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index.js
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index.js
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const express = require("express");
const app = express();
const dotenv = require("dotenv").config();
const fs = require("fs").promises;
const bodyParser = require('body-parser');
const bcrypt=require('bcrypt');
const saltRounds=10;
const jwt=require('jsonwebtoken');
require('crypto').randomBytes(64).toString('hex');
const port = process.env.PORT;
const passport=require('passport');
const passportfile=require('./passport.js')
app.listen(port, () => {
console.log(`Listen on the port ${port}`);
})
app.use(express.json());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }))
let obj = {
users: []
};
filePath = __dirname + '/data.json'
app.route('/register').post(userPost);
app.route('/login').post(loginApp);
app.route('/updateUser/:id').put(passport.authenticate('jwt',{session:false}) ,updateUser);
app.route('/deleteUser/:id').delete(passport.authenticate('jwt',{session:false}) ,deleteUser);
app.route('/listAllUsers').get(passport.authenticate('jwt',{session:false}) ,displayUsers);
async function userPost(req, res) {
let hashpassword=await bcrypt.hash(req.body.password,saltRounds);
let body = {
"empId": Math.floor(Math.random() * 10000),
"fullname": req.body.fullname,
"username": req.body.username,
"email": req.body.email,
"phoneno": req.body.phoneno,
"gender": req.body.gender,
"password": hashpassword
}
function validEmail(data, mail) {
let c = 0;
data.forEach((item) => { if (item.email == mail) { c++; } });
if (c == 0) return true;
return false;
}
let jsondata = JSON.stringify(obj);
fs.readFile(filePath).then((data) => {
obj = JSON.parse(data);
if (validEmail(obj.users, body.email)) {
obj.users.push(body);
let jsondata = JSON.stringify(obj);
fs.writeFile(filePath, jsondata).then(() => {
res.status(201).json({ "Status": "Registeration Successfull" });
}).catch((err) => {
res.status(400).json({ "Status": "Registeration UnSuccessfull" });
});
}
else {
res.status(400).json({ "Status": "Email is Already Used" });
}
}).catch((err) => {
obj.users.push(body);
let jsondata = JSON.stringify(obj)
fs.writeFile(filePath, jsondata).then(() => {
res.status(201).json({ "Status": "Registeration Successfull You are First User" });
}).catch((err) => {
res.status(403).json({ "Status": `Data is not Valid ${err}` });
});
})
}
async function loginApp(req, res) {
let loginBody = {
"email": req.body.email,
"password": req.body.password,
"cpassword": req.body.cpassword
}
function validUser(data, mail) {
let c = 0;
let userData;
data.forEach((item) => { if (item.email == mail) { c++; userData = item; } });
return (c == 1) ? userData : "notfound";
}
fs.readFile(filePath).then((data) => {
obj = JSON.parse(data);
if (validUser(obj.users, loginBody.email) != "notfound") {
let userData = validUser(obj.users, loginBody.email);
async function passwordMatch(userData){
let passwordStaus=await bcrypt.compare(loginBody.password,userData.password);
console.log(passwordStaus);
if(passwordStaus==true){
let cpasswordStaus=await bcrypt.compare(loginBody.cpassword,userData.password);
if(cpasswordStaus==true){
const jwtToken=jwt.sign({id:userData.empId,email:userData.email},process.env.TOKEN_SECRET);
res.status(200).json({
"Status": "Login Successfull and User Info",
"Employee Id": userData.empId,
"Username": userData.username,
"Full Name": userData.fullname,
"User Email": userData.email,
"User Phone Number": userData.phoneno,
"User Gender": userData.gender,
"TOKEN":jwtToken
});
}
else {
res.status(401).json({ "Status": "Password and Confirm Password is not matched" });
}
}
else {
res.status(401).json({ "Status": "Password is Incorrect" });
}
}
passwordMatch(userData);
}
else {
res.status(401).json({ "Status": "Email is not valid" })
}
})
}
async function updateUser(req, res) {
let empId = req.params.id;
let fullname = req.body.fullname;
let username = req.body.username;
let email = req.body.email;
let phoneno = req.body.phoneno;
let gender = req.body.gender;
function validateEmpId(data, id) {
let c = 0;
let idx;
data.forEach((item, i) => { if (item.empId === parseInt(id)) { c++; idx = i; } });
return (c == 1) ? { "bool": true, "idx": idx } : false;
}
fs.readFile(filePath).then((data) => {
obj = JSON.parse(data);
let validId = validateEmpId(obj.users, empId);
if (validId.bool == true) {
obj.users[validId.idx].fullname = fullname;
obj.users[validId.idx].username = username;
obj.users[validId.idx].email = email;
obj.users[validId.idx].phoneno = phoneno;
obj.users[validId.idx].gender = gender;
let jsondata = JSON.stringify(obj);
fs.writeFile(filePath, jsondata).then(() => {
res.status(201).json({ "Status": `${empId} Detail is Updated Successfully` });
}).catch((err) => {
res.status(400).json({ "Status": "Updation Unsuccessfull" });
});
}
else {
res.status(400).json({ "Status": `${empId} is not Valid` });
}
})
}
async function deleteUser(req, res) {
let empId = req.params.id;
function validateEmpId(data, id) {
let c = 0;
let idx;
data.forEach((item, i) => { if (item.empId === parseInt(id)) { c++; idx = i; } });
return (c == 1) ? { "bool": true, "idx": idx } : false;
}
fs.readFile(filePath).then((data) => {
obj = JSON.parse(data);
let validId = validateEmpId(obj.users, empId);
if (validId.bool == true) {
obj.users.splice(obj.users[validId.idx], 1);
let jsondata = JSON.stringify(obj);
fs.writeFile(filePath, jsondata).then(() => {
res.status(201).json({ "Status": `${empId} User is deleted successfully` });
}).catch((err) => {
res.status(400).json({ "Status": "Deletion Unsuccessfull" });
})
}
else {
res.status(400).json({ "Status": `${empId} is not available` });
}
})
}
async function displayUsers(req,res){
fs.readFile(filePath).then((data)=>{
obj=JSON.parse(data);
res.status(200).json({"Status":"All Users Available", "users":obj.users});
}).catch((err)=>{
res.status(400).json({"Status":"Users is not available"});
})
}