---

name: instantly-performance-tuning description: | Optimize Instantly API performance with caching, batching, and connection pooling. Use when experiencing slow API responses, implementing caching strategies, or optimizing request throughput for Instantly integrations. Trigger with phrases like "instantly performance", "optimize instantly", "instantly latency", "instantly caching", "instantly slow", "instantly batch". allowed-tools: Read, Write, Edit version: 1.0.0 license: MIT author: Jeremy Longshore jeremy@intentsolutions.io

Instantly Performance Tuning

Overview

Optimize Instantly API performance with caching, batching, and connection pooling.

Prerequisites

• Instantly SDK installed
• Understanding of async patterns
• Redis or in-memory cache available (optional)
• Performance monitoring in place

Latency Benchmarks

Caching Strategy

Response Caching

Copyimport { LRUCache } from 'lru-cache';

const cache = new LRUCache<string, any>({
  max: 1000,
  ttl: 60000, // 1 minute
  updateAgeOnGet: true,
});

async function cachedInstantlyRequest<T>(
  key: string,
  fetcher: () => Promise<T>,
  ttl?: number
): Promise<T> {
  const cached = cache.get(key);
  if (cached) return cached as T;

  const result = await fetcher();
  cache.set(key, result, { ttl });
  return result;
}

Redis Caching (Distributed)

Copyimport Redis from 'ioredis';

const redis = new Redis(process.env.REDIS_URL);

async function cachedWithRedis<T>(
  key: string,
  fetcher: () => Promise<T>,
  ttlSeconds = 60
): Promise<T> {
  const cached = await redis.get(key);
  if (cached) return JSON.parse(cached);

  const result = await fetcher();
  await redis.setex(key, ttlSeconds, JSON.stringify(result));
  return result;
}

Request Batching

Copyimport DataLoader from 'dataloader';

const instantlyLoader = new DataLoader<string, any>(
  async (ids) => {
    // Batch fetch from Instantly
    const results = await instantlyClient.batchGet(ids);
    return ids.map(id => results.find(r => r.id === id) || null);
  },
  {
    maxBatchSize: 100,
    batchScheduleFn: callback => setTimeout(callback, 10),
  }
);

// Usage - automatically batched
const [item1, item2, item3] = await Promise.all([
  instantlyLoader.load('id-1'),
  instantlyLoader.load('id-2'),
  instantlyLoader.load('id-3'),
]);

Connection Optimization

Copyimport { Agent } from 'https';

// Keep-alive connection pooling
const agent = new Agent({
  keepAlive: true,
  maxSockets: 10,
  maxFreeSockets: 5,
  timeout: 30000,
});

const client = new InstantlyClient({
  apiKey: process.env.INSTANTLY_API_KEY!,
  httpAgent: agent,
});

Pagination Optimization

Copyasync function* paginatedInstantlyList<T>(
  fetcher: (cursor?: string) => Promise<{ data: T[]; nextCursor?: string }>
): AsyncGenerator<T> {
  let cursor: string | undefined;

  do {
    const { data, nextCursor } = await fetcher(cursor);
    for (const item of data) {
      yield item;
    }
    cursor = nextCursor;
  } while (cursor);
}

// Usage
for await (const item of paginatedInstantlyList(cursor =>
  instantlyClient.list({ cursor, limit: 100 })
)) {
  await process(item);
}

Performance Monitoring

Copyasync function measuredInstantlyCall<T>(
  operation: string,
  fn: () => Promise<T>
): Promise<T> {
  const start = performance.now();
  try {
    const result = await fn();
    const duration = performance.now() - start;
    console.log({ operation, duration, status: 'success' });
    return result;
  } catch (error) {
    const duration = performance.now() - start;
    console.error({ operation, duration, status: 'error', error });
    throw error;
  }
}

Instructions

Step 1: Establish Baseline

Measure current latency for critical Instantly operations.

Step 2: Implement Caching

Add response caching for frequently accessed data.

Step 3: Enable Batching

Use DataLoader or similar for automatic request batching.

Step 4: Optimize Connections

Configure connection pooling with keep-alive.

Output

• Reduced API latency
• Caching layer implemented
• Request batching enabled
• Connection pooling configured

Error Handling

Examples

Quick Performance Wrapper

Copyconst withPerformance = <T>(name: string, fn: () => Promise<T>) =>
  measuredInstantlyCall(name, () =>
    cachedInstantlyRequest(`cache:${name}`, fn)
  );

Resources

• Instantly Performance Guide
• DataLoader Documentation
• LRU Cache Documentation

Next Steps

For cost optimization, see instantly-cost-tuning.