///index.js
const functions = require("firebase-functions");
const express = require("express");
const app = express();
const productRouter = require('./routes/productRoutes');
const globalErrorHandler = require('./controllers/errorController');
const AppError = require('./utils/appError');
// Compressing upcompressed files which is been sent to client such text.
if (process.env.NODE_ENV === 'development') {
app.use(morgan('dev'));
}
// app.use(express.static(path.join(__dirname, 'public')));
app.get('/', (req, res) => {
res.send('Hello World')
});
app.get('/homepage', (req, res) => {
res.send('Hello People of God')
});
app.use('/products', productRouter);
// Handing Unhandled Routes
app.all('*', (req, res, next) => {
next(new AppError(`Can't find ${req.originalUrl} on this server!`, 404));
});
app.use(globalErrorHandler);
exports.app = functions.https.onRequest(app);
///productRoutes.js
const express = require('express');
const {
getProduct,
getAllProduct,
} = require('./../controllers/productController');
const router = express.Router();
router
.route('/')
.get(getAllProduct);
router
.route('/:id')
.get(getProduct);
module.exports = router;
///productController.js
const AppError = require('../utils/appError');
const Product = require('../modals/productModels');
const catchAsync = require('../utils/catchAsync');
// GET SINGLE PRODUCT CONTROLLER
exports.getProduct = catchAsync(async (req, res, next) => {
const product = await Product.findById(req.params.id)
.populate('reviews');
if (!product) {
return next(new AppError('No product found with that ID', 404));
}
res.status(200).json({
status: 'success',
data: {
product
}
});
});
// GET ALL PRODUCT CONTROLLER
exports.getAllProduct = catchAsync(async (req, res, next) => {
const products = await Product.find();
res.status(200).json({
status: 'success',
results: products.length,
data: {
products
}
});
});
///server.js
const mongoose = require('mongoose');
const app = require('./index')
const dotenv = require('dotenv');
// CONNECTING TO MONGODB SERVER
dotenv.config({ path: './config.env' })
const DB = process.env.DATABASE.replace('<PASSWORD>', process.env.DATABASE_PASSWORD);
mongoose.connect(DB, {
useNewUrlParser: true,
safe: true,
strict: false,
useUnifiedTopology: true
}).then(con => console.log('DB connection successful'))
const port = process.env.PORT || 3000;
app.listen(port, () => {
console.log(`App running on port ${port}...`);
});
After running function serve on my terminal i can access the two '/' and 'homepage' app.get which return the res "Hello world" and "Hello people of God" but can't access app.use('/products', productRouter). Its does take some time to run and throw an error "{"code":"ECONNRESET"}" please why is this so.
Am expecting to get my list of products from my mongodb data base.
Related
so I am getting the the error : TypeError: app.use() requires a middleware function.
I am unsure why i made sure i exported the file, but I am a bit confused why. I think i linked it up correctly in my server file as well.
const express = require('express')
const mongoose = require('mongoose')
const morgan = require('morgan')
const app = express()
const bodyParser = require('body-parser')
app.use(morgan('dev'))
require('dotenv').config()
const { expressjwt: jwt } = require("express-jwt")
app.use(bodyParser.json())
mongoose.connect('mongodb://localhost:27017/recipe', ()=> console.log('connected to database'))
app.use('/auth', require('./routes/authRouter'))
app.use("/api", jwt( {secret: process.env.SECRET, algorithms: ['HS256']}))
app.use('/api/recipe/', require('./routes/recipeRoutes'))
app.use('/api/public/'), require('./routes/publicDelete')
app.use('/api/comments/', require('./routes/commentRouter'))
app.use('/api/ingredients/', require('./routes/ingredRouter'))
app.use((err,req,res,next)=>{
console.log(err)
if(err.name ==='UnauthorizedError'){
res.status(err.status)
}
return res.send({message:err.message})
})
app.listen(8000, ()=>{
console.log('hello ')
})
const express = require('express')
const publicDeleteRouter = express.Router()
const Recipe = require('../models/recipe')
const User = require('../models/user')
publicDeleteRouter.delete('/:recipeId', (req, res, next) =>{
Recipe.findOneAndDelete({idMeal: req.params.recipeId, user: req.auth._id}, (err, deletedRecipe) => {
if(err){
console.log(idMeal)
res.status(404)
return next(err)
}
console.log('successfully deleted: ', deletedRecipe)
return res.status(200).send(`Successfully deleted ${deletedRecipe}`)
})
})
module.exports = publicDeleteRouter
I am learning MERN development, and trying to create API for adding category by using postman. But getting below error
Cannot POST /api/category/create/62545ea650265cda5b08f10d
I am adding here code and screen shot of postman, I would appreciate for any help!
controller\category.js
const Category = require("../models/category");
//const { errorHandler } = require("../helpers/dbErrorHandler");
exports.create = (req, res) => {
const category = new Category(req.body);
category.save((err, data) => {
if (err) {
return res.status(400).json({
// error: errorHandler(err)
});
}
res.json({ data });
})
}
model\category.js
const mongoose = require('mongoose');
const categorySchema = new mongoose.Schema({
name: {
type: String,
trim: true,
required: true,
maxlength: 32
}
}, { timestamps: true }
);
module.exports = mongoose.model("Category", categorySchema);
routes/category.js
const express = require('express');
const router = express.Router();
const { create } = require('../controllers/category');
const { requireSignin, isAuth, isAdmin } = require('../controllers/auth');
const { userById } = require('../controllers/user');
router.post("/category/create:userId", requireSignin, isAuth, isAdmin, create);
router.param('userId', userById);
module.exports = router;
app.js
// const express = require('express')
// const app = express()
// require('dotenv').config()
// app.get('/',(req, res)=>{
// res.send('hello from node updated');
// })
// const port = process.env.PORT || 8000
// app.listen(port, ()=>{
// console.log(`Servver is running on port ${port}`)
// });
const express = require('express')
// import mongoose
const mongoose = require('mongoose');
const morgan = require('morgan');
const bodyParser = require('body-parser');
const cookieParser = require('cookie-parser');
const expressValidator = require('express-validator');
// load env variables
const dotenv = require('dotenv');
dotenv.config();
//import routes
const authRoutes = require('./routes/auth');
const userRoutes = require('./routes/user');
const categoryRoutes = require('./routes/category');
//app
const app = express();
//db connection
mongoose.connect(
process.env.DATABASE,
{
useNewUrlParser: true
}
)
.then(() => console.log('DB Connected'));
mongoose.connection.on('error', err => {
console.log(`DB connection error: ${err.message}`)
});
//middlewares
app.use(morgan('dev'))
app.use(bodyParser.json())
app.use(cookieParser());
app.use(expressValidator());
//routes middleware
app.use("/api", authRoutes);
app.use("/api", userRoutes);
app.use("/api", categoryRoutes);
// app.get('/',(req, res)=>{
// res.send('hello from node updated');
// })
const port = process.env.PORT || 8000
app.listen(port, () => {
console.log(`Servver is running on port ${port}`)
});
[1]: https://i.stack.imgur.com/vKqBt.png
just simply use category/create/:userId in your routes
I am trying to make a login system with authorization, unfortunately the token is not transferred.
const path = require('path');
const express = require('express');
const bodyParser = require('body-parser');
const urlencodedParser = bodyParser.urlencoded({ extended: false });
const mysql = require('mysql');
const validator = require('validator');
const jwt = require('jsonwebtoken');
require('dotenv').config().ACCESS_TOKEN;
const ACCESS_TOKEN = process.env.ACCESS_TOKEN;
const app = express();
app.use(express.json());
const publicDirectoryPath = path.join(__dirname, '../public');
console.log(publicDirectoryPath);
app.use(express.static(publicDirectoryPath));
function generateAccessToken(username) {
return jwt.sign(username, ACCESS_TOKEN, { expiresIn: '1800s' });
}
app.post('/login', urlencodedParser, (req, res) => {
res.get(req.body.username + req.body.password);
const token = generateAccessToken({ username: req.body.username });
res.json(token);
});
function authenticateToken(req, res, next) {
const authHeader = req.headers['authorization']
const token = authHeader && authHeader.split(' ')[1]
console.log(token)
if (token == null) return res.sendStatus(401)
jwt.verify(token, ACCESS_TOKEN, (err, user) => {
console.log(err)
if (err) return res.sendStatus(403)
req.user = user
next()
})
}
app.get('/admin', authenticateToken, (req, res) => {
res.send("admin panel");
})
const port = 3000;
app.listen(port, () => {
console.log(`Server run: http://localhost:${port}`);
})
wants him to be redirected to the admin panel after clicking the login button. However, I am stuck at this stage and do not know what to do next:
enter image description here
You should pass the token to the next route
const path = require('path');
const express = require('express');
const bodyParser = require('body-parser');
const urlencodedParser = bodyParser.urlencoded({ extended: false });
const mysql = require('mysql');
const validator = require('validator');
const jwt = require('jsonwebtoken');
require('dotenv').config().ACCESS_TOKEN;
const ACCESS_TOKEN = process.env.ACCESS_TOKEN;
const app = express();
app.use(express.json());
const publicDirectoryPath = path.join(__dirname, '../public');
console.log(publicDirectoryPath);
app.use(express.static(publicDirectoryPath));
function generateAccessToken(username) {
return jwt.sign(username, 'ACCESS_TOKEN', { expiresIn: '1800s' });
}
app.post('/login', urlencodedParser, (req, res) => {
res.get(req.body.username + req.body.password);
const token = generateAccessToken({ username: req.body.username });
res.redirect(`/admin?token=${token}`);
});
function authenticateToken(req, res, next) {
token = req.query.token;
if (token == null) return res.sendStatus(401);
jwt.verify(token, 'ACCESS_TOKEN', (err, user) => {
console.log(err);
if (err) return res.sendStatus(403);
req.user = user;
next();
});
}
app.get('/admin', authenticateToken, (req, res) => {
res.send('admin panel');
});
const port = 3000;
app.listen(port, () => {
console.log(`Server run: http://localhost:${port}`);
});
I have read some documentation on express routing and I am trying to render the logged in user's username or identification in the url. I need help getting the routing hit in my server.js to render the pages even before authentication. Where am I messing up?
Routing (profile.js)
const express = require("express");
var router = express.Router();
const User = require("../models/user");
const passport = require("passport");
const multer = require("multer");
// Profile Avatar
const upload = multer({ dest: "upload" });
// ACCOUNT ROUTES
router
.route("/profile/:id")
.get(function (req, res) {
if (req.isAuthenticated()) {
let dateObj = req.user.createdAt;
let createdDate = dateObj.toString().slice(4, 16);
let navbarLoggedIn = "partials/loggedIn-navbar.ejs";
let id = req.params.username;
console.log(id + "\n");
res.render(
"profile",
{ id: req.params.id },
{
currentUser: req.user.username,
currentCompany: req.user.company,
currentLocation: req.user.location,
currentPosition: req.user.position,
memberStatus: createdDate,
navbar: navbarLoggedIn,
}
);
} else {
res.redirect("login");
}
})
.post(function (req, res) {});
module.exports = router;
server.js
require("dotenv").config();
const express = require("express");
const session = require("express-session");
const passport = require("passport");
const path = require("path");
const ejs = require("ejs");
const logger = require("morgan");
const main = require("./routes/main");
const about = require("./routes/about");
const contact = require("./routes/contact");
const profile = require("./routes/profile");
const pricing = require("./routes/pricing");
const help = require("./routes/help");
const login = require("./routes/login");
const signup = require("./routes/signup");
const forgot_password = require("./routes/forgot-password");
const User = require("./models/user");
const multer = require("multer");
// PORT
const port = 8080;
const app = express();
// COOKIES AND SESSION
app.use(
session({
secret: process.env.SECRET,
resave: false,
saveUninitialized: true,
})
);
app.use(passport.initialize());
app.use(passport.session());
// DATABASE
require("./config/database.js");
// PASSPORT AUTHENTICATION
require("./config/passport.js");
// MIDDLEWARE
app.use(logger("dev"));
app.use(express.urlencoded({ extended: true }));
app.use(express.json());
app.use("/public", express.static(path.join(__dirname + "/public")));
app.set("view engine", "ejs");
app.set("view cache", false);
// ROUTES
app.use("/", main);
app.use("/about", about);
app.use("/contact", contact);
app.use("/pricing", pricing);
app.use("/profile/:id", profile, (req, res, next) => {
next();
});
app.use("/help", help);
app.use("/login", login);
app.use("/signup", signup);
app.use("/forgot-password", forgot_password);
// Logout
app.get("/logout", function (req, res) {
res.clearCookie("connect.sid");
res.redirect("/");
});
app.listen(port, (err, done) => {
if (!err) {
console.log({ message: "success!" });
} else {
return err;
}
});
And here is my file structure.file structure.
views strucutre
When you define the profile router in your main server file, instead of defining one specific route, define a short prefix. In your case you'll use /profile. Then in your router simply define the rest of the route (/:id).
Example:
Server:
app.use("/profile", profile, (req, res, next) => {
next();
});
Router:
router
.route("/:id")
.get(function (req, res) {
if (req.isAuthenticated()) {
let dateObj = req.user.createdAt;
let createdDate = dateObj.toString().slice(4, 16);
let navbarLoggedIn = "partials/loggedIn-navbar.ejs";
let id = req.params.username;
console.log(id + "\n");
res.render(
"profile",
{
id: req.params.id
},
{
currentUser: req.user.username,
currentCompany: req.user.company,
currentLocation: req.user.location,
currentPosition: req.user.position,
memberStatus: createdDate,
navbar: navbarLoggedIn,
}
);
} else {
res.redirect("login");
}
});
I am trying to build a webchat app using node.js and express. I have a router file and a server file, together with some client files. I would like to emit a join event from the router and processing it on the server so the user can join the room. I did i like this
Server.js
const express = require('express');
const layout = require('express-layout');
const app = express();
var server = require('http').createServer(app);
var io=require('socket.io')(server);
const routes = require('./router')(io);
const bodyParser = require('body-parser');
var fs = require("fs");
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
const middleware = [
layout(),
express.static(path.join(__dirname, 'public')),
bodyParser.urlencoded(),
];
app.use(middleware);
app.use('/', routes);
app.use((req, res, next) => {
res.status(404).send("Sorry can't find that!");
});
app.use((err, req, res, next) => {
console.error(err.stack);
res.status(500).send('Something broke!');
});
io.on('connect', onConnect);
function onConnect(socket) {
var contents = fs.readFileSync("./public/rooms.json");
let rooms = JSON.parse(contents);
socket.emit('parse',rooms);
socket.on('join',function (name, room) {
console.log(name+" "+ room);
socket.join(room);
socket.user=name;
socket.room=room;
})
}
Here I just initialize the io connection together with all the dependencies I use. I use const routes = require('./router')(io); to pass the io variable
router.js
const express = require('express');
const User= require("./public/classes/User");
const router = express.Router();
const {check, validationResult} = require('express-validator');
const {matchedData} = require('express-validator/filter');
var userlist=new Array();
router.get('/', (req, res) => {
res.render('index', {
data: {},
errors: {}
})
});
router.post('/enter', [
check('username')
.isLength({min: 1})
.withMessage('Username is required').trim() //implement personalized check
], (req, res) => {
const errors = validationResult(req);
if (!errors.isEmpty()) {
return res.render('index', {
data: req.body,
errors: errors.mapped()
})
}
const data = matchedData(req)
handleJoin(data);
});
return router;
//MOVE TO SUPPORT
function find(name) {
return 1;
}
function handleJoin (data){
if(find(data.username)){
const newUser= new User (data.username, data.room,"");
userlist.push(newUser);
io.emit('join',newUser.name,newUser.room);
}
};
};
The console should log the name and the choosen room but it doesn't. How do I process this?