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index.js
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index.js
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const serverless = require("serverless-http");
const express = require('express'),
app = express(),
morgan = require('morgan'),
fs = require('fs'),
uuid = require('uuid'),
bodyParser = require('body-parser'),
path = require('path'),
mongoose = require('mongoose'),
Models = require('./models.js'),
bcrypt = require('bcrypt'),
{ check, validationResult } = require('express-validator');
// Assigning models for Movie and User
const Movies = Models.Movie;
const Users = Models.User;
// Set the listening port
const port = process.env.PORT || 8080;
// Middleware for handling JSON requests
app.use(bodyParser.json());
// Middleware for handling URL encoded requests
app.use(bodyParser.urlencoded({ extended: true }));
// Use Cross-Origin Resource Sharing on specific domains
const cors = require('cors');
//app.use(cors());
let allowedOrigins = [
'http://localhost:8080',
'http://localhost:4200',
'https://ecspecial-myflixapp.netlify.app',
'https://ecspecial.github.io',
];
app.use(
cors({
origin: (origin, callback) => {
if (!origin) {
return callback(null, true);
}
if (allowedOrigins.indexOf(origin) === -1) {
let message = `The CORS policy for this application doesn't allow access from origin ${origin}`;
return callback(new Error(message), false);
}
return callback(null, true);
},
})
);
let auth = require('./auth.js')(app);
const passport = require('passport');
require('./passport.js');
// Connect to MongoDB database
//mongoose.connect('', { useNewUrlParser: true, useUnifiedTopology: true });
mongoose.connect( process.env.CONNECTION_URI, { useNewUrlParser: true, useUnifiedTopology: true });
// Route all requests for static data in public folder
//app.use(express.static('public'));
/**
* Defaukt '/' endpoint, returns welcome message
* @method GET
* @name welcomeMessage
* @kind function
* @returns Welcome message
*/
app.get('/', (req, res) => {
res.send('Welcome to my movie_api App!');
});
/**
* Function to request full list of users
* @method GET to endpoint '/users'
* @name getUsers
* @kind function
* @requires passport module for authentication
* @requires Users mongoose.Model
* @returns a JSON object holding USERS list
*/
app.get('/users', passport.authenticate('jwt', { session: false }), (req, res) => {
Users.find()
.then((users) => {
res.status(201).json(users);
})
.catch((err) => {
console.log(err);
res.status(500).send('Error: ' + err);
});
});
/**
* Function to request user data
* @method GET to endpoint '/users/:username'
* @name getUser
* @kind function
* @requires passport module for authentication
* @requires Users mongoose.Model
* @returns a JSON object holding USER data
*/
app.get('/users/:username', passport.authenticate('jwt', { session: false }), (req, res) => {
Users.findOne({ Username: req.params.username })
.then((user) => {
if (user) {
res.status(201).json(user);
} else {
res.status(400).send('User not found.');
}
})
.catch((error) => {
console.log(error);
res.status(500).send('Error: ' + error);
});
});
/**
* Function to Register new user:
* validates request JSON object (includes all required fields)
* checks DB, if the user that is going to be created already exists
* if no errors appeared, creates new user object in DB
* @method POST to endpoint '/users'
* @name addUser
* @kind function
* @requires passport module for authentication
* @requires Users mongoose.Model
* @returns a JSON object holding data of newly created user
*/
app.post('/users', [
check('Username', 'Username is required (minimum 5 characters).').isLength({min: 5}),
check('Username', 'Username contains non alphanumeric characters - not allowed.').isAlphanumeric(),
check('Password', 'Password is required').not().isEmpty(),
check('Email', 'Email does not appear to be valid').isEmail()
], (req, res) => {
// Check for validation errors
let errors = validationResult(req);
if (!errors.isEmpty()) {
return res.status(422).json({ errors: errors.array() });
}
let hashedPassword = Users.hashPassword(req.body.Password);
Users.findOne({ Username: req.body.Username })
.then((user) => {
if (user) {
res.status(400).send(req.body.Username + ' already exists.');
} else {
Users.create({
Username: req.body.Username,
Password: hashedPassword,
Email: req.body.Email,
Birthday: req.body.Birthday,
FavoriteMovies: req.body.FavoriteMovies
})
.then((user) => {res.status(201).json(user) })
.catch((error) => {
console.log(error);
res.status(500).send('Error: ' + error);
})
}
})
.catch((error) => {
console.log(error);
res.status(500).send('Error: ' + error);
});
});
/**
* Function to update user information
* validates request JSON object (includes all required fields)
* checks DB, if the user that is going to be updated exists
* if no errors appeared, updates user object in DB
* @method PUT to endpoint '/users/:Username''
* @name updateUser
* @kind function
* @requires passport module for authentication
* @requires Users mongoose.Model
* @returns a JSON object with updated information
*/
app.put('/users/:Username', [
check('Username', 'Username is required.').not().isEmpty(),
check('Username', 'Username can only contain numbers or letters.').isAlphanumeric(),
check('Password', 'Password must be at least 8 characters long.').optional().isLength({min:8}),
check('Email', 'Email doesn\'t appear to be valid.').isEmail()
], passport.authenticate('jwt', { session: false }), (req, res) => {
// Check for validation errors
let errors = validationResult(req);
if (!errors.isEmpty()) {
return res.status(422).json({ errors: errors.array() });
}
let hashedPassword = req.body.Password ? Users.hashPassword(req.body.Password) : Users.findOne({ Username: req.params.Username }).Password;
if (req.body.Username === req.params.Username) {
Users.findOne({ Username: req.params.Username })
.then((user) => {
if(!user) {
res.status(400).send('User not found.')
} else {
Users.findOneAndUpdate({ Username: req.params.Username }, {$set: {
Username: req.params.Username,
Password: hashedPassword,
Email: req.body.Email,
Birthday: req.body.Birthday,
FavoriteMovies: req.body.FavoriteMovies
}
},
{ new: true },
(error, updatedUser) => {
if (error) {
console.log(error);
res.status(500).send('Error: ' + error);
} else {
res.status(201).json(updatedUser);
}
});
}
}).catch((error) => {
console.log(error);
res.status(500).send('Error: ' + error);
})
} else {
Users.findOne({ Username: req.params.Username })
.then((user) => {
if (user) {
Users.findOne({ Username: req.body.Username })
.then((updateUser) => {
if(updateUser && updateUser._id !== user._id) {
res.status(400).send('User already exists.')
} else {
Users.findOneAndUpdate({ Username: req.params.Username }, {$set: {
Username: req.body.Username,
Password: hashedPassword,
Email: req.body.Email,
Birthday: req.body.Birthday,
FavoriteMovies: req.body.FavoriteMovies
}
},
{ new: true },
(error, updatedUser) => {
if (error) {
console.log(error);
res.status(500).send('Error: ' + error);
} else {
res.status(201).json(updatedUser);
}
});
}
}).catch((error) => {
console.log(error);
res.status(500).send('Error: ' + error);
})
} else {
res.status(400).send('User not found.')
}
})
.catch((error) => {
console.log(error);
res.status(500).send('Error: ' + error);
})
}
});
/**
* Function to delete user profile
* @method DELETE to endpoint '/users/:Username'
* @name deleteUser
* @kind function
* @requires passport module for authentication
* @requires Users mongoose.Model
* @returns message that :Username was deleted
*/
app.delete('/users/:username', passport.authenticate('jwt', { session: false }), (req, res) => {
Users.findOneAndDelete({ Username: req.params.username })
.then((user) => {
if (!user) {
res.status(400).send('User not found.');
} else {
res.status(200).send(req.params.username + ' was deleted.');
}
}).catch((error) => {
console.log(error);
res.status(500).send('Error: ' + error);
});
});
/**
* @method GET to endpoint '/movies'
* @name getMovies
* @kind function
* @requires passport module for authentication
* @requires movies mongoose.Model
* @returns a JSON object holding data about all the movies
*/
app.get('/movies', passport.authenticate('jwt', { session: false }), (req, res) => {
Movies.find()
.then((movies) => {
res.status(201).json(movies);
})
.catch((error) => {
res.status(500).send('Error ' + error);
})
});
/**
* Function to add user favorite movie
* @method POST to endpoint '/users/:Username/movies/:MovieID'
* @name addFavorite
* @kind function
* @requires passport module for authentication
* @requires Users mongoose.Model
* @returns a JSON object with updated user information
*/
app.post('/users/:username/movies/:movieID', passport.authenticate('jwt', { session: false }), (req, res) => {
Users.findOneAndUpdate({ Username: req.params.username }, {
$addToSet: { FavoriteMovies: req.params.movieID },
},
{ new: true },
(error, updatedUser) => {
if (error) {
console.log(error);
res.status(500).send('Error ' + error);
} else {
res.json(updatedUser);
}
});
});
/**
* Function to delete user favorite movie
* @method DELETE to endpoint '/users/:Username/movies/:MovieID'
* @name deleteFavorite
* @kind function
* @requires passport module for authentication
* @requires Users mongoose.Model
* @returns a JSON object with updated user information
*/
app.delete('/users/:username/movies/:movieID', passport.authenticate('jwt', { session: false }), (req, res) => {
Users.findOneAndUpdate({ Username: req.params.username }, {
$pull: { FavoriteMovies: req.params.movieID },
},
{ new: true },
(error, updatedUser) => {
if (error) {
console.log(error);
res.status(500).send('Error ' + error);
} else {
res.json(updatedUser);
}
});
});
/**
* @method GET to endpoint '/movies/:title'
* @name getMovie
* @kind function
* @requires passport module for authentication
* @requires movies mongoose.Model
* @returns Returns a JSON object holding data about a single movie by title
*/
app.get('/movies/:title', passport.authenticate('jwt', { session: false }), (req, res) => {
Movies.findOne({ Title: req.params.title })
.then((movie) => {
if (movie) {
res.status(201).json(movie);
} else {
res.status(400).send('Movie not found.');
}
})
.catch((error) => {
console.log(error);
res.status(500).send('Error: ' + error);
});
});
/**
* @method GET to endpoint '/movies/genre/:ganreName'
* @name getGenre
* @kind function
* @requires passport module for authentication
* @requires movies mongoose.Model
* @returns a JSON object holding data about ganre by name
*/
app.get('/movies/genre/:genreName', passport.authenticate('jwt', { session: false }), (req, res) => {
Movies.findOne({ "Genre.Name": req.params.genreName })
.then((movie) => {
if (movie) {
res.status(201).json(movie.Genre.Description);
} else {
res.status(400).send('Genre not found.');
}
})
.catch((error) => {
console.log(error);
res.status(500).send('Error: ' + error);
});
});
/**
* @method GET to endpoint '/movies/directors/:direcrorName'
* @name getDirector
* @kind function
* @requires passport module for authentication
* @requires movies mongoose.Model
* @returns a JSON object holding data about director by name
*/
app.get('/movies/directors/:directorName', passport.authenticate('jwt', { session: false }), (req, res) => {
Movies.findOne({ "Director.Name": req.params.directorName })
.then((movie) => {
if (movie) {
res.status(201).json(movie.Director);
} else {
res.status(400).send('Director not found.');
}
})
.catch((error) => {
console.log(error);
res.status(500).send('Error: ' + error);
});
});
/**
* Middleware for handling errors.
*/
app.use((err, req, res, next) => {
console.log(err.stack);
res.status(500).send('Something broke!');
});
/**
* Start the server and listen on provided port.
*/
app.listen(port, '0.0.0.0',() => {
console.log('Listening on Port ' + port);
});
module.exports.handler = serverless(app);