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Better handling of react app

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This commit is contained in:
paul
2026-01-21 14:21:11 -05:00
parent 3c489b7c32
commit ce4f8ba7df
29 changed files with 810 additions and 1180 deletions
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24
client/src/App.css
View File

@@ -2,6 +2,17 @@
text-align: center;
}
.App-logo {
height: 40vmin;
pointer-events: none;
}
@media (prefers-reduced-motion: no-preference) {
.App-logo {
animation: App-logo-spin infinite 20s linear;
}
}
.App-header {
background-color: #282c34;
min-height: 100vh;
@@ -12,3 +23,16 @@
font-size: calc(10px + 2vmin);
color: white;
}
.App-link {
color: #61dafb;
}
@keyframes App-logo-spin {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}

40
client/src/App.js
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@@ -1,27 +1,19 @@
import React from 'react';
import { BrowserRouter as Router, Routes, Route } from 'react-router';
import './App.css';
import AdminMembersPage from './pages/AdminMembersPage';
import React from "react";
import { BrowserRouter, Routes, Route, Link } from "react-router";
import Home from "./pages/Home";
import AdminMembers from "./pages/AdminMembers";
function App() {
export default function App() {
return (
<Router>
<div className="App">
<header className="App-header">
<h1>PTA Vote System</h1>
{/* Add navigation link */}
<nav>
<a href="/admin-members">Upload Members</a>
</nav>
</header>
<main>
<Routes>
<Route path="/admin-members" element={<AdminMembersPage />} />
</Routes>
</main>
</div>
</Router>
);
}
<BrowserRouter>
<nav style={{ padding: "1rem", background: "#f5f5f5" }}>
<Link to="/">Home</Link> | <Link to="/admin-members">Admin Members</Link>
</nav>
export default App;
<Routes>
<Route path="/" element={<Home />} />
<Route path="/admin-members" element={<AdminMembers />} />
</Routes>
</BrowserRouter>
);
}

9
client/src/App.test.js Normal file
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@@ -0,0 +1,9 @@
import React from 'react';
import { render, screen } from '@testing-library/react';
import App from './App';
test('renders learn react link', () => {
render(<App />);
const linkElement = screen.getByText(/learn react/i);
expect(linkElement).toBeInTheDocument();
});

63
client/src/components/MembersForm.js
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@@ -1,63 +0,0 @@
import React, { useState } from 'react';
import axios from '../services/api';
function MembersForm() {
const [year, setYear] = useState('');
const [file, setFile] = useState(null);
const handleSubmit = async (e) => {
e.preventDefault();
if (!year || !file) {
alert('Both year and file are required!');
return;
}
try {
const formData = new FormData();
formData.append('year', year);
formData.append('members.csv', file);
await axios.post('/admin/members', formData, {
headers: { 'Content-Type': 'multipart/form-data' }
});
alert('Members uploaded successfully!');
setYear('');
setFile(null);
} catch (error) {
alert(`Error uploading members: ${error.response?.data.error || error.message}`);
}
};
return (
<form onSubmit={handleSubmit}>
<h1>Upload Members CSV</h1>
<div className="form-group">
<label htmlFor="year">Year:</label>
<input
type="number"
id="year"
value={year}
onChange={(e) => setYear(e.target.value)}
required
/>
</div>
<div className="form-group">
<label htmlFor="members.csv">CSV File:</label>
<input
type="file"
id="members.csv"
accept=".csv"
onChange={(e) => setFile(e.target.files[0])}
required
/>
</div>
<button type="submit">Upload</button>
</form>
);
}
export default MembersForm;

48
client/src/components/VoteForm.js
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@@ -1,48 +0,0 @@
import React, { useState } from 'react';
import axios from 'axios';
function VoteForm() {
const [email, setEmail] = useState('');
const [voteOption, setVoteOption] = useState('');
const handleSubmit = async (e) => {
e.preventDefault();
try {
await axios.post('http://localhost:8080/vote', {
email,
voteOption
});
alert('Vote submitted successfully!');
} catch (error) {
console.error(error);
alert('Error submitting vote');
}
};
return (
<form onSubmit={handleSubmit}>
<input
type="email"
value={email}
onChange={(e) => setEmail(e.target.value)}
placeholder="Enter your email"
required
/>
<select
value={voteOption}
onChange={(e) => setVoteOption(e.target.value)}
required
>
<option value="">Select an option</option>
{/* Add options dynamically based on poll data */}
</select>
<button type="submit">Submit Vote</button>
</form>
);
}
export default VoteForm;

13
client/src/index.css Normal file
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@@ -0,0 +1,13 @@
body {
margin: 0;
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
code {
font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
monospace;
}

16
client/src/index.js
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@@ -1,11 +1,7 @@
import React from 'react';
import {createRoot} from 'react-dom/client';
import './App.css';
import App from './App';
import React from "react";
import { createRoot } from "react-dom/client";
import App from "./App";
import "./index.css"; // optional – keep CRA default styling
const root = createRoot(document.getElementById('root'));
root.render(
<React.StrictMode>
<App />
</React.StrictMode>
);
const container = document.getElementById("root");
createRoot(container).render(<App />);

7
client/src/logo.svg Normal file
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@@ -0,0 +1,7 @@
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3">
<g fill="#61DAFB">
<path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/>
<circle cx="420.9" cy="296.5" r="45.7"/>
<path d="M520.5 78.1z"/>
</g>
</svg>
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83
client/src/pages/AdminMembers.js Normal file
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@@ -0,0 +1,83 @@
import React, { useState } from "react";
export default function AdminMembers() {
const [year, setYear] = useState("");
const [file, setFile] = useState(null);
const [status, setStatus] = useState("");
const handleSubmit = async (e) => {
e.preventDefault();
if (!year) {
setStatus("⚠️ Please enter a year.");
return;
}
if (!file) {
setStatus("⚠️ Please select a CSV file.");
return;
}
const formData = new FormData();
formData.append("year", year);
formData.append("members.csv", file); // name must match the Go handler
try {
const resp = await fetch("/api/admin/members", {
method: "POST",
body: formData,
});
const data = await resp.json();
if (data.success) {
setStatus(`✅ Uploaded!`);
} else {
setStatus(`❌ Server error: ${data.error}`);
}
} catch (err) {
setStatus(`❌ Network error: ${err.message}`);
}
};
return (
<div style={{ padding: "2rem" }}>
<h2>Upload Members CSV</h2>
<form onSubmit={handleSubmit}>
<div style={{ marginBottom: "1rem" }}>
<label htmlFor="year">Year:</label>
<input
type="number"
id="year"
name="year"
value={year}
onChange={(e) => setYear(e.target.value)}
required
min="1900"
max="2100"
style={{ width: "150px", padding: "0.3rem" }}
/>
</div>
<div style={{ marginBottom: "1rem" }}>
<label htmlFor="members.csv">CSV File:</label>
<input
type="file"
id="members.csv"
name="members.csv"
accept=".csv"
onChange={(e) => setFile(e.target.files[0])}
required
/>
</div>
<button type="submit" style={{ padding: "0.5rem 1rem" }}>
Upload
</button>
</form>
{status && <p style={{ marginTop: "1rem" }}>{status}</p>}
</div>
);
}

13
client/src/pages/AdminMembersPage.js
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@@ -1,13 +0,0 @@
import React from 'react';
import MembersForm from '../components/MembersForm';
function AdminMembersPage() {
return (
<div className="admin-members-page">
<h1>Upload Members</h1>
<MembersForm />
</div>
);
}
export default AdminMembersPage;

8
client/src/pages/Home.js Normal file
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@@ -0,0 +1,8 @@
export default function Home() {
return (
<div style={{ padding: "2rem" }}>
<h1>Welcome!</h1>
<p>This is the landing page. Use the navigation bar to go to the admin page.</p>
</div>
);
}

13
client/src/reportWebVitals.js Normal file
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@@ -0,0 +1,13 @@
const reportWebVitals = (onPerfEntry) => {
if (onPerfEntry && onPerfEntry instanceof Function) {
import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
getCLS(onPerfEntry);
getFID(onPerfEntry);
getFCP(onPerfEntry);
getLCP(onPerfEntry);
getTTFB(onPerfEntry);
});
}
};
export default reportWebVitals;

72
client/src/service-worker.js Normal file
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@@ -0,0 +1,72 @@
/* eslint-disable no-restricted-globals */
// This service worker can be customized!
// See https://developers.google.com/web/tools/workbox/modules
// for the list of available Workbox modules, or add any other
// code you'd like.
// You can also remove this file if you'd prefer not to use a
// service worker, and the Workbox build step will be skipped.
import { clientsClaim } from 'workbox-core';
import { ExpirationPlugin } from 'workbox-expiration';
import { precacheAndRoute, createHandlerBoundToURL } from 'workbox-precaching';
import { registerRoute } from 'workbox-routing';
import { StaleWhileRevalidate } from 'workbox-strategies';
clientsClaim();
// Precache all of the assets generated by your build process.
// Their URLs are injected into the manifest variable below.
// This variable must be present somewhere in your service worker file,
// even if you decide not to use precaching. See https://cra.link/PWA
precacheAndRoute(self.__WB_MANIFEST);
// Set up App Shell-style routing, so that all navigation requests
// are fulfilled with your index.html shell. Learn more at
// https://developers.google.com/web/fundamentals/architecture/app-shell
const fileExtensionRegexp = new RegExp('/[^/?]+\\.[^/]+$');
registerRoute(
// Return false to exempt requests from being fulfilled by index.html.
({ request, url }) => {
// If this isn't a navigation, skip.
if (request.mode !== 'navigate') {
return false;
} // If this is a URL that starts with /_, skip.
if (url.pathname.startsWith('/_')) {
return false;
} // If this looks like a URL for a resource, because it contains // a file extension, skip.
if (url.pathname.match(fileExtensionRegexp)) {
return false;
} // Return true to signal that we want to use the handler.
return true;
},
createHandlerBoundToURL(process.env.PUBLIC_URL + '/index.html')
);
// An example runtime caching route for requests that aren't handled by the
// precache, in this case same-origin .png requests like those from in public/
registerRoute(
// Add in any other file extensions or routing criteria as needed.
({ url }) => url.origin === self.location.origin && url.pathname.endsWith('.png'), // Customize this strategy as needed, e.g., by changing to CacheFirst.
new StaleWhileRevalidate({
cacheName: 'images',
plugins: [
// Ensure that once this runtime cache reaches a maximum size the
// least-recently used images are removed.
new ExpirationPlugin({ maxEntries: 50 }),
],
})
);
// This allows the web app to trigger skipWaiting via
// registration.waiting.postMessage({type: 'SKIP_WAITING'})
self.addEventListener('message', (event) => {
if (event.data && event.data.type === 'SKIP_WAITING') {
self.skipWaiting();
}
});
// Any other custom service worker logic can go here.

137
client/src/serviceWorkerRegistration.js Normal file
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@@ -0,0 +1,137 @@
// This optional code is used to register a service worker.
// register() is not called by default.
// This lets the app load faster on subsequent visits in production, and gives
// it offline capabilities. However, it also means that developers (and users)
// will only see deployed updates on subsequent visits to a page, after all the
// existing tabs open on the page have been closed, since previously cached
// resources are updated in the background.
// To learn more about the benefits of this model and instructions on how to
// opt-in, read https://cra.link/PWA
const isLocalhost = Boolean(
window.location.hostname === 'localhost' ||
// [::1] is the IPv6 localhost address.
window.location.hostname === '[::1]' ||
// 127.0.0.0/8 are considered localhost for IPv4.
window.location.hostname.match(/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/)
);
export function register(config) {
if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
// The URL constructor is available in all browsers that support SW.
const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
if (publicUrl.origin !== window.location.origin) {
// Our service worker won't work if PUBLIC_URL is on a different origin
// from what our page is served on. This might happen if a CDN is used to
// serve assets; see https://github.com/facebook/create-react-app/issues/2374
return;
}
window.addEventListener('load', () => {
const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
if (isLocalhost) {
// This is running on localhost. Let's check if a service worker still exists or not.
checkValidServiceWorker(swUrl, config);
// Add some additional logging to localhost, pointing developers to the
// service worker/PWA documentation.
navigator.serviceWorker.ready.then(() => {
console.log(
'This web app is being served cache-first by a service ' +
'worker. To learn more, visit https://cra.link/PWA'
);
});
} else {
// Is not localhost. Just register service worker
registerValidSW(swUrl, config);
}
});
}
}
function registerValidSW(swUrl, config) {
navigator.serviceWorker
.register(swUrl)
.then((registration) => {
registration.onupdatefound = () => {
const installingWorker = registration.installing;
if (installingWorker == null) {
return;
}
installingWorker.onstatechange = () => {
if (installingWorker.state === 'installed') {
if (navigator.serviceWorker.controller) {
// At this point, the updated precached content has been fetched,
// but the previous service worker will still serve the older
// content until all client tabs are closed.
console.log(
'New content is available and will be used when all ' +
'tabs for this page are closed. See https://cra.link/PWA.'
);
// Execute callback
if (config && config.onUpdate) {
config.onUpdate(registration);
}
} else {
// At this point, everything has been precached.
// It's the perfect time to display a
// "Content is cached for offline use." message.
console.log('Content is cached for offline use.');
// Execute callback
if (config && config.onSuccess) {
config.onSuccess(registration);
}
}
}
};
};
})
.catch((error) => {
console.error('Error during service worker registration:', error);
});
}
function checkValidServiceWorker(swUrl, config) {
// Check if the service worker can be found. If it can't reload the page.
fetch(swUrl, {
headers: { 'Service-Worker': 'script' },
})
.then((response) => {
// Ensure service worker exists, and that we really are getting a JS file.
const contentType = response.headers.get('content-type');
if (
response.status === 404 ||
(contentType != null && contentType.indexOf('javascript') === -1)
) {
// No service worker found. Probably a different app. Reload the page.
navigator.serviceWorker.ready.then((registration) => {
registration.unregister().then(() => {
window.location.reload();
});
});
} else {
// Service worker found. Proceed as normal.
registerValidSW(swUrl, config);
}
})
.catch(() => {
console.log('No internet connection found. App is running in offline mode.');
});
}
export function unregister() {
if ('serviceWorker' in navigator) {
navigator.serviceWorker.ready
.then((registration) => {
registration.unregister();
})
.catch((error) => {
console.error(error.message);
});
}
}

7
client/src/services/api.js
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@@ -1,7 +0,0 @@
import axios from 'axios';
const api = axios.create({
baseURL: '/api',
});
export default api;

5
client/src/setupTests.js Normal file
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@@ -0,0 +1,5 @@
// jest-dom adds custom jest matchers for asserting on DOM nodes.
// allows you to do things like:
// expect(element).toHaveTextContent(/react/i)
// learn more: https://github.com/testing-library/jest-dom
import '@testing-library/jest-dom';