linktree-reference-architecture

# Linktree Reference Architecture ## Overview Design a read-optimized integration layer for the Linktree link-in-bio platform. The extreme read-to-write ratio on public profiles drives a two-tier cache with async analytics, keeping the hot path free from downstream blocking. ## Instructions 1. Provision the prerequisites below and configure Linktree API credentials. 2. Deploy the service layer with the cache-aside pattern for profile reads. 3. Wire the webhook ingester to invalidate cache on profile mutations. 4. Start the click event consumer to populate the analytics store. 5. Adjust Redis TTLs and rate-limit buckets to match your traffic profile. ## Prerequisites - Node.js 18+, TypeScript 5, Redis 7, RabbitMQ or SQS, PostgreSQL 15 - Linktree API credentials with `profile:read` and `links:write` scopes ## Architecture Diagram ``` Client --> API Gateway --> LinktreeService --> Linktree API | +--------------+--------------+ v v v Redis Cache Event Queue Analytics DB (profiles) (clicks/views) (aggregates) ``` ## Service Layer ```typescript class LinktreeService { constructor( private api: LinktreeApiClient, private cache: ProfileCache, private events: EventPublisher ) {} async getProfile(username: string): Promise<Profile> { const cached = await this.cache.get(`profile:${username}`); if (cached) return cached; const pro...