Documentation

Install slowdep and wrap your first async function in under a minute.

Why lognormal latency matters and how slowdep models real dependency behaviour.

All exports, types, and options. The canonical machine-readable reference.

Wrap a single async function. Full parameter docs, TypeScript signature, and examples.

Wrap every async method on a client object at once.

p50/p95/p99 and error rates for postgres, redis, openai, stripe, and 6 more.

Make tests reproducible by seeding Math.random or mocking the wrapper entirely.

Where to wrap, how to test failures, and how to avoid common mistakes.

Conditional wrap patterns — NODE_ENV, env vars, and the maybeSlowDep helper.