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index.js
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index.js
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const express = require("express");
const app = express();
const cors = require("cors");
const jwt = require("jsonwebtoken");
require("dotenv").config();
const stripe = require("stripe")(process.env.PAYMENT_SECRET_SK);
const { MongoClient, ServerApiVersion, ObjectId } = require("mongodb");
const port = process.env.PORT || 4000;
// middleware
app.use(cors());
app.use(express.json());
//verify jwt
const verifyJwt = (req, res, next) => {
const authorization = req.headers.authorization;
// console.log(authorization);
if (!authorization) {
return res.status(401).send({ error: true, message: "unauthorize token" });
}
// token verify
const token = authorization.split(" ")[1];
jwt.verify(token, process.env.JWT_SECRET, (err, decoded) => {
if (err) {
return res.status(403).send({ error: true, message: "Forbidden Access" });
}
// console.log(decoded);
req.decoded = decoded;
next();
});
};
// mongodb connection
const uri = process.env.MONGODB_URI;
// Create a MongoClient with a MongoClientOptions object to set the Stable API version
const client = new MongoClient(uri, {
serverApi: {
version: ServerApiVersion.v1,
strict: true,
deprecationErrors: true,
},
});
async function run() {
try {
// Connect the client to the server (optional starting in v4.7)
// await client.connect();
const classes = client.db("spc").collection("classes");
const users = client.db("spc").collection("users");
const selectedClasses = client.db("spc").collection("selectedClasses");
const enrolledClass = client.db("spc").collection("enrolledClass");
// generate json web token
app.post("/jwt", (req, res) => {
const email = req.body;
const token = jwt.sign(email, process.env.JWT_SECRET, {
expiresIn: "1h",
});
// console.log(token);
res.send({ token });
});
// classes related apis
app.get("/classes", async (req, res) => {
const result = await classes.find().toArray();
const email = req.query.email;
if (email) {
const emailFilter = await classes
.find({ instructorEmail: email })
.toArray();
if (emailFilter.length == 0) {
return res.send({ message: "invalid email address" });
}
return res.send(emailFilter);
}
res.send(result);
});
app.put("/classes/:id", async (req, res) => {
const id = req.params.id;
const data = req.body;
const result = await classes.updateOne(
{ _id: new ObjectId(id) },
{ $set: data },
{ upsert: true }
);
res.send(result);
});
app.post("/classes", async (req, res) => {
const classData = req.body;
const result = await classes.insertOne(classData);
res.send(result);
});
app.patch("/classes/:id", async (req, res) => {
const id = req.params.id;
const query = { _id: new ObjectId(id) };
const updateDoc = { $inc: { availableSeats: -1, enrolledStudents: 1 } };
const result = await classes.updateOne(query, updateDoc);
res.send(result);
});
// selected class related apis
app.post("/selected-classes",verifyJwt, async (req, res) => {
const classes = req.body;
const result = await selectedClasses.insertOne(classes);
res.send(result);
});
app.get("/selected-classes", verifyJwt, async (req, res) => {
const email = req.query.email;
const result = await selectedClasses.find({ email }).toArray();
res.send(result);
});
app.delete("/selected-classes", verifyJwt, async (req, res) => {
const id = req.query.id;
const result = await selectedClasses.deleteOne({
_id: new ObjectId(id),
});
return res.send(result);
});
//enrolled class
app.post("/enrolled-class", verifyJwt, async (req, res) => {
const enrollClass = req.body;
enrollClass.enrolledAt = new Date();
const result = await enrolledClass.insertOne(enrollClass);
res.send(result);
});
app.get("/enrolled-classes",verifyJwt, async (req, res) => {
const email = req.query.email;
const result = await enrolledClass
.find({ email })
.sort({ enrolledAt: -1 })
.toArray();
res.send(result);
});
//user related apis
app.post("/user",verifyJwt, async (req, res) => {
const user = req.body;
const existingUser = await users.findOne({ email: user?.email });
if (existingUser) {
return res.send({ message: "user already exist!" });
}
const result = await users.insertOne(user);
res.send(result);
});
app.get("/user", verifyJwt, async (req, res) => {
const userEmail = req.query.email;
if (!userEmail) {
const result = await users.find().toArray();
return res.send(result);
}
const result = await users.findOne({ email: userEmail });
if (result == null) {
return res.send({ message: "user not found!" });
}
res.send(result);
});
app.put("/user",verifyJwt, async (req, res) => {
const id = req.query.id;
const user = req.body;
const result = await users.updateOne(
{ _id: new ObjectId(id) },
{ $set: user },
{ upsert: true }
);
res.send(result);
});
// create payment intent
app.post("/create-payment-intent", verifyJwt, async (req, res) => {
const { price } = req.body;
const amount = parseFloat(price) * 100;
// Create a PaymentIntent with the order amount and currency
const paymentIntent = await stripe.paymentIntents.create({
amount: amount,
currency: "usd",
automatic_payment_methods: {
enabled: true,
},
});
res.send({
clientSecret: paymentIntent.client_secret,
});
});
await client.db("admin").command({ ping: 1 });
console.log(
"Pinged your deployment. You successfully connected to MongoDB!"
);
} finally {
// Ensures that the client will close when you finish/error
// await client.close();
}
}
run().catch(console.dir);
app.get("/", async (req, res) => {
res.send("server is live");
});
app.listen(port, () => {
console.log(`Server is running on port: ${port}`);
});