index2.js

const express = require("express");
const { TodoModel, UserModel } = require("./db2");
const mongoose = require("mongoose");
const { auth, JWT_SECRET } = require("./auth2");
const jwt = require("jsonwebtoken");
const bcrypt = require("bcrypt");

mongoose.connect("");

const app = express();
app.use(express.json());

const PORT = 3000;

app.post("/signup", async (req, res) => {
  const email = req.body.email;
  const password = req.body.password;
  const name = req.body.name;
  const age = req.body.age;

  let errorThrown = false;
  try {
    const hashedPass = await bcrypt.hash(password, 5);

    await UserModel.create({
      name: name,
      age: age,
      email: email,
      password: hashedPass,
    });
  } catch (e) {
    console.log("Error while entering in the DB");
    res.json({
      message: "User already exists",
    });
    errorThrown = true;
  }

  if (!errorThrown) {
    res.json({
      message: "You're Signed Up",
    });
  }
});

app.post("/login", async (req, res) => {
  const email = req.body.email;
  const password = req.body.password;

  const response = await UserModel.findOne({
    email: email,
  });
  if (!response) {
    res.status(403).json({
      message: "User does not exist in our DB",
    });
    return;
  }
  const passwordMatch = await bcrypt.compare(password, response.password);
  if (passwordMatch) {
    const token = jwt.sign(
      {
        id: response._id.toString(),
      },
      JWT_SECRET
    );

    res.json({
      token,
    });
  } else {
    res.status(403).json({
      message: "Incorrect creds",
    });
  }
});

app.post("/todos", auth, async (req, res) => {
  const userId = req.userId;
  const description = req.body.description;
  const done = req.body.done;
  await TodoModel.create({
    userId,
    description,
    done,
  });

  res.json({
    message: "Todo created",
  });
});

app.get("/todos", auth, async (req, res) => {
  const userId = req.userId;

  const todos = await TodoModel.find({
    userId,
  });

  res.json({ todos });
});

app.listen(PORT, (req, res) => {
  console.log(`The app is running on port: ${PORT}`);
});