deepgram-rate-limits

# Deepgram Rate Limits ## Overview Implement rate limiting, exponential backoff, and circuit breaker patterns for Deepgram API. Deepgram limits by **concurrent connections** (not requests per second). Understanding this model is key to building reliable integrations. ## Deepgram Rate Limit Model Deepgram uses **concurrency-based** limits, not traditional requests-per-minute: | Plan | Concurrent Requests (STT) | Concurrent Connections (Live) | Concurrent Requests (TTS) | |------|---------------------------|-------------------------------|---------------------------| | Pay As You Go | 100 | 100 | 100 | | Growth | 200 | 200 | 200 | | Enterprise | Custom | Custom | Custom | When you exceed your concurrency limit, Deepgram returns `429 Too Many Requests`. **Key insight:** You can send unlimited total requests — just not more than your concurrency limit *simultaneously*. ## Instructions ### Step 1: Concurrency-Aware Queue ```typescript import pLimit from 'p-limit'; import { createClient } from '@deepgram/sdk'; class DeepgramRateLimiter { private limit: ReturnType<typeof pLimit>; private client: ReturnType<typeof createClient>; private stats = { total: 0, active: 0, queued: 0, errors: 0 }; constructor(apiKey: string, maxConcurrent = 50) { // Stay well under plan limit (e.g., 50 of 100 allowed) this.limit = pLimit(maxConcurrent); this.client = createClient(apiKey); } async transcribe(source: { url: string }, options: Record<string, any>) { this...