lucidchart-reference-architecture

# Lucidchart Reference Architecture ## Overview Design a version-controlled integration layer for the Lucidchart diagramming platform. Document versioning is the primary driver, so every shape mutation is tracked for diff, rollback, and branch operations while an async export pipeline renders diagrams without blocking collaboration. ## Instructions 1. Provision the prerequisites below and register a Lucidchart OAuth2 application. 2. Deploy the document sync service to reconcile local snapshots with Lucidchart state. 3. Start the collaboration event consumer to capture shape deltas in real time. 4. Configure the export worker pool with deduplication via Redis SETNX. 5. Tune the sync interval and version retention policy for your document volume. ## Prerequisites - Node.js 18+, TypeScript 5, PostgreSQL 15, Redis 7, RabbitMQ or SQS - Lucidchart OAuth2 credentials with `document:read`, `document:write`, `export` scopes ## Architecture Diagram ``` Client --> API Gateway --> DocumentSyncService --> Lucidchart API | +--------------+--------------+ v v v Version DB Collab Event Export Worker (snapshots) Consumer (PNG/SVG/PDF) ``` ## Service Layer ```typescript class DocumentSyncService { constructor( private api: LucidchartApiClient, private versions: VersionStore, private events: EventPublisher ) {} async syncDocument(doc...