assemblyai-reference-architecture

# AssemblyAI Reference Architecture ## Overview Production-ready architecture for AssemblyAI-powered transcription services with layered design, webhook-driven processing, and LeMUR analysis pipelines. ## Prerequisites - Understanding of layered architecture - `assemblyai` npm package - TypeScript project setup - Database for transcript storage ## Project Structure ``` my-transcription-service/ ├── src/ │ ├── assemblyai/ │ │ ├── client.ts # Singleton client │ │ ├── transcription.ts # Transcription service │ │ ├── streaming.ts # Streaming service │ │ ├── lemur.ts # LeMUR analysis service │ │ └── types.ts # Domain types │ ├── api/ │ │ ├── transcribe.ts # POST /api/transcribe │ │ ├── transcripts.ts # GET /api/transcripts/:id │ │ ├── streaming-token.ts # GET /api/streaming-token │ │ └── webhooks/ │ │ └── assemblyai.ts # POST /webhooks/assemblyai │ ├── services/ │ │ ├── audio-processor.ts # Audio validation & preprocessing │ │ └── transcript-store.ts # Database storage │ ├── jobs/ │ │ └── batch-transcriber.ts # Background batch processing │ └── config.ts ├── tests/ │ ├── unit/ │ │ ├── transcription.test.ts │ │ └── lemur.test.ts │ └── integration/ │ └── assemblyai.test.ts └── package.json ``` ## Architecture Layers ``` ┌──────────────────────────────────────────────────────┐ │ API Lay...