') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); })(); GitHub - boostedtechnology/interview-pocket-api: Interview assessment for Pocket API · GitHub
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Boosted Pocket API

A bookmark management service API built with Fastify and Prisma.

Context

This codebase was developed by a small team (2 engineers) to power a bookmarking app, Pocket. The service currently handles approximately 1,000 daily active users and is being considered for acquisition by a larger company with potential expansion to 100k+ users.

Your Task

Time: 30-60 minutes (review only - no need to build or run the project, unless you want)

Please review this codebase and prepare to discuss the following in our conversation:

  1. What would you improve first, and why? Consider: impact, effort, risk

  2. What trade-offs do you think were made? Consider: speed vs quality, simplicity vs extensibility

  3. Where might this break at scale or in production? Consider: 100k users, high write volume, edge cases

  4. What questions would you ask before making changes? Consider: product context, team constraints, priorities

Project Structure

src/ # Most application logic
prisma/ # Database schema
tests/ # Test suite

Tech Stack

  • Node.js + TypeScript
  • Fastify (HTTP framework)
  • Prisma (Database ORM)
  • SQLite (no setup required)
  • JWT authentication (jose library)

API Endpoints

Authentication

  • POST /api/auth/register - Register a new user
  • POST /api/auth/login - Login and receive JWT token

Bookmarks

  • POST /api/bookmarks - Create a bookmark
  • GET /api/bookmarks - List bookmarks (supports filtering and pagination)
  • GET /api/bookmarks/:id - Get a single bookmark
  • PATCH /api/bookmarks/:id - Update a bookmark
  • DELETE /api/bookmarks/:id - Delete a bookmark
  • POST /api/bookmarks/:id/archive - Archive a bookmark
  • POST /api/bookmarks/:id/unarchive - Unarchive a bookmark

Tags

  • GET /api/tags - List all tags
  • PATCH /api/tags/:id - Rename a tag
  • DELETE /api/tags/:id - Delete a tag

Running Locally (Optional)

# Install dependencies
npm install
# Create environment file
cp .env.example .env
# Generate Prisma client
npm run db:generate
# Push database schema
npm run db:push
# Start development server
npm run dev

Running Tests (Optional)

# Run tests once
npm test# Run tests in watch mode
npm run test:watch

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Interview assessment for Pocket API

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