index.js

const express = require("express");
const jwt = require("jsonwebtoken");
const cors = require("cors");
const res = require("express/lib/response");
const { MongoClient, ServerApiVersion, ObjectId } = require("mongodb");
const { use } = require("express/lib/application");
require("dotenv").config();

const app = express();
const port = process.env.PORT || 5000;

//middleware
app.use(cors());
app.use(express.json());

/* const verifyToken = (req, res, next) => {
  const header = req.headers.authorization;
  if (!header) {
    return res.status(401).send({ message: "Unauthorized access" });
  }
  const token = header.split(" ")[1];
  jwt.verify(token, process.env.ACCESS_TOKEN_SECRET, (err, decoded) => {
    if (err) {
      return res.status(403).send({ message: "Access denied" });
    }
    req.decoded = decoded;
    next();
  });
}; */

const uri = `mongodb+srv://${process.env.DB_USER}:${process.env.DB_PASS}@cluster0.yfl4a.mongodb.net/myFirstDatabase?retryWrites=true&w=majority`;
const client = new MongoClient(uri, {
  useNewUrlParser: true,
  useUnifiedTopology: true,
  serverApi: ServerApiVersion.v1,
});

const run = async () => {
  try {
    await client.connect(err => {
      if (err) {
        console.error(err);
        return false;
      }
      // connection to mongo is successful, listen for requests
      app.listen(port, () => {
        console.log("listening for requests");
      });
    });

    const fruitsCollection = client
      .db("fruitsInventory")
      .collection("fruitsCollection");

    //jwt
    /*   app.post("/login", async (req, res) => {
      const user = req.body;
      const token = jwt.sign(user, process.env.ACCESS_TOKEN_SECRET);
      res.send({ token });
    }); */

    app.get("/fruits", async (req, res) => {
      const cursor = fruitsCollection.find();
      const fruits = await cursor.toArray();
      res.send(fruits);
    });

    app.post("/inventory", async (req, res) => {
      const newItem = req.body;
      const result = await fruitsCollection.insertOne(newItem);
      res.send(result);
    });

    app.get("/inventory/:id", async (req, res) => {
      const id = req.params.id;
      const query = { _id: ObjectId(id) };
      const result = await fruitsCollection.findOne(query);
      res.send(result);
    });

    app.put("/inventory/:id", async (req, res) => {
      const id = req.params.id;
      const update = req.body;
      const filter = { _id: ObjectId(id) };
      const options = { upsert: true };
      const updateDB = {
        $set: update,
      };
      const result = await fruitsCollection.updateOne(
        filter,
        updateDB,
        options
      );
      res.send(result);
      /* const token = jwt.sign({ email: email }, process.env.ACCESS_TOKEN_SECRET);
      res.send(result, token); */
    });

    app.delete("/inventory/:id", async (req, res) => {
      const id = req.params.id;
      const query = { _id: ObjectId(id) };
      const result = await fruitsCollection.deleteOne(query);
      res.send(result);
    });

    app.get("/myitems/:email", async (req, res) => {
      const email = req.params.email;
      const query = { email: email };
      const cursor = fruitsCollection.find(query);
      const myItems = await cursor.toArray();
      res.send(myItems);
    });
  } finally {
  }
};

run().catch(console.dir);

app.get("/", (req, res) => {
  res.send("Server is running.");
});