index.js

const express = require("express");
const { MongoClient } = require("mongodb");

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

const port = 3000;
let db;

const startServer = async () => {
  const client = await MongoClient.connect("mongodb://localhost:27017/");
  db = client.db("todo");

  await db.collection("todos").insertMany([
    {
      id: "1",
      title: "Buy groceries",
    },
    {
      id: "2",
      title: "Install Aspecto",
    },
    {
      id: "3",
      title: "buy my own name domain",
    },
  ]);

  app.listen(port, () => {
    console.log(`Example app listening on port ${port}`);
  });
};

startServer();

app.get("/todo", async (req, res) => {
  const todos = await db.collection("todos").find({}).toArray();
  res.send(todos);
});

app.get("/todo/:id", async (req, res) => {
  const todo = await db.collection("todos").findOne({ id: req.params.id });
  res.send(todo);
});