You will get a real-time GraphQL API with live dashboard
Project details
You'll get a production-ready GraphQL API with real-time capabilities, built with modern best practices.
I build full-stack GraphQL systems with end-to-end type safety — from schema definition to frontend queries. My APIs are designed for performance with DataLoaders (N+1 prevention), Redis caching, and rate limiting.
What I deliver:
• GraphQL API with Yoga/Apollo, type-safe codegen, and JWT authentication
• WebSocket subscriptions for real-time data updates
• Redis-backed caching, rate limiting, and session management
• Interactive dashboard with live data visualization
• Deployment-ready monorepo with Docker support
Tech stack: GraphQL Yoga, Apollo Client, Next.js, TypeScript, Redis, PostgreSQL, WebSocket
Recent work:
• Built a real-time Kanban board with drag-and-drop, live presence, and 5-second undo
• Implemented GraphQL subscriptions with custom zero-dependency query depth limiting
• Designed JWT rotation with Redis-backed token storage
I build full-stack GraphQL systems with end-to-end type safety — from schema definition to frontend queries. My APIs are designed for performance with DataLoaders (N+1 prevention), Redis caching, and rate limiting.
What I deliver:
• GraphQL API with Yoga/Apollo, type-safe codegen, and JWT authentication
• WebSocket subscriptions for real-time data updates
• Redis-backed caching, rate limiting, and session management
• Interactive dashboard with live data visualization
• Deployment-ready monorepo with Docker support
Tech stack: GraphQL Yoga, Apollo Client, Next.js, TypeScript, Redis, PostgreSQL, WebSocket
Recent work:
• Built a real-time Kanban board with drag-and-drop, live presence, and 5-second undo
• Implemented GraphQL subscriptions with custom zero-dependency query depth limiting
• Designed JWT rotation with Redis-backed token storage
Programming Languages
JavaScript, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$250
|
Standard
$800
|
Advanced
$2,500
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 30 days |
Number of Revisions | 2 | 3 | Unlimited |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
About Chih-Cheng
AI Full-Stack Developer | RAG Agents, Next.js SaaS | 20K+ User App
Chiayi City, Taiwan - 8:38 am local time
What sets me apart:
→ Production AI Agent Platform: Built a multi-tenant AI customer support SaaS where AI agents autonomously use 4 custom tools — order lookup, inventory check, support ticket creation, and knowledge base search. Features a RAG pipeline with pgvector embeddings, Stripe checkout with webhook billing, and an embeddable chat widget deployable on any website via a single script tag. Built with Next.js 16 and Vercel AI SDK v6.
→ RAG Pipeline Engineering: Designed and shipped a complete Retrieval-Augmented Generation system with three-provider LLM switching (Gemini, OpenAI, Claude), a document processing pipeline (PDF/TXT/MD upload, intelligent chunking, embedding, pgvector similarity search, source-cited answers), and SSE token streaming.
→ 20K+ Real Users at $0 Cost: My ChronoStory game data platform serves 20,000+ active users with 3.9M+ data interactions and 26-minute average sessions. A 4-layer caching strategy (localStorage + SWR + ISR + Cloudflare R2 CDN) reduced monthly hosting from $65 to $0 while generating steady ad revenue.
→ Enterprise Full-Stack Architecture: Built an 84K+ LOC e-commerce platform on a Turborepo monorepo — Next.js 15 storefront, Vite 7 admin dashboard, and NestJS 11 backend API — with ECPay payment integration and a 4-tier membership system.
→ Real-Time Collaboration: Built a Kanban board with GraphQL subscriptions, WebSocket-driven live presence, optimistic drag-and-drop with 5s undo, and Redis-backed JWT rotation. Includes DataLoaders for N+1 prevention and a BullMQ email queue.
How I work:
• Clear communication — plain-English progress updates you can act on, no jargon walls
• Production mindset — type safety, tests, and deployment-ready configuration are part of every delivery, not extras
• Honest scoping — if there is a simpler or cheaper way to reach your goal, I will tell you before we start
Ready to build? Send me a message with a short description of what you need, and I will reply with a concrete plan, timeline, and fixed quote within 24 hours.
Steps for completing your project
After purchasing the project, send requirements so Chih-Cheng can start the project.
Delivery time starts when Chih-Cheng receives requirements from you.
Chih-Cheng works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Schema Design
Define GraphQL schema, data models, and API architecture. Align on real-time requirements and tech stack.
API Development & Real-Time Features
Build GraphQL resolvers, WebSocket subscriptions, Redis caching, JWT auth, and live dashboard UI.