Initial Commit

Author: zntb

.gitignore

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+node_modules

README.md

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+Adding Authentication to React Apps

backend/app.js

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+const bodyParser = require('body-parser');
+const express = require('express');
+
+const eventRoutes = require('./routes/events');
+const authRoutes = require('./routes/auth');
+
+const app = express();
+
+app.use(bodyParser.json());
+app.use((req, res, next) => {
+  res.setHeader('Access-Control-Allow-Origin', '*');
+  res.setHeader('Access-Control-Allow-Methods', 'GET,POST,PATCH,DELETE');
+  res.setHeader('Access-Control-Allow-Headers', 'Content-Type,Authorization');
+  next();
+});
+
+app.use(authRoutes);
+
+app.use('/events', eventRoutes);
+
+app.use((error, req, res, next) => {
+  const status = error.status || 500;
+  const message = error.message || 'Something went wrong.';
+  res.status(status).json({ message: message });
+});
+
+app.listen(8080);

backend/data/event.js

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+const { v4: generateId } = require('uuid');
+
+const { NotFoundError } = require('../util/errors');
+const { readData, writeData } = require('./util');
+
+async function getAll() {
+  const storedData = await readData();
+  if (!storedData.events) {
+    throw new NotFoundError('Could not find any events.');
+  }
+  return storedData.events;
+}
+
+async function get(id) {
+  const storedData = await readData();
+  if (!storedData.events || storedData.events.length === 0) {
+    throw new NotFoundError('Could not find any events.');
+  }
+
+  const event = storedData.events.find((ev) => ev.id === id);
+  if (!event) {
+    throw new NotFoundError('Could not find event for id ' + id);
+  }
+
+  return event;
+}
+
+async function add(data) {
+  const storedData = await readData();
+  storedData.events.unshift({ ...data, id: generateId() });
+  await writeData(storedData);
+}
+
+async function replace(id, data) {
+  const storedData = await readData();
+  if (!storedData.events || storedData.events.length === 0) {
+    throw new NotFoundError('Could not find any events.');
+  }
+
+  const index = storedData.events.findIndex((ev) => ev.id === id);
+  if (index < 0) {
+    throw new NotFoundError('Could not find event for id ' + id);
+  }
+
+  storedData.events[index] = { ...data, id };
+
+  await writeData(storedData);
+}
+
+async function remove(id) {
+  const storedData = await readData();
+  const updatedData = storedData.events.filter((ev) => ev.id !== id);
+  await writeData({ ...storedData, events: updatedData });
+}
+
+exports.getAll = getAll;
+exports.get = get;
+exports.add = add;
+exports.replace = replace;
+exports.remove = remove;

backend/data/user.js

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+const { hash } = require('bcryptjs');
+const { v4: generateId } = require('uuid');
+
+const { NotFoundError } = require('../util/errors');
+const { readData, writeData } = require('./util');
+
+async function add(data) {
+  const storedData = await readData();
+  const userId = generateId();
+  const hashedPw = await hash(data.password, 12);
+  if (!storedData.users) {
+    storedData.users = [];
+  }
+  storedData.users.push({ ...data, password: hashedPw, id: userId });
+  await writeData(storedData);
+  return { id: userId, email: data.email };
+}
+
+async function get(email) {
+  const storedData = await readData();
+  if (!storedData.users || storedData.users.length === 0) {
+    throw new NotFoundError('Could not find any users.');
+  }
+
+  const user = storedData.users.find((ev) => ev.email === email);
+  if (!user) {
+    throw new NotFoundError('Could not find user for email ' + email);
+  }
+
+  return user;
+}
+
+exports.add = add;
+exports.get = get;

backend/data/util.js

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+const fs = require('node:fs/promises');
+
+async function readData() {
+  const data = await fs.readFile('events.json', 'utf8');
+  return JSON.parse(data);
+}
+
+async function writeData(data) {
+  await fs.writeFile('events.json', JSON.stringify(data));
+}
+
+exports.readData = readData;
+exports.writeData = writeData;

backend/events.json

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+{
+  "events": [
+    {
+      "title": "A new event",
+      "image": "https://cdn.muenchen-p.de/fl_progressive,q_65/.imaging/stk/responsive/teaser300/dms/va-2016/muenchner-christkindlmarkt/christkindlmarkt-marienplat-logo-hp/document/christkindlmarkt-marienplat-logo-hp.jpg",
+      "date": "2022-10-01",
+      "description": "Some awesome event!",
+      "id": "2a42fcc4-ea21-4bdd-abf6-c40006dc66a9"
+    }
+  ],
+  "users": []
+}