server.js

const express = require("express");
const fs = require("fs");

const app = express();
const PORT = process.env.PORT || 8080;

// look in 'html' FIRST and serve any static file
app.use(express.static("public"));
app.use(express.static("db"));

app.use(express.json()); // for parsing application/json
app.use(express.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded

//initialize note list and note ID
let notes = JSON.parse(fs.readFileSync("./db/db.json", "utf8"))
  ? JSON.parse(fs.readFileSync("./db/db.json", "utf8"))
  : [];
console.log(notes);

//GET endpoint
app.get("/api/notes", function (req, res) {
  res.send(notes);
});

//POST endpoint
app.post("/api/notes/", function (req, res) {
  const newNote = req.body;
  newNote.id = Date.now();
  notes.push(newNote);
  fs.writeFileSync("./db/db.json", JSON.stringify(notes));
  res.send(notes);
});

//DELETE endpoint
app.delete("/api/notes/:id", function (req, res) {
  const noteID = req.params.id;
  notes = notes.filter((note) => note.id != noteID);
  // console.log( notes )
  fs.writeFileSync("./db/db.json", JSON.stringify(notes));
  res.send(notes);
});

app.put("/api/notes", function (req, res) {
  const revidesNote = req.body;
  if (!revidesNote.id) {
    res.send({ stauts: false, message: `Id not found` });
  }
  const noteIdx = notes.findIndex(revidesNote);

  notes[noteIdx] = revidesNote;
  fs.writeFileSync("./db/db.json", JSON.stringify(notes));
  res.send({ status: true, message: `Note revised` });
});

//PORT Listener
app.listen(PORT, function () {
  console.log(`APP listening on port:`, PORT);
});