added login_server

.gitignore

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+/node_modules

login_server/.env

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+MONGODB_URI=mongodb+srv://MaissaJ:<Maissa123>@cluster0.yi3ha.mongodb.net/UserDB?retryWrites=true&w=majority

login_server/api/User.js

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+const express = require('express');
+const router = express.Router();
+
+//mongodb user model
+const User = require('./../models/User');
+
+// Password handler
+const bcrypt = require('bcrypt');
+//signup
+router.post('/signup'), (req, res) => {
+    let {name, email, password, dateOfBirth} = req.body;
+    name = name.trim();
+    email = email.trim();
+    password = password.trim();
+    dateOfBirth = dateOfBirth.trim();
+
+    if (name == "" || email == "" || password == "" || dateOfBirth == "") {
+        res.json ({
+            status: "FAILED",
+            message: "Empty input fields!"
+        });
+    } else if (!/^[a-zA-Z ]*$/.test(name)) {
+        res.json ({
+            status: "FAILED",
+            message: "Invalid name entered"
+        })
+
+    } else if (!/^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/.test(email)) {
+        res.json ({
+            status: "FAILED",
+            message: "Invalid email entered"
+        })
+
+    } else if (!new Date(dateOfBirth).getTime()) {
+        res.json ({
+            status: "FAILED",
+            message: "Invalid date of birth entered"
+        })
+    } else if (password.length < 8 ) {
+        res.json ({
+            status: "FAILED",
+            message: "Password is too short!"
+        })
+    } else {
+        //checking if user already exists
+        User.find ({email}).then(result => {
+            if (result.length) {
+                //A user already exists
+                res.json ({
+                    status: "FAILED",
+                    message: "User with the provided email already exists"
+                })
+            } else {
+                // Try to create new user
+
+                // password handling
+                const saltRounds = 10;
+                bcrypt.hash(password, saltRounds).then(hashedPassword => {
+                    const newUser = new User({
+                        name,
+                        email,
+                        password: hashedPassword,
+                        dateOfBirth
+                    });
+
+                    newUser.save().then(result => {
+                        res.json({
+                            status: "SUCCESS",
+                            message: "signup successful",
+                            data: result,
+                        })
+                    })
+                    .catch(err => {
+                        res.json({
+                            status: "FAILED",
+                            message: "An error occured while saving user account!"
+                        })
+                    })
+
+                })
+                .catch(err => {
+                    res.json({
+                        status: "FAILED",
+                        message: "An error occured while hashing password!"
+                    })
+                })
+            }
+
+        }).catch(err => {
+            console.log(err);
+            res.json ({
+                status: "FAILED",
+                message: "An error occured while checking for existing user!"
+            })
+        })
+    }
+
+
+}
+
+//signin
+router.post ('/signin', (req, res) => {
+    let {email, password} = req.body;
+    email = email.trim();
+    password = password.trim();
+
+    if (email == "" || password =="") {
+        res.json ({
+            status: "FAILED",
+            message: "Empty credentials supplied"
+        })
+    } else {
+        // Check if user exist 
+        User.find({email})
+        .then(data => {
+            if (data.length) {
+                //user exists
+
+                const hashedPassword = data[0].password;
+                bcrypt.compare(password, hashedPassword).then(result => {
+                    if (result) {
+                        // PAssword match
+                        res.json ({
+                            status: "SUCCESS",
+                            message: "Signin successful",
+                            data: data
+                        })
+                    } else {
+                        res.json ({
+                            status: "FAILED",
+                            message: "Invalid password entered!"
+                        })
+                    }
+                })
+                .catch (err => {
+                    res.json ({
+                        status: "FAILED",
+                        message: "An error occured while comparing passwords"
+                    })
+                })
+            } else {
+                res.json ({
+                    status: "FAILED",
+                    message: "Invalid credentials entered!"
+                })
+            }
+        })
+        .catch(err => {
+            res.json ({
+                status: "FAILED",
+                message: "An error occured while checking for existing user"
+            })
+        })
+    }
+
+})
+
+module.exports = router;

login_server/config/db.js

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+require('dotenv').config();
+const mongoose = require('mongoose');
+
+mongoose
+   .connect(process.env.MONGODB_URI, {
+    useNewUrlParser: true, 
+    useUnifieldTopology: true,
+})
+.then(()=> {
+    console.log("DB Connected");
+}) 
+
+.catch((err) => console.log(err));

login_server/models/User.js

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+const mongoose = require('mongoose');
+const schema = mongoose.schema;
+
+const UserSchema = new Schema ({
+    name: String,
+    email: String,
+    password: String,
+    dateOfBirth: Date
+});
+
+const User = mongoose.model ('User', UserSchema);
+
+module.exports = User;