followed along until exercise 3.1

parts/3/followAlong/index.js

@@ -1,6 +1,8 @@
 const express = require("express");
 const app = express();
 
+app.use(express.json());
+
 let notes = [
   { id: "1", content: "HTML is easy", important: true },
   { id: "2", content: "Browser can execute only JavaScript", important: false },
@@ -11,6 +13,12 @@ let notes = [
   },
 ];
 
+const generateId = () => {
+  const maxId =
+    notes.length > 0 ? Math.max(...notes.map((n) => Number(n.id))) : 0;
+  return String(maxId + 1);
+};
+
 app.get("/", (request, response) => {
   response.send("<h1>Hello World!</h1>");
 });
@@ -19,6 +27,26 @@ app.get("/api/notes", (request, response) => {
   response.json(notes);
 });
 
+app.post("/api/notes", (request, response) => {
+  const body = request.body;
+
+  if (!body.content) {
+    return response.status(400).json({
+      error: "content missing",
+    });
+  }
+
+  const note = {
+    content: body.content,
+    important: body.important || false,
+    id: generateId(),
+  };
+
+  notes = notes.concat(note);
+
+  response.json(note);
+});
+
 app.get("/api/notes/:id", (request, response) => {
   const id = request.params.id;
   const note = notes.find((note) => note.id === id);

parts/3/followAlong/requests/create_note.rest

@@ -0,0 +1,7 @@
+POST http://localhost:3001/api/notes
+Content-Type: application/json
+
+{
+    "content": "i'm a tttttnoty note",
+    "important": false
+}

parts/3/followAlong/requests/get_all_notes.rest

@@ -0,0 +1 @@
+GET http://localhost:3001/api/notes