70 lines
1.5 KiB
JavaScript
70 lines
1.5 KiB
JavaScript
const express = require("express");
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const app = express();
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app.use(express.json());
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let notes = [
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{ id: "1", content: "HTML is easy", important: true },
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{ id: "2", content: "Browser can execute only JavaScript", important: false },
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{
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id: "3",
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content: "GET and POST are the most important methods of HTTP protocol",
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important: true,
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},
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];
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const generateId = () => {
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const maxId =
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notes.length > 0 ? Math.max(...notes.map((n) => Number(n.id))) : 0;
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return String(maxId + 1);
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};
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app.get("/", (request, response) => {
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response.send("<h1>Hello World!</h1>");
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});
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app.get("/api/notes", (request, response) => {
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response.json(notes);
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});
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app.post("/api/notes", (request, response) => {
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const body = request.body;
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if (!body.content) {
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return response.status(400).json({
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error: "content missing",
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});
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}
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const note = {
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content: body.content,
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important: body.important || false,
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id: generateId(),
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};
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notes = notes.concat(note);
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response.json(note);
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});
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app.get("/api/notes/:id", (request, response) => {
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const id = request.params.id;
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const note = notes.find((note) => note.id === id);
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if (note) {
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response.json(note);
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} else {
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response.status(404).end();
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}
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});
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app.delete("/api/notes/:id", (request, response) => {
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const id = request.params.id;
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notes = notes.filter((note) => note.id !== id);
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response.status(204).end();
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});
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const PORT = 3001;
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app.listen(PORT, () => {
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console.log(`Server running on port ${PORT}`);
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});
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