bunbun/x-api-cost-crisis-for-indie-dev-tools
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feat: X API Cost Crisis Alert Chrome extension MVP with cost calculator, 8 alternatives, and 12 passing tests

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Bun Bun
2026-06-20 06:23:33 +00:00
commit 7052227f69
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.gitignore
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node_modules/
dist/
*.log
.verdict
.venv/
.DS_Store
*.local
dist-test/src/background.js
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"use strict";
chrome.runtime.onInstalled.addListener(() => {
chrome.storage.local.set({ installed: true, version: '1.0.0' });
});
chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {
if (changeInfo.status === 'complete' && tab.url) {
const isDevPage = tab.url.includes('developer.twitter.com') || tab.url.includes('developer.x.com');
if (isDevPage) {
chrome.action.setBadgeText({ text: '!', tabId });
chrome.action.setBadgeBackgroundColor({ color: '#ef4444' });
}
}
});
dist-test/src/content/content.js
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import { xApiAlternatives, calculateXCost } from '../data/alternatives.js';
function injectWarning() {
const existing = document.getElementById('x-api-crisis-warning');
if (existing)
return;
const banner = document.createElement('div');
banner.id = 'x-api-crisis-warning';
banner.className = 'x-api-crisis-banner';
banner.innerHTML = `
<div class="x-api-crisis-inner">
<span class="x-api-crisis-icon">🚨</span>
<div class="x-api-crisis-text">
<strong>X API Cost Crisis Alert</strong>
<span>New pay-per-use pricing: $10k/mo for 2M reads. Check alternatives before building.</span>
</div>
<a href="#" class="x-api-crisis-btn" id="x-api-crisis-show-alts">See Alternatives</a>
</div>
<div class="x-api-crisis-alts" id="x-api-crisis-alts" style="display:none">
<p><strong>8 indie-friendly alternatives to X API:</strong></p>
<ul>
${xApiAlternatives.slice(0, 5).map(a => `<li><a href="${a.website}" target="_blank" rel="noopener">${a.name}</a> — ${a.freeTier}</li>`).join('')}
</ul>
<p><em>Open the extension popup for full comparison & cost calculator.</em></p>
</div>
`;
document.body.insertBefore(banner, document.body.firstChild);
const btn = document.getElementById('x-api-crisis-show-alts');
const alts = document.getElementById('x-api-crisis-alts');
if (btn && alts) {
btn.addEventListener('click', (e) => {
e.preventDefault();
const visible = alts.style.display !== 'none';
alts.style.display = visible ? 'none' : 'block';
btn.textContent = visible ? 'See Alternatives' : 'Hide Alternatives';
});
}
}
function injectPricingCalculator() {
const existing = document.getElementById('x-api-crisis-calc');
if (existing)
return;
const calc = document.createElement('div');
calc.id = 'x-api-crisis-calc';
calc.className = 'x-api-crisis-calc';
calc.innerHTML = `
<h3>💰 Indie Dev Cost Calculator</h3>
<label>Monthly API Reads: <input type="number" id="x-crisis-reads" value="2000000" min="0" step="10000"></label>
<label>Monthly API Writes: <input type="number" id="x-crisis-writes" value="0" min="0" step="1000"></label>
<div class="x-crisis-result" id="x-crisis-result"></div>
`;
const sidebar = document.querySelector('aside, .sidebar, [role="complementary"]');
if (sidebar) {
sidebar.prepend(calc);
}
else {
const main = document.querySelector('main, article, .content, [role="main"]');
if (main) {
main.prepend(calc);
}
}
const readsInput = document.getElementById('x-crisis-reads');
const writesInput = document.getElementById('x-crisis-writes');
const resultEl = document.getElementById('x-crisis-result');
function update() {
if (!resultEl || !readsInput || !writesInput)
return;
const r = parseInt(readsInput.value, 10) || 0;
const w = parseInt(writesInput.value, 10) || 0;
const est = calculateXCost(r, w);
const altCost = r <= 50000 ? '$0 (Nitter/RSSHub)' : r <= 500000 ? '~$5-49/mo (ScrapingBee/Apify)' : '~$49-200/mo (Apify premium)';
resultEl.innerHTML = `
<div class="x-crisis-row"><span>X API Cost:</span><span class="x-crisis-bad">${est.cost >= 1000 ? '$' + (est.cost / 1000).toFixed(1) + 'k' : '$' + est.cost}/mo</span></div>
<div class="x-crisis-row"><span>Alternative Cost:</span><span class="x-crisis-good">${altCost}</span></div>
<div class="x-crisis-row"><span>Savings:</span><span class="x-crisis-good">${est.cost > 0 ? '90-100%' : 'N/A'}</span></div>
`;
}
readsInput?.addEventListener('input', update);
writesInput?.addEventListener('input', update);
update();
}
function run() {
injectWarning();
if (window.location.pathname.includes('pricing') || window.location.pathname.includes('api')) {
injectPricingCalculator();
}
}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', run);
}
else {
run();
}
dist-test/src/data/alternatives.js
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export const xApiAlternatives = [
{
name: 'Nitter (community instances)',
website: 'https://nitter.net',
freeTier: 'Unlimited (self-hosted or public instances)',
paidTier: 'Self-hosting ~$5/mo VPS',
pricingUrl: 'https://github.com/zedeus/nitter',
description: 'Privacy-friendly Twitter/X front-end that scrapes public profiles and tweets without API keys.',
features: ['No API key required', 'RSS feeds for any user', 'Read-only', 'Self-hostable'],
bestFor: 'Read-only use cases, RSS feeds, monitoring public accounts',
xApiReplacement: 'GET statuses/user_timeline, GET search/tweets'
},
{
name: 'BirdsiteLive (Mastodon bridge)',
website: 'https://github.com/NicolasConstant/BirdsiteLive',
freeTier: 'Self-hosted',
paidTier: 'VPS ~$5-10/mo',
pricingUrl: 'https://github.com/NicolasConstant/BirdsiteLive',
description: 'Bridge that lets you follow Twitter/X accounts from Mastodon. No API billing.',
features: ['Follow X accounts from Mastodon', 'No X API key', 'ActivityPub federation', 'Self-hostable'],
bestFor: 'Social media monitoring via Mastodon ecosystem',
xApiReplacement: 'GET followers/ids, GET friends/ids'
},
{
name: 'RSSHub',
website: 'https://rsshub.app',
freeTier: 'Public instance free, self-hosted free',
paidTier: 'Self-host ~$5/mo or donate',
pricingUrl: 'https://docs.rsshub.app/',
description: 'Open-source RSS feed generator that supports Twitter/X timelines without API.',
features: ['RSS feeds for tweets', 'No API key needed', '300+ sites supported', 'Self-hostable'],
bestFor: 'RSS-based monitoring, newsletters, automation pipelines',
xApiReplacement: 'GET statuses/user_timeline'
},
{
name: 'Wayback Machine / Archive.org',
website: 'https://archive.org',
freeTier: 'Unlimited reads',
paidTier: 'Free',
pricingUrl: 'https://archive.org/donate/',
description: 'Archived snapshots of public Twitter/X pages. Good for historical data.',
features: ['Historical tweet access', 'No rate limits', 'Free forever', 'Bulk export via CDX API'],
bestFor: 'Historical research, compliance, deleted tweet recovery',
xApiReplacement: 'Historical tweet lookup'
},
{
name: 'TweetScraper (开源 Python)',
website: 'https://github.com/twintproject/twint',
freeTier: 'Unlimited (no API)',
paidTier: 'Free (just your machine)',
pricingUrl: 'https://github.com/twintproject/twint',
description: 'Python library that scrapes tweets using Twitter\'s internal guest endpoints.',
features: ['No API key', 'Unlimited scraping', 'No rate limits', 'JSON/CSV export'],
bestFor: 'Data science, research, bulk exports',
xApiReplacement: 'GET search/tweets, GET statuses/user_timeline'
},
{
name: 'Apify Twitter Scraper',
website: 'https://apify.com/quacker/twitter-scraper',
freeTier: '5$/mo platform credit',
paidTier: '~$49/mo for 100K tweets',
pricingUrl: 'https://apify.com/pricing',
description: 'Managed cloud scraping with proxy rotation. Pays per compute, not per API call.',
features: ['Proxy rotation', 'Structured JSON output', 'Scheduled runs', 'No API rate limits'],
bestFor: 'Production pipelines needing reliable extraction without X API billing',
xApiReplacement: 'Full read/write replacement via scraping'
},
{
name: 'ScrapingBee',
website: 'https://www.scrapingbee.com',
freeTier: '1,000 API credits',
paidTier: 'From $49/mo (150K credits)',
pricingUrl: 'https://www.scrapingbee.com/pricing/',
description: 'Web scraping API with proxy rotation. Extract Twitter/X public pages via URL.',
features: ['JavaScript rendering', 'Proxy rotation', 'No X API key', 'Generic web scraper'],
bestFor: 'Generic web scraping including Twitter/X public pages',
xApiReplacement: 'GET any public Twitter page'
},
{
name: 'Mastodon API (switch platform)',
website: 'https://docs.joinmastodon.org/api/',
freeTier: 'Unlimited on most instances',
paidTier: 'Free (most instances) or ~$5/mo hosting',
pricingUrl: 'https://joinmastodon.org/servers',
description: 'Federated Twitter alternative with fully open, free API. No pay-per-use.',
features: ['REST + Streaming API', 'No rate limits on most instances', 'OAuth 2.0', 'Free forever'],
bestFor: 'Building social tools without platform risk or billing surprises',
xApiReplacement: 'Full Twitter API replacement (different platform)'
}
];
export const xApiTiers = {
free: {
name: 'Free',
readLimit: 1500,
writeLimit: 0,
monthlyCost: 0
},
basic: {
name: 'Basic',
readLimit: 10000,
writeLimit: 50000,
monthlyCost: 100
},
pro: {
name: 'Pro',
readLimit: 1000000,
writeLimit: 300000,
monthlyCost: 5000
},
enterprise: {
name: 'Enterprise',
readLimit: 20000000,
writeLimit: 10000000,
monthlyCost: 42000
}
};
export function calculateXCost(reads, writes) {
const tiers = [
{ name: 'Free', maxReads: 1500, maxWrites: 0, cost: 0 },
{ name: 'Basic', maxReads: 10000, maxWrites: 50000, cost: 100 },
{ name: 'Pro', maxReads: 1000000, maxWrites: 300000, cost: 5000 },
{ name: 'Enterprise', maxReads: 20000000, maxWrites: 10000000, cost: 42000 },
];
for (const tier of tiers) {
if (reads <= tier.maxReads && writes <= tier.maxWrites) {
return { tier: tier.name, cost: tier.cost, overage: false };
}
}
return { tier: 'Enterprise+', cost: 42000 + Math.ceil((reads - 20000000) / 1000000) * 10000, overage: true };
}
export function getAlternativesForUseCase(useCase) {
const map = {
'rss': ['RSSHub', 'Nitter (community instances)'],
'scraping': ['TweetScraper (开源 Python)', 'Apify Twitter Scraper', 'ScrapingBee'],
'monitoring': ['Nitter (community instances)', 'RSSHub', 'BirdsiteLive (Mastodon bridge)'],
'historical': ['Wayback Machine / Archive.org'],
'social-bot': ['Mastodon API (switch platform)', 'BirdsiteLive (Mastodon bridge)'],
'default': ['Nitter (community instances)', 'RSSHub', 'TweetScraper (开源 Python)']
};
const names = map[useCase] || map['default'];
return xApiAlternatives.filter(a => names.includes(a.name));
}
dist-test/src/popup/popup.js
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import { xApiAlternatives, calculateXCost, getAlternativesForUseCase } from '../data/alternatives.js';
function formatCurrency(n) {
if (n >= 1000)
return '$' + (n / 1000).toFixed(1) + 'k';
return '$' + n.toString();
}
function updateCostEstimate() {
const readsInput = document.getElementById('reads');
const writesInput = document.getElementById('writes');
const tierNameEl = document.getElementById('tier-name');
const xCostEl = document.getElementById('x-cost');
const warningEl = document.getElementById('warning');
if (!readsInput || !writesInput || !tierNameEl || !xCostEl || !warningEl)
return;
const reads = parseInt(readsInput.value, 10) || 0;
const writes = parseInt(writesInput.value, 10) || 0;
const estimate = calculateXCost(reads, writes);
tierNameEl.textContent = estimate.tier;
xCostEl.textContent = formatCurrency(estimate.cost);
if (estimate.overage) {
warningEl.textContent = '⚠️ Exceeds Enterprise tier. Contact X sales or use alternatives below.';
warningEl.classList.add('show');
}
else if (estimate.cost === 0) {
warningEl.textContent = '✅ Free tier covers your usage. Keep an eye on the 1,500 read limit.';
warningEl.classList.add('show');
}
else if (estimate.tier === 'Enterprise') {
warningEl.textContent = '⚠️ $42k/mo. Strongly consider alternatives below.';
warningEl.classList.add('show');
}
else if (estimate.tier === 'Pro') {
warningEl.textContent = '⚠️ $5k/mo. Alternatives can save 90%+';
warningEl.classList.add('show');
}
else {
warningEl.textContent = '';
warningEl.classList.remove('show');
}
}
function renderAlternatives(filter) {
const list = document.getElementById('alt-list');
if (!list)
return;
const alts = filter === 'all' ? xApiAlternatives : getAlternativesForUseCase(filter);
if (alts.length === 0) {
list.innerHTML = '<div class="empty-state">No alternatives found for this category.</div>';
return;
}
list.innerHTML = alts.map((alt) => {
const isFree = alt.paidTier.includes('Free') || alt.paidTier.includes('self-hosted') || alt.paidTier.includes('Unlimited');
const badgeClass = isFree ? 'badge' : alt.paidTier.includes('$') ? 'badge paid' : 'badge scraping';
const badgeText = isFree ? 'FREE' : 'PAID';
return `
<div class="alt-item">
<h3>
${alt.name}
<span class="${badgeClass}">${badgeText}</span>
</h3>
<p>${alt.description}</p>
<div class="meta">
<span>💰 ${alt.freeTier}</span>
<a href="${alt.website}" target="_blank" rel="noopener">Website →</a>
<a href="${alt.pricingUrl}" target="_blank" rel="noopener">Pricing →</a>
</div>
<div class="features">
${alt.features.map(f => `<span>${f}</span>`).join('')}
</div>
</div>
`;
}).join('');
}
function renderComparison() {
const tbody = document.querySelector('#comparison-table tbody');
if (!tbody)
return;
tbody.innerHTML = xApiAlternatives.map(alt => `
<tr>
<td><strong>${alt.name}</strong></td>
<td>${alt.freeTier}</td>
<td>${alt.paidTier}</td>
<td>${alt.bestFor}</td>
</tr>
`).join('');
}
function init() {
const readsInput = document.getElementById('reads');
const writesInput = document.getElementById('writes');
if (readsInput)
readsInput.addEventListener('input', updateCostEstimate);
if (writesInput)
writesInput.addEventListener('input', updateCostEstimate);
updateCostEstimate();
const filterButtons = document.querySelectorAll('.filter-btn');
filterButtons.forEach(btn => {
btn.addEventListener('click', () => {
filterButtons.forEach(b => b.classList.remove('active'));
btn.classList.add('active');
renderAlternatives(btn.dataset.filter || 'all');
});
});
renderAlternatives('all');
renderComparison();
}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', init);
}
else {
init();
}
dist-test/src/types.js
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export {};
dist-test/test/alternatives.test.js
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import { describe, it } from 'node:test';
import assert from 'node:assert';
import { calculateXCost, getAlternativesForUseCase, xApiAlternatives } from '../src/data/alternatives.js';
describe('calculateXCost', () => {
it('returns Free tier for 0 reads and 0 writes', () => {
const result = calculateXCost(0, 0);
assert.strictEqual(result.tier, 'Free');
assert.strictEqual(result.cost, 0);
assert.strictEqual(result.overage, false);
});
it('returns Free tier for 1500 reads and 0 writes', () => {
const result = calculateXCost(1500, 0);
assert.strictEqual(result.tier, 'Free');
assert.strictEqual(result.cost, 0);
});
it('returns Basic tier for 5000 reads and 100 writes', () => {
const result = calculateXCost(5000, 100);
assert.strictEqual(result.tier, 'Basic');
assert.strictEqual(result.cost, 100);
});
it('returns Pro tier for 500000 reads and 100000 writes', () => {
const result = calculateXCost(500000, 100000);
assert.strictEqual(result.tier, 'Pro');
assert.strictEqual(result.cost, 5000);
});
it('returns Enterprise tier for 5M reads and 500K writes', () => {
const result = calculateXCost(5000000, 500000);
assert.strictEqual(result.tier, 'Enterprise');
assert.strictEqual(result.cost, 42000);
});
it('returns Enterprise+ with overage for 25M reads', () => {
const result = calculateXCost(25000000, 1000000);
assert.strictEqual(result.tier, 'Enterprise+');
assert.strictEqual(result.overage, true);
assert.strictEqual(result.cost, 92000);
});
});
describe('getAlternativesForUseCase', () => {
it('returns RSS alternatives for rss filter', () => {
const alts = getAlternativesForUseCase('rss');
assert.ok(alts.length > 0);
assert.ok(alts.some(a => a.name.includes('RSSHub')));
});
it('returns scraping alternatives for scraping filter', () => {
const alts = getAlternativesForUseCase('scraping');
assert.ok(alts.some(a => a.name.includes('TweetScraper')));
});
it('returns default alternatives for unknown filter', () => {
const alts = getAlternativesForUseCase('unknown-category');
assert.ok(alts.length > 0);
});
});
describe('xApiAlternatives data', () => {
it('has at least 8 alternatives', () => {
assert.ok(xApiAlternatives.length >= 8);
});
it('every alternative has required fields', () => {
for (const alt of xApiAlternatives) {
assert.ok(alt.name, 'name is required');
assert.ok(alt.website, 'website is required');
assert.ok(alt.freeTier, 'freeTier is required');
assert.ok(alt.paidTier, 'paidTier is required');
assert.ok(alt.description, 'description is required');
assert.ok(alt.features.length > 0, 'features must not be empty');
assert.ok(alt.bestFor, 'bestFor is required');
}
});
it('all websites are valid URLs', () => {
for (const alt of xApiAlternatives) {
assert.ok(alt.website.startsWith('http'), `${alt.name} website must start with http`);
}
});
});
generate-icons.cjs
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const fs = require('fs');
const path = require('path');
// Minimal valid 1x1 red PNG (base64) - scaled up to requested sizes via simple pixel repetition
// For a real extension build, we just need valid PNG files. Chrome won't validate content during build.
// We'll create minimal valid PNG files.
function createSolidColorPNG(width, height, r, g, b) {
// PNG signature
const signature = Buffer.from([0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A]);
// Helper: create PNG chunk
function makeChunk(type, data) {
const typeBuf = Buffer.from(type, 'ascii');
const lenBuf = Buffer.alloc(4);
lenBuf.writeUInt32BE(data.length, 0);
const crc = require('zlib').crc32(Buffer.concat([typeBuf, data]));
const crcBuf = Buffer.alloc(4);
crcBuf.writeUInt32BE(crc, 0);
return Buffer.concat([lenBuf, typeBuf, data, crcBuf]);
}
// IHDR chunk
const ihdr = Buffer.alloc(13);
ihdr.writeUInt32BE(width, 0);
ihdr.writeUInt32BE(height, 4);
ihdr[8] = 8; // bit depth
ihdr[9] = 2; // color type RGB
ihdr[10] = 0; // compression
ihdr[11] = 0; // filter method
ihdr[12] = 0; // interlace
// IDAT chunk - raw image data: filter byte + RGB pixels per row
const rowSize = 1 + width * 3;
const rawData = Buffer.alloc(height * rowSize);
for (let y = 0; y < height; y++) {
rawData[y * rowSize] = 0; // filter byte: none
for (let x = 0; x < width; x++) {
rawData[y * rowSize + 1 + x * 3] = r;
rawData[y * rowSize + 1 + x * 3 + 1] = g;
rawData[y * rowSize + 1 + x * 3 + 2] = b;
}
}
const compressed = require('zlib').deflateSync(rawData);
// IEND chunk
const iend = makeChunk('IEND', Buffer.alloc(0));
return Buffer.concat([
signature,
makeChunk('IHDR', ihdr),
makeChunk('IDAT', compressed),
iend
]);
}
const outDir = path.join(__dirname, 'icons');
fs.mkdirSync(outDir, { recursive: true });
fs.writeFileSync(path.join(outDir, 'icon16.png'), createSolidColorPNG(16, 16, 239, 68, 68));
fs.writeFileSync(path.join(outDir, 'icon48.png'), createSolidColorPNG(48, 48, 239, 68, 68));
fs.writeFileSync(path.join(outDir, 'icon128.png'), createSolidColorPNG(128, 128, 239, 68, 68));
console.log('Icons generated successfully');
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package-lock.json
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package.json
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{
"name": "x-api-cost-crisis-for-indie-dev-tools",
"version": "1.0.0",
"type": "module",
"scripts": {
"build": "vite build",
"test": "node --test dist-test/test/alternatives.test.js",
"dev": "vite"
},
"devDependencies": {
"@crxjs/vite-plugin": "^2.0.0-beta.28",
"@types/chrome": "^0.0.268",
"@types/node": "^20.12.0",
"typescript": "^5.4.5",
"vite": "^5.2.11"
}
}
src/background.ts
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chrome.runtime.onInstalled.addListener(() => {
chrome.storage.local.set({ installed: true, version: '1.0.0' })
})
chrome.tabs.onUpdated.addListener((tabId, changeInfo, tab) => {
if (changeInfo.status === 'complete' && tab.url) {
const isDevPage = tab.url.includes('developer.twitter.com') || tab.url.includes('developer.x.com')
if (isDevPage) {
chrome.action.setBadgeText({ text: '!', tabId })
chrome.action.setBadgeBackgroundColor({ color: '#ef4444' })
}
}
})
src/content/content.css
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.x-api-crisis-banner {
position: fixed;
top: 0;
left: 0;
right: 0;
z-index: 999999;
background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
color: #fff;
padding: 12px 16px;
font-family: system-ui, -apple-system, sans-serif;
font-size: 14px;
box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.x-api-crisis-inner {
display: flex;
align-items: center;
gap: 12px;
max-width: 1200px;
margin: 0 auto;
}
.x-api-crisis-icon {
font-size: 20px;
flex-shrink: 0;
}
.x-api-crisis-text {
display: flex;
flex-direction: column;
flex: 1;
gap: 2px;
}
.x-api-crisis-text strong {
font-size: 15px;
}
.x-api-crisis-text span {
font-size: 13px;
opacity: 0.95;
}
.x-api-crisis-btn {
background: #fff;
color: #dc2626;
padding: 6px 14px;
border-radius: 6px;
text-decoration: none;
font-weight: 600;
font-size: 13px;
white-space: nowrap;
flex-shrink: 0;
transition: background 0.15s;
}
.x-api-crisis-btn:hover {
background: #fef2f2;
}
.x-api-crisis-alts {
max-width: 1200px;
margin: 10px auto 0;
padding: 12px 16px;
background: rgba(0,0,0,0.25);
border-radius: 8px;
font-size: 13px;
}
.x-api-crisis-alts ul {
margin: 8px 0;
padding-left: 20px;
}
.x-api-crisis-alts li {
margin: 4px 0;
}
.x-api-crisis-alts a {
color: #fecaca;
text-decoration: underline;
}
.x-api-crisis-calc {
background: #1e293b;
border: 1px solid #334155;
border-radius: 8px;
padding: 14px;
margin: 12px 0;
color: #f1f5f9;
font-family: system-ui, -apple-system, sans-serif;
font-size: 13px;
}
.x-api-crisis-calc h3 {
margin: 0 0 10px 0;
font-size: 14px;
color: #ef4444;
}
.x-api-crisis-calc label {
display: block;
margin-bottom: 8px;
}
.x-api-crisis-calc input {
margin-left: 8px;
padding: 4px 8px;
border: 1px solid #334155;
border-radius: 4px;
background: #0f172a;
color: #f1f5f9;
width: 120px;
}
.x-crisis-result {
margin-top: 10px;
padding: 8px;
background: #0f172a;
border-radius: 6px;
}
.x-crisis-row {
display: flex;
justify-content: space-between;
padding: 4px 0;
}
.x-crisis-bad {
color: #ef4444;
font-weight: 700;
}
.x-crisis-good {
color: #22c55e;
font-weight: 700;
}
src/content/content.ts
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import { xApiAlternatives, calculateXCost } from '../data/alternatives.js'
function injectWarning(): void {
const existing = document.getElementById('x-api-crisis-warning')
if (existing) return
const banner = document.createElement('div')
banner.id = 'x-api-crisis-warning'
banner.className = 'x-api-crisis-banner'
banner.innerHTML = `
<div class="x-api-crisis-inner">
<span class="x-api-crisis-icon">🚨</span>
<div class="x-api-crisis-text">
<strong>X API Cost Crisis Alert</strong>
<span>New pay-per-use pricing: $10k/mo for 2M reads. Check alternatives before building.</span>
</div>
<a href="#" class="x-api-crisis-btn" id="x-api-crisis-show-alts">See Alternatives</a>
</div>
<div class="x-api-crisis-alts" id="x-api-crisis-alts" style="display:none">
<p><strong>8 indie-friendly alternatives to X API:</strong></p>
<ul>
${xApiAlternatives.slice(0, 5).map(a => `<li><a href="${a.website}" target="_blank" rel="noopener">${a.name}</a> — ${a.freeTier}</li>`).join('')}
</ul>
<p><em>Open the extension popup for full comparison & cost calculator.</em></p>
</div>
`
document.body.insertBefore(banner, document.body.firstChild)
const btn = document.getElementById('x-api-crisis-show-alts')
const alts = document.getElementById('x-api-crisis-alts')
if (btn && alts) {
btn.addEventListener('click', (e) => {
e.preventDefault()
const visible = alts.style.display !== 'none'
alts.style.display = visible ? 'none' : 'block'
btn.textContent = visible ? 'See Alternatives' : 'Hide Alternatives'
})
}
}
function injectPricingCalculator(): void {
const existing = document.getElementById('x-api-crisis-calc')
if (existing) return
const calc = document.createElement('div')
calc.id = 'x-api-crisis-calc'
calc.className = 'x-api-crisis-calc'
calc.innerHTML = `
<h3>💰 Indie Dev Cost Calculator</h3>
<label>Monthly API Reads: <input type="number" id="x-crisis-reads" value="2000000" min="0" step="10000"></label>
<label>Monthly API Writes: <input type="number" id="x-crisis-writes" value="0" min="0" step="1000"></label>
<div class="x-crisis-result" id="x-crisis-result"></div>
`
const sidebar = document.querySelector('aside, .sidebar, [role="complementary"]')
if (sidebar) {
sidebar.prepend(calc)
} else {
const main = document.querySelector('main, article, .content, [role="main"]')
if (main) {
main.prepend(calc)
}
}
const readsInput = document.getElementById('x-crisis-reads') as HTMLInputElement
const writesInput = document.getElementById('x-crisis-writes') as HTMLInputElement
const resultEl = document.getElementById('x-crisis-result')
function update() {
if (!resultEl || !readsInput || !writesInput) return
const r = parseInt(readsInput.value, 10) || 0
const w = parseInt(writesInput.value, 10) || 0
const est = calculateXCost(r, w)
const altCost = r <= 50000 ? '$0 (Nitter/RSSHub)' : r <= 500000 ? '~$5-49/mo (ScrapingBee/Apify)' : '~$49-200/mo (Apify premium)'
resultEl.innerHTML = `
<div class="x-crisis-row"><span>X API Cost:</span><span class="x-crisis-bad">${est.cost >= 1000 ? '$' + (est.cost/1000).toFixed(1) + 'k' : '$' + est.cost}/mo</span></div>
<div class="x-crisis-row"><span>Alternative Cost:</span><span class="x-crisis-good">${altCost}</span></div>
<div class="x-crisis-row"><span>Savings:</span><span class="x-crisis-good">${est.cost > 0 ? '90-100%' : 'N/A'}</span></div>
`
}
readsInput?.addEventListener('input', update)
writesInput?.addEventListener('input', update)
update()
}
function run(): void {
injectWarning()
if (window.location.pathname.includes('pricing') || window.location.pathname.includes('api')) {
injectPricingCalculator()
}
}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', run)
} else {
run()
}
src/data/alternatives.ts
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import type { ApiAlternative } from '../types.js'
export const xApiAlternatives: ApiAlternative[] = [
{
name: 'Nitter (community instances)',
website: 'https://nitter.net',
freeTier: 'Unlimited (self-hosted or public instances)',
paidTier: 'Self-hosting ~$5/mo VPS',
pricingUrl: 'https://github.com/zedeus/nitter',
description: 'Privacy-friendly Twitter/X front-end that scrapes public profiles and tweets without API keys.',
features: ['No API key required', 'RSS feeds for any user', 'Read-only', 'Self-hostable'],
bestFor: 'Read-only use cases, RSS feeds, monitoring public accounts',
xApiReplacement: 'GET statuses/user_timeline, GET search/tweets'
},
{
name: 'BirdsiteLive (Mastodon bridge)',
website: 'https://github.com/NicolasConstant/BirdsiteLive',
freeTier: 'Self-hosted',
paidTier: 'VPS ~$5-10/mo',
pricingUrl: 'https://github.com/NicolasConstant/BirdsiteLive',
description: 'Bridge that lets you follow Twitter/X accounts from Mastodon. No API billing.',
features: ['Follow X accounts from Mastodon', 'No X API key', 'ActivityPub federation', 'Self-hostable'],
bestFor: 'Social media monitoring via Mastodon ecosystem',
xApiReplacement: 'GET followers/ids, GET friends/ids'
},
{
name: 'RSSHub',
website: 'https://rsshub.app',
freeTier: 'Public instance free, self-hosted free',
paidTier: 'Self-host ~$5/mo or donate',
pricingUrl: 'https://docs.rsshub.app/',
description: 'Open-source RSS feed generator that supports Twitter/X timelines without API.',
features: ['RSS feeds for tweets', 'No API key needed', '300+ sites supported', 'Self-hostable'],
bestFor: 'RSS-based monitoring, newsletters, automation pipelines',
xApiReplacement: 'GET statuses/user_timeline'
},
{
name: 'Wayback Machine / Archive.org',
website: 'https://archive.org',
freeTier: 'Unlimited reads',
paidTier: 'Free',
pricingUrl: 'https://archive.org/donate/',
description: 'Archived snapshots of public Twitter/X pages. Good for historical data.',
features: ['Historical tweet access', 'No rate limits', 'Free forever', 'Bulk export via CDX API'],
bestFor: 'Historical research, compliance, deleted tweet recovery',
xApiReplacement: 'Historical tweet lookup'
},
{
name: 'TweetScraper (开源 Python)',
website: 'https://github.com/twintproject/twint',
freeTier: 'Unlimited (no API)',
paidTier: 'Free (just your machine)',
pricingUrl: 'https://github.com/twintproject/twint',
description: 'Python library that scrapes tweets using Twitter\'s internal guest endpoints.',
features: ['No API key', 'Unlimited scraping', 'No rate limits', 'JSON/CSV export'],
bestFor: 'Data science, research, bulk exports',
xApiReplacement: 'GET search/tweets, GET statuses/user_timeline'
},
{
name: 'Apify Twitter Scraper',
website: 'https://apify.com/quacker/twitter-scraper',
freeTier: '5$/mo platform credit',
paidTier: '~$49/mo for 100K tweets',
pricingUrl: 'https://apify.com/pricing',
description: 'Managed cloud scraping with proxy rotation. Pays per compute, not per API call.',
features: ['Proxy rotation', 'Structured JSON output', 'Scheduled runs', 'No API rate limits'],
bestFor: 'Production pipelines needing reliable extraction without X API billing',
xApiReplacement: 'Full read/write replacement via scraping'
},
{
name: 'ScrapingBee',
website: 'https://www.scrapingbee.com',
freeTier: '1,000 API credits',
paidTier: 'From $49/mo (150K credits)',
pricingUrl: 'https://www.scrapingbee.com/pricing/',
description: 'Web scraping API with proxy rotation. Extract Twitter/X public pages via URL.',
features: ['JavaScript rendering', 'Proxy rotation', 'No X API key', 'Generic web scraper'],
bestFor: 'Generic web scraping including Twitter/X public pages',
xApiReplacement: 'GET any public Twitter page'
},
{
name: 'Mastodon API (switch platform)',
website: 'https://docs.joinmastodon.org/api/',
freeTier: 'Unlimited on most instances',
paidTier: 'Free (most instances) or ~$5/mo hosting',
pricingUrl: 'https://joinmastodon.org/servers',
description: 'Federated Twitter alternative with fully open, free API. No pay-per-use.',
features: ['REST + Streaming API', 'No rate limits on most instances', 'OAuth 2.0', 'Free forever'],
bestFor: 'Building social tools without platform risk or billing surprises',
xApiReplacement: 'Full Twitter API replacement (different platform)'
}
]
export const xApiTiers = {
free: {
name: 'Free',
readLimit: 1500,
writeLimit: 0,
monthlyCost: 0
},
basic: {
name: 'Basic',
readLimit: 10000,
writeLimit: 50000,
monthlyCost: 100
},
pro: {
name: 'Pro',
readLimit: 1000000,
writeLimit: 300000,
monthlyCost: 5000
},
enterprise: {
name: 'Enterprise',
readLimit: 20000000,
writeLimit: 10000000,
monthlyCost: 42000
}
}
export function calculateXCost(reads: number, writes: number): { tier: string; cost: number; overage: boolean } {
const tiers = [
{ name: 'Free', maxReads: 1500, maxWrites: 0, cost: 0 },
{ name: 'Basic', maxReads: 10000, maxWrites: 50000, cost: 100 },
{ name: 'Pro', maxReads: 1000000, maxWrites: 300000, cost: 5000 },
{ name: 'Enterprise', maxReads: 20000000, maxWrites: 10000000, cost: 42000 },
]
for (const tier of tiers) {
if (reads <= tier.maxReads && writes <= tier.maxWrites) {
return { tier: tier.name, cost: tier.cost, overage: false }
}
}
return { tier: 'Enterprise+', cost: 42000 + Math.ceil((reads - 20000000) / 1000000) * 10000, overage: true }
}
export function getAlternativesForUseCase(useCase: string): ApiAlternative[] {
const map: Record<string, string[]> = {
'rss': ['RSSHub', 'Nitter (community instances)'],
'scraping': ['TweetScraper (开源 Python)', 'Apify Twitter Scraper', 'ScrapingBee'],
'monitoring': ['Nitter (community instances)', 'RSSHub', 'BirdsiteLive (Mastodon bridge)'],
'historical': ['Wayback Machine / Archive.org'],
'social-bot': ['Mastodon API (switch platform)', 'BirdsiteLive (Mastodon bridge)'],
'default': ['Nitter (community instances)', 'RSSHub', 'TweetScraper (开源 Python)']
}
const names = map[useCase] || map['default']
return xApiAlternatives.filter(a => names.includes(a.name))
}
src/manifest.json
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{
"manifest_version": 3,
"name": "X API Cost Crisis Alert",
"version": "1.0.0",
"description": "Warns indie devs about X API costs and suggests affordable alternatives",
"permissions": ["activeTab", "storage"],
"host_permissions": ["*://developer.twitter.com/*", "*://developer.x.com/*"],
"action": {
"default_popup": "src/popup/popup.html",
"default_icon": {
"16": "icons/icon16.png",
"48": "icons/icon48.png",
"128": "icons/icon128.png"
}
},
"icons": {
"16": "icons/icon16.png",
"48": "icons/icon48.png",
"128": "icons/icon128.png"
},
"content_scripts": [
{
"matches": ["*://developer.twitter.com/*", "*://developer.x.com/*"],
"js": ["src/content/content.ts"],
"css": ["src/content/content.css"],
"run_at": "document_idle"
}
],
"background": {
"service_worker": "src/background.ts",
"type": "module"
}
}
src/popup/popup.css
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:root {
--bg: #0f172a;
--card: #1e293b;
--text: #f1f5f9;
--text-muted: #94a3b8;
--accent: #ef4444;
--accent-green: #22c55e;
--accent-blue: #3b82f6;
--border: #334155;
--radius: 8px;
--font: system-ui, -apple-system, sans-serif;
}
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
body {
font-family: var(--font);
background: var(--bg);
color: var(--text);
width: 400px;
min-height: 500px;
}
.container {
padding: 16px;
}
header {
text-align: center;
margin-bottom: 16px;
}
header h1 {
font-size: 1.25rem;
color: var(--accent);
margin-bottom: 4px;
}
.subtitle {
font-size: 0.75rem;
color: var(--text-muted);
}
.card {
background: var(--card);
border: 1px solid var(--border);
border-radius: var(--radius);
padding: 14px;
margin-bottom: 14px;
}
.card h2 {
font-size: 1rem;
margin-bottom: 12px;
display: flex;
align-items: center;
gap: 6px;
}
.input-group {
margin-bottom: 10px;
}
.input-group label {
display: block;
font-size: 0.8rem;
color: var(--text-muted);
margin-bottom: 4px;
}
.input-group input {
width: 100%;
padding: 8px 10px;
border: 1px solid var(--border);
border-radius: var(--radius);
background: var(--bg);
color: var(--text);
font-size: 0.9rem;
}
.result {
margin-top: 12px;
padding: 10px;
background: var(--bg);
border-radius: var(--radius);
border-left: 3px solid var(--accent);
}
.result .tier {
font-size: 0.85rem;
color: var(--text-muted);
}
.result .price {
font-size: 1.1rem;
font-weight: 700;
color: var(--accent);
margin-top: 4px;
}
.result .warning {
font-size: 0.75rem;
color: var(--accent);
margin-top: 6px;
display: none;
}
.result .warning.show {
display: block;
}
.filter {
display: flex;
flex-wrap: wrap;
gap: 6px;
margin-bottom: 10px;
}
.filter-btn {
padding: 4px 10px;
border: 1px solid var(--border);
border-radius: var(--radius);
background: var(--bg);
color: var(--text-muted);
font-size: 0.75rem;
cursor: pointer;
transition: all 0.15s;
}
.filter-btn:hover {
border-color: var(--accent-blue);
color: var(--text);
}
.filter-btn.active {
background: var(--accent-blue);
border-color: var(--accent-blue);
color: #fff;
}
.alt-list {
max-height: 220px;
overflow-y: auto;
}
.alt-item {
padding: 10px;
background: var(--bg);
border-radius: var(--radius);
margin-bottom: 8px;
border-left: 3px solid var(--accent-green);
}
.alt-item h3 {
font-size: 0.9rem;
margin-bottom: 4px;
display: flex;
justify-content: space-between;
align-items: center;
}
.alt-item .badge {
font-size: 0.65rem;
padding: 2px 6px;
border-radius: 4px;
background: var(--accent-green);
color: #fff;
}
.alt-item .badge.scraping {
background: var(--accent-blue);
}
.alt-item .badge.paid {
background: #f59e0b;
color: #000;
}
.alt-item p {
font-size: 0.75rem;
color: var(--text-muted);
line-height: 1.4;
}
.alt-item .meta {
font-size: 0.7rem;
color: var(--text-muted);
margin-top: 4px;
display: flex;
gap: 8px;
}
.alt-item .meta a {
color: var(--accent-blue);
text-decoration: none;
}
.alt-item .meta a:hover {
text-decoration: underline;
}
.alt-item .features {
display: flex;
flex-wrap: wrap;
gap: 4px;
margin-top: 6px;
}
.alt-item .features span {
font-size: 0.65rem;
padding: 2px 6px;
border-radius: 4px;
background: var(--border);
color: var(--text-muted);
}
table {
width: 100%;
border-collapse: collapse;
font-size: 0.75rem;
}
th, td {
text-align: left;
padding: 6px 4px;
border-bottom: 1px solid var(--border);
}
th {
color: var(--text-muted);
font-weight: 600;
}
td {
color: var(--text);
}
tr:last-child td {
border-bottom: none;
}
tr:hover td {
background: var(--bg);
}
footer {
text-align: center;
font-size: 0.7rem;
color: var(--text-muted);
margin-top: 8px;
}
footer .disclaimer {
font-size: 0.65rem;
opacity: 0.7;
margin-top: 4px;
}
.empty-state {
text-align: center;
padding: 20px;
color: var(--text-muted);
font-size: 0.8rem;
}
src/popup/popup.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>X API Cost Crisis Alert</title>
<link rel="stylesheet" href="popup.css" />
</head>
<body>
<div class="container">
<header>
<h1>🚨 X API Cost Crisis</h1>
<p class="subtitle">Indie dev alternatives to $10k/mo API bills</p>
</header>
<section id="cost-calculator" class="card">
<h2>💰 Cost Estimator</h2>
<div class="input-group">
<label for="reads">Monthly Reads</label>
<input type="number" id="reads" value="50000" min="0" step="1000" />
</div>
<div class="input-group">
<label for="writes">Monthly Writes</label>
<input type="number" id="writes" value="1000" min="0" step="100" />
</div>
<div class="result" id="result">
<div class="tier">Tier: <span id="tier-name">-</span></div>
<div class="price">X API Cost: <span id="x-cost">-</span>/mo</div>
<div class="warning" id="warning"></div>
</div>
</section>
<section id="alternatives" class="card">
<h2>🛡️ Alternatives</h2>
<div class="filter">
<button class="filter-btn active" data-filter="all">All</button>
<button class="filter-btn" data-filter="rss">RSS</button>
<button class="filter-btn" data-filter="scraping">Scraping</button>
<button class="filter-btn" data-filter="monitoring">Monitoring</button>
<button class="filter-btn" data-filter="historical">Historical</button>
<button class="filter-btn" data-filter="social-bot">Social Bot</button>
</div>
<div id="alt-list" class="alt-list">
<!-- Filled by JS -->
</div>
</section>
<section id="comparison" class="card">
<h2>📊 X API vs Alternatives</h2>
<table id="comparison-table">
<thead>
<tr>
<th>Service</th>
<th>Free Tier</th>
<th>Paid Tier</th>
<th>Best For</th>
</tr>
</thead>
<tbody>
<!-- Filled by JS -->
</tbody>
</table>
</section>
<footer>
<p>Built by Bun Bun Labs</p>
<p class="disclaimer">Not affiliated with X Corp. Data is public knowledge.</p>
</footer>
</div>
<script type="module" src="popup.ts"></script>
</body>
</html>
src/popup/popup.ts
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import { xApiAlternatives, calculateXCost, getAlternativesForUseCase } from '../data/alternatives.js'
import type { ApiAlternative } from '../types.js'
function formatCurrency(n: number): string {
if (n >= 1000) return '$' + (n / 1000).toFixed(1) + 'k'
return '$' + n.toString()
}
function updateCostEstimate(): void {
const readsInput = document.getElementById('reads') as HTMLInputElement
const writesInput = document.getElementById('writes') as HTMLInputElement
const tierNameEl = document.getElementById('tier-name')
const xCostEl = document.getElementById('x-cost')
const warningEl = document.getElementById('warning')
if (!readsInput || !writesInput || !tierNameEl || !xCostEl || !warningEl) return
const reads = parseInt(readsInput.value, 10) || 0
const writes = parseInt(writesInput.value, 10) || 0
const estimate = calculateXCost(reads, writes)
tierNameEl.textContent = estimate.tier
xCostEl.textContent = formatCurrency(estimate.cost)
if (estimate.overage) {
warningEl.textContent = '⚠️ Exceeds Enterprise tier. Contact X sales or use alternatives below.'
warningEl.classList.add('show')
} else if (estimate.cost === 0) {
warningEl.textContent = '✅ Free tier covers your usage. Keep an eye on the 1,500 read limit.'
warningEl.classList.add('show')
} else if (estimate.tier === 'Enterprise') {
warningEl.textContent = '⚠️ $42k/mo. Strongly consider alternatives below.'
warningEl.classList.add('show')
} else if (estimate.tier === 'Pro') {
warningEl.textContent = '⚠️ $5k/mo. Alternatives can save 90%+'
warningEl.classList.add('show')
} else {
warningEl.textContent = ''
warningEl.classList.remove('show')
}
}
function renderAlternatives(filter: string): void {
const list = document.getElementById('alt-list')
if (!list) return
const alts = filter === 'all' ? xApiAlternatives : getAlternativesForUseCase(filter)
if (alts.length === 0) {
list.innerHTML = '<div class="empty-state">No alternatives found for this category.</div>'
return
}
list.innerHTML = alts.map((alt: ApiAlternative) => {
const isFree = alt.paidTier.includes('Free') || alt.paidTier.includes('self-hosted') || alt.paidTier.includes('Unlimited')
const badgeClass = isFree ? 'badge' : alt.paidTier.includes('$') ? 'badge paid' : 'badge scraping'
const badgeText = isFree ? 'FREE' : 'PAID'
return `
<div class="alt-item">
<h3>
${alt.name}
<span class="${badgeClass}">${badgeText}</span>
</h3>
<p>${alt.description}</p>
<div class="meta">
<span>💰 ${alt.freeTier}</span>
<a href="${alt.website}" target="_blank" rel="noopener">Website →</a>
<a href="${alt.pricingUrl}" target="_blank" rel="noopener">Pricing →</a>
</div>
<div class="features">
${alt.features.map(f => `<span>${f}</span>`).join('')}
</div>
</div>
`
}).join('')
}
function renderComparison(): void {
const tbody = document.querySelector('#comparison-table tbody')
if (!tbody) return
tbody.innerHTML = xApiAlternatives.map(alt => `
<tr>
<td><strong>${alt.name}</strong></td>
<td>${alt.freeTier}</td>
<td>${alt.paidTier}</td>
<td>${alt.bestFor}</td>
</tr>
`).join('')
}
function init(): void {
const readsInput = document.getElementById('reads')
const writesInput = document.getElementById('writes')
if (readsInput) readsInput.addEventListener('input', updateCostEstimate)
if (writesInput) writesInput.addEventListener('input', updateCostEstimate)
updateCostEstimate()
const filterButtons = document.querySelectorAll('.filter-btn')
filterButtons.forEach(btn => {
btn.addEventListener('click', () => {
filterButtons.forEach(b => b.classList.remove('active'))
btn.classList.add('active')
renderAlternatives((btn as HTMLElement).dataset.filter || 'all')
})
})
renderAlternatives('all')
renderComparison()
}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', init)
} else {
init()
}
src/types.ts
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// ---- Types ----
export interface ApiAlternative {
name: string;
website: string;
freeTier: string;
paidTier: string;
pricingUrl: string;
description: string;
features: string[];
bestFor: string;
xApiReplacement: string;
}
export interface CostEstimate {
monthlyReads: number;
monthlyWrites: number;
xCost: number;
alternatives: { name: string; cost: number | string }[];
}
test/alternatives.test.ts
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import { describe, it } from 'node:test'
import assert from 'node:assert'
import { calculateXCost, getAlternativesForUseCase, xApiAlternatives } from '../src/data/alternatives.js'
describe('calculateXCost', () => {
it('returns Free tier for 0 reads and 0 writes', () => {
const result = calculateXCost(0, 0)
assert.strictEqual(result.tier, 'Free')
assert.strictEqual(result.cost, 0)
assert.strictEqual(result.overage, false)
})
it('returns Free tier for 1500 reads and 0 writes', () => {
const result = calculateXCost(1500, 0)
assert.strictEqual(result.tier, 'Free')
assert.strictEqual(result.cost, 0)
})
it('returns Basic tier for 5000 reads and 100 writes', () => {
const result = calculateXCost(5000, 100)
assert.strictEqual(result.tier, 'Basic')
assert.strictEqual(result.cost, 100)
})
it('returns Pro tier for 500000 reads and 100000 writes', () => {
const result = calculateXCost(500000, 100000)
assert.strictEqual(result.tier, 'Pro')
assert.strictEqual(result.cost, 5000)
})
it('returns Enterprise tier for 5M reads and 500K writes', () => {
const result = calculateXCost(5000000, 500000)
assert.strictEqual(result.tier, 'Enterprise')
assert.strictEqual(result.cost, 42000)
})
it('returns Enterprise+ with overage for 25M reads', () => {
const result = calculateXCost(25000000, 1000000)
assert.strictEqual(result.tier, 'Enterprise+')
assert.strictEqual(result.overage, true)
assert.strictEqual(result.cost, 92000)
})
})
describe('getAlternativesForUseCase', () => {
it('returns RSS alternatives for rss filter', () => {
const alts = getAlternativesForUseCase('rss')
assert.ok(alts.length > 0)
assert.ok(alts.some(a => a.name.includes('RSSHub')))
})
it('returns scraping alternatives for scraping filter', () => {
const alts = getAlternativesForUseCase('scraping')
assert.ok(alts.some(a => a.name.includes('TweetScraper')))
})
it('returns default alternatives for unknown filter', () => {
const alts = getAlternativesForUseCase('unknown-category')
assert.ok(alts.length > 0)
})
})
describe('xApiAlternatives data', () => {
it('has at least 8 alternatives', () => {
assert.ok(xApiAlternatives.length >= 8)
})
it('every alternative has required fields', () => {
for (const alt of xApiAlternatives) {
assert.ok(alt.name, 'name is required')
assert.ok(alt.website, 'website is required')
assert.ok(alt.freeTier, 'freeTier is required')
assert.ok(alt.paidTier, 'paidTier is required')
assert.ok(alt.description, 'description is required')
assert.ok(alt.features.length > 0, 'features must not be empty')
assert.ok(alt.bestFor, 'bestFor is required')
}
})
it('all websites are valid URLs', () => {
for (const alt of xApiAlternatives) {
assert.ok(alt.website.startsWith('http'), `${alt.name} website must start with http`)
}
})
})
tsconfig.json
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{
"compilerOptions": {
"target": "ES2022",
"module": "ES2022",
"moduleResolution": "bundler",
"strict": true,
"esModuleInterop": true,
"skipLibCheck": true,
"forceConsistentCasingInFileNames": true,
"outDir": "dist-test",
"rootDir": ".",
"types": ["node", "chrome"]
},
"include": ["src/**/*", "test/**/*"]
}
vite.config.ts
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import { defineConfig } from 'vite'
import { crx } from '@crxjs/vite-plugin'
import manifest from './src/manifest.json' assert { type: 'json' }
export default defineConfig({
build: {
outDir: 'dist',
emptyOutDir: true,
rollupOptions: {
input: {
popup: 'src/popup/popup.html'
}
}
},
plugins: [crx({ manifest })],
})