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server.js
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server.js
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// how does require work?
// https://javascript.plainenglish.io/how-do-nodejs-require-and-module-work-545ab4fe5423
const express = require("express");
// https://expressjs.com/en/resources/middleware/cors.html
const cors = require("cors");
const multer = require("multer");
var ObjectId = require("mongodb").ObjectId;
const { MongoClient } = require("mongodb");
require("dotenv").config();
// Settings and middleware (Middleware are software and cloud services)
const upload = multer();
const app = express();
// Fix to stop nodemon form crashing
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
app.use(cors());
app.use(express.static("static"));
app.set("view engine", "ejs");
const port = 8080;
const uri = process.env.MONGO_URI;
const client = new MongoClient(uri);
// Array of games (collection of games)
let username, games;
games = [
{
id: 1,
},
{
id: 2,
},
{
id: 3,
},
{
id: 4,
},
{
id: 5,
},
{
id: 6,
},
{
id: 7,
},
{
id: 8,
},
{
id: 9,
},
];
// Endpoint to remove likes (this is to unlike)
// Route parameter: :likeId, :userId
app.post("/unlike", async (req, res) => {
const likeId = req.body.likeId;
const userId = req.body.userId;
// oude code
// app.get('/unlike/:likeId/:userId', async (req, res) => {
// const likeId = req.params.likeId;
// const userId = req.params.userId;
try {
await client.connect();
const db = client.db("gameTogether-db");
const result = await db
.collection("likes")
.deleteOne({ _id: new ObjectId(likeId) });
if (result.deletedCount === 1) {
res.status(200).send("Success");
} else {
res.status(404).send("Like not found");
}
} catch (err) {
console.error(err);
res.status(500).send("Server Error");
} finally {
await client.close();
}
});
// oude code
// // Endpoint to get all the likes
// app.get('/likes', async (req, res) => {
// try {
// await client.connect();
// // database and collection code goes here
// const db = client.db("gameTogether-db");
// db.collection("likes").find().toArray((err, likes) => {
// if (err) throw err;
// res.json(likes);
// client.close();
// });
// const likesCollection = db.collection("likes");
// // find code goes here
// const allLikes = likesCollection.find().toArray();
// res.json(await allLikes);
// } catch (err) {
// console.error(err);
// res.status(500).send('Server Error');
// }
// });
// // Endpoint to get all the likes
// app.get('/unlike/:likeId/:userId', async (req, res) => {
// const likeId = req.params.likeId;
// const userId = req.params.userId;
// try {
// await client.connect();
// // database and collection code goes here
// const db = client.db("gameTogether-db");
// db.collection("likes").deleteOne( { "_id" : new ObjectId(likeId) } );
// res.status(200).send('Succes');
// } catch (err) {
// console.error(err);
// res.status(500).send('Server Error');
// }
// });
// Endpoint to add like (this is to like)
// Route parameter: :gameId, :userId
app.post("/like", async (req, res) => {
const gameId = req.body.gameId;
const userId = req.body.userId;
// oude code
// app.get('/like/:gameId/:userId', async (req, res) => {
// const gameId = req.params.gameId;
// const userId = req.params.userId;
try {
await client.connect();
// database and collection code goes here
const db = client.db("gameTogether-db");
const allLikes = db
.collection("likes")
.find({ userId: Number(userId) })
.toArray();
// checks if the game is already liked
if ((await allLikes).some((like) => like.gameId === Number(gameId))) {
throw "already liked";
}
// add like to database
db.collection("likes").insertOne(
{ gameId: Number(gameId), userId: Number(userId) },
// if error happens
function (err, res) {
if (err) throw err;
db.close();
}
);
res.status(201).send("succes");
} catch (err) {
console.error(err);
res.status(500).send("Server Error");
}
});
// Feature to retrieve likes from a user based on their Id
async function getUserLikesById(id) {
try {
await client.connect();
// database and collection code goes here
const db = client.db("gameTogether-db");
const likesCollection = db.collection("likes");
// makes user array into number
const allLikes = likesCollection.find({ userId: Number(id) }).toArray();
console.log(await allLikes);
// sends funtion back
return await allLikes;
} finally {
// Ensures that the client will close when you finish/error
await client.close();
}
}
// Profile route with user ID as parameter
app.get("/profile/:userId", async (req, res) => {
res.render("profile", {
likes: await getUserLikesById(req.params.userId),
userId: req.params.userId,
});
});
// Home route for multible users
// render page for each user without login
app.get("/home", async (req, res) => {
res.render("index", { userId: 2, games: games });
});
// routes not used in project
// Route to update the username
// app.post("/update-username", upload.none(), function (req, res, next) {
// username = req.body.name;
// res.redirect("/");
// });
// Route to remove the username
// we use get here because HTML5 does not allow delete methodes to be used in a form.
// app.get("/delete-username", upload.none(), function (req, res, next) {
// username = null;
// res.redirect("/");
// });
// Route to retrieve the current username
// app.get("/username", (req, res) => res.json({ name: username }));
// Route for handling invalid routes.
app.all("*", (req, res) => {
res.render("error");
});
// Start the server on the specified port
app.listen(port, () => console.log(`Example app listening on port ${port}!`));