {
 94 |     console.error("signup-error", error);
 95 |     return res.status(500).json({
 96 |       error: true,
 97 |       message: "Cannot Register",
 98 |     });
 99 |   }
100 | };
101 | 
102 | exports.Activate = async (req, res) => {
103 |   try {
104 |     const { email, code } = req.body;
105 |     if (!email || !code) {
106 |       return res.json({
107 |         error: true,
108 |         status: 400,
109 |         message: "Please make a valid request",
110 |       });
111 |     }
112 |     const user = await User.findOne({
113 |       email: email,
114 |       emailToken: code,
115 |       emailTokenExpires: { $gt: Date.now() },
116 |     });
117 | 
118 |     if (!user) {
119 |       return res.status(400).json({
120 |         error: true,
121 |         message: "Invalid details",
122 |       });
123 |     } else {
124 |       if (user.active)
125 |         return res.send({
126 |           error: true,
127 |           message: "Account already activated",
128 |           status: 400,
129 |         });
130 | 
131 |       user.emailToken = "";
132 |       user.emailTokenExpires = null;
133 |       user.active = true;
134 | 
135 |       await user.save();
136 | 
137 |       return res.status(200).json({
138 |         success: true,
139 |         message: "Account activated.",
140 |       });
141 |     }
142 |   } catch (error) {
143 |     console.error("activation-error", error);
144 |     return res.status(500).json({
145 |       error: true,
146 |       message: error.message,
147 |     });
148 |   }
149 | };
150 | 
151 | exports.Login = async (req, res) => {
152 |   try {
153 |     const { email, password } = req.body;
154 | 
155 |     if (!email || !password) {
156 |       return res.status(400).json({
157 |         error: true,
158 |         message: "Cannot authorize user.",
159 |       });
160 |     }
161 | 
162 |     //1. Find if any account with that email exists in DB
163 |     const user = await User.findOne({ email: email });
164 | 
165 |     // NOT FOUND - Throw error
166 |     if (!user) {
167 |       return res.status(404).json({
168 |         error: true,
169 |         message: "Account not found",
170 |       });
171 |     }
172 | 
173 |     //2. Throw error if account is not activated
174 |     if (!user.active) {
175 |       return res.status(400).json({
176 |         error: true,
177 |         message: "You must verify your email to activate your account",
178 |       });
179 |     }
180 | 
181 |     //3. Verify the password is valid
182 |     const isValid = await User.comparePasswords(password, user.password);
183 | 
184 |     if (!isValid) {
185 |       return res.status(400).json({
186 |         error: true,
187 |         message: "Invalid credentials",
188 |       });
189 |     }
190 | 
191 |     //Generate Access token
192 | 
193 |     const { error, token } = await generateJwt(user.email, user.userId);
194 |     if (error) {
195 |       return res.status(500).json({
196 |         error: true,
197 |         message: "Couldn't create access token. Please try again later",
198 |       });
199 |     }
200 |     user.accessToken = token;
201 |     await user.save();
202 | 
203 |     //Success
204 |     return res.send({
205 |       success: true,
206 |       message: "User logged in successfully",
207 |       accessToken: token,
208 |     });
209 |   } catch (err) {
210 |     console.error("Login error", err);
211 |     return res.status(500).json({
212 |       error: true,
213 |       message: "Couldn't login. Please try again later.",
214 |     });
215 |   }
216 | };
217 | 
218 | exports.ForgotPassword = async (req, res) => {
219 |   try {
220 |     const { email } = req.body;
221 |     if (!email) {
222 |       return res.send({
223 |         status: 400,
224 |         error: true,
225 |         message: "Cannot be processed",
226 |       });
227 |     }
228 |     const user = await User.findOne({
229 |       email: email,
230 |     });
231 |     if (!user) {
232 |       return res.send({
233 |         success: true,
234 |         message:
235 |           "If that email address is in our database, we will send you an email to reset your password",
236 |       });
237 |     }
238 | 
239 |     let code = Math.floor(100000 + Math.random() * 900000);
240 |     let response = await sendEmail(user.email, code);
241 | 
242 |     if (response.error) {
243 |       return res.status(500).json({
244 |         error: true,
245 |         message: "Couldn't send mail. Please try again later.",
246 |       });
247 |     }
248 | 
249 |     let expiry = Date.now() + 60 * 1000 * 15;
250 |     user.resetPasswordToken = code;
251 |     user.resetPasswordExpires = expiry; // 15 minutes
252 | 
253 |     await user.save();
254 | 
255 |     return res.send({
256 |       success: true,
257 |       message:
258 |         "If that email address is in our database, we will send you an email to reset your password",
259 |     });
260 |   } catch (error) {
261 |     console.error("forgot-password-error", error);
262 |     return res.status(500).json({
263 |       error: true,
264 |       message: error.message,
265 |     });
266 |   }
267 | };
268 | 
269 | exports.ResetPassword = async (req, res) => {
270 |   try {
271 |     const { token, newPassword, confirmPassword } = req.body;
272 |     if (!token || !newPassword || !confirmPassword) {
273 |       return res.status(403).json({
274 |         error: true,
275 |         message:
276 |           "Couldn't process request. Please provide all mandatory fields",
277 |       });
278 |     }
279 |     const user = await User.findOne({
280 |       resetPasswordToken: req.body.token,
281 |       resetPasswordExpires: { $gt: Date.now() },
282 |     });
283 |     if (!user) {
284 |       return res.send({
285 |         error: true,
286 |         message: "Password reset token is invalid or has expired.",
287 |       });
288 |     }
289 |     if (newPassword !== confirmPassword) {
290 |       return res.status(400).json({
291 |         error: true,
292 |         message: "Passwords didn't match",
293 |       });
294 |     }
295 |     const hash = await User.hashPassword(req.body.newPassword);
296 |     user.password = hash;
297 |     user.resetPasswordToken = null;
298 |     user.resetPasswordExpires = "";
299 | 
300 |     await user.save();
301 | 
302 |     return res.send({
303 |       success: true,
304 |       message: "Password has been changed",
305 |     });
306 |   } catch (error) {
307 |     console.error("reset-password-error", error);
308 |     return res.status(500).json({
309 |       error: true,
310 |       message: error.message,
311 |     });
312 |   }
313 | };
314 | 
315 | exports.ReferredAccounts = async (req, res) => {
316 |   try {
317 |     const { id, referralCode } = req.decoded;
318 | 
319 |     const referredAccounts = await User.find(
320 |       { referrer: referralCode },
321 |       { email: 1, referralCode: 1, _id: 0 }
322 |     );
323 |     return res.send({
324 |       success: true,
325 |       accounts: referredAccounts,
326 |       total: referredAccounts.length,
327 |     });
328 |   } catch (error) {
329 |     console.error("fetch-referred-error.", error);
330 |     return res.status(500).json({
331 |       error: true,
332 |       message: error.message,
333 |     });
334 |   }
335 | };
336 | 
337 | exports.Logout = async (req, res) => {
338 |   try {
339 |     const { id } = req.decoded;
340 | 
341 |     let user = await User.findOne({ userId: id });
342 | 
343 |     user.accessToken = "";
344 | 
345 |     await user.save();
346 | 
347 |     return res.send({ success: true, message: "User Logged out" });
348 |   } catch (error) {
349 |     console.error("user-logout-error", error);
350 |     return res.stat(500).json({
351 |       error: true,
352 |       message: error.message,
353 |     });
354 |   }
355 | };
356 | 


--------------------------------------------------------------------------------
/src/users/user.model.js:
--------------------------------------------------------------------------------
 1 | const mongoose = require("mongoose");
 2 | const bcrypt = require("bcryptjs");
 3 | const Schema = mongoose.Schema;
 4 | 
 5 | const userSchema = new Schema(
 6 |   {
 7 |     userId: { type: String, unique: true, required: true },
 8 |     email: { type: String, required: true, unique: true },
 9 |     active: { type: Boolean, default: false },
10 |     password: { type: String, required: true },
11 |     resetPasswordToken: { type: String, default: null },
12 |     resetPasswordExpires: { type: Date, default: null },
13 | 
14 |     emailToken: { type: String, default: null },
15 |     emailTokenExpires: { type: Date, default: null },
16 | 
17 |     accessToken: { type: String, default: null },
18 | 
19 |     referralCode: { type: String, unique: true },
20 |     referrer: { type: String, default: null },
21 |   },
22 |   {
23 |     timestamps: {
24 |       createdAt: "createdAt",
25 |       updatedAt: "updatedAt",
26 |     },
27 |   }
28 | );
29 | 
30 | const User = mongoose.model("user", userSchema);
31 | module.exports = User;
32 | 
33 | module.exports.hashPassword = async (password) => {
34 |   try {
35 |     const salt = await bcrypt.genSalt(10);
36 |     return await bcrypt.hash(password, salt);
37 |   } catch (error) {
38 |     throw new Error("Hashing failed", error);
39 |   }
40 | };
41 | module.exports.comparePasswords = async (inputPassword, hashedPassword) => {
42 |   try {
43 |     return await bcrypt.compare(inputPassword, hashedPassword);
44 |   } catch (error) {
45 |     throw new Error("Comparison failed", error);
46 |   }
47 | };
48 | 


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