Integrations — slowdep

databases

Database clients

p50: 5ms · p99: 200ms

Wrap pg Pool queries with the postgres preset. Includes Jest examples for timeout and connection pool testing.

p50: 1ms · p99: 20ms

Wrap ioredis with withLatencyAll. Test cache-miss latency and slow-cache timeout behaviour.

p50: 8ms · p99: 250ms

Wrap native MongoDB driver collections. Covers findOne, insertOne, and Mongoose patterns.

p50: 5ms · p99: 200ms

Wrap individual Prisma operations and helper patterns. Explains why withLatencyAll needs special handling with Prisma.

ai apis

AI model APIs

p50: 800ms · p99: 8s

Wrap openai.chat.completions.create. Test timeout and retry logic without burning tokens.

p50: 600ms · p99: 7s

Wrap @anthropic-ai/sdk messages.create. Test Claude latency and streaming UX handling.

external apis

External services

p50: 200ms · p99: 2s

Wrap stripe.paymentIntents and other resource methods. Test checkout UX and payment timeout handling.

p50: 30ms · p99: 500ms

Wrap @aws-sdk/client-s3 send commands. Test upload timeout and multipart retry behaviour.

p50: 80ms · p99: 1s

Wrap native fetch, axios, or any HTTP client. Generic integration for any REST API.

frameworks

Frameworks

App Router · Pages Router

Use slowdep in Server Components, API routes, and getServerSideProps. Test Suspense boundaries and loading states.

don't see your stack?

Any async function works

slowdep wraps any function that returns a Promise. If your library or client isn't listed, wrap its methods directly:

import { withLatency, withLatencyAll } from 'slowdep';

// Wrap a single method
const slowSend = withLatency(client.send.bind(client), {
  p50: 50, p99: 400, errorRate: 0.005,
});

// Wrap all async methods on a client object
const slowClient = withLatencyAll(client, { p50: 50, p99: 400 });