ChatBoq
Enterprise real-time chat inbox with multi-platform filtering, virtualized message lists, infinite scroll, debounced search, normalized responses, and full Stripe subscription billing.
What challenges was this built to solve?
Customer support teams managing thousands of concurrent conversations across web, mobile, and social channels experienced sluggish browser performance, erratic scroll positions upon incoming socket messages, memory leaks from unbounded DOM nodes, and decoupled billing states.
Technical Architecture
Engineered a high-throughput chat inbox using React, Next.js, and TypeScript. Implemented DOM virtualization and windowed message lists to sustain 60fps scrolling under heavy volume. Designed a synchronized state pipeline uniting Zustand for immediate client feedback with React Query for normalized API caching and real-time WebSocket state reconciliation. Built full Stripe billing UI with tiered subscriptions and checkout.
latency
<100ms socket sync
fps
60 FPS virtualization
threads
10k+ messages per inbox
benchmark
TODO: Verified customer conversion lift
Engineering Bottlenecks Overcome
Why These Technologies?
Zustand + React Query vs Redux
Zustand manages ephemeral, client-only UI states (such as active modals, audio nodes, and draft filters) with minimal boilerplate. React Query handles all asynchronous remote cache invalidation and server reconciliation.
Next.js App Router & Server Components
Kept heavy database and serialization logic on the server to minimize client bundle payloads. Client components are strictly restricted to interactive boundaries (audio players, filters, form inputs).
Strict Zod Schemas
Shared type contracts between client form validation and backend route handlers eliminate duplicate logic and guarantee typed safety across runtime boundaries.
Virtualized DOM Lists
Windowing renders only what is visible within the viewport, ensuring continuous 60fps scrolling even when threads reach 10,000+ messages.
Impact & Verification
Achieved sub-100ms real-time delivery latency, eliminated DOM memory bloat with stable 60fps scrolling across 10,000+ message threads, and delivered a friction-free Stripe checkout workflow. [TODO: Production conversion lift and NPS metrics to be benchmarked].