Durable sleep

Resonate Python SDK

This example application showcases the Context.sleep() API that enables a function to reliably sleep for days, weeks, or even years if needed.

Problem

A business process may need to sleep for a period of time that is much longer than the expected lifetime of a process.

In other words, a process is likely to crash the longer it is alive, and if a business process needs to suspend—or "sleep"—for days, weeks, or even years, developers are often forced... to use cron jobs as a means to reawaken long sleeping processes.

This leads to complexity that is difficult to reason about, test, and trust.

Solution

Resonate enables developers to handle that sleep directly in their workflows, reducing the complexity of the implementation while also knowing that it can survive process crashes.

How to run this example

Run a Resonate Server:

brew install resonatehq/tap/resonate
resonate serve

If you don't have brew, try one of these other installation options: https://docs.resonatehq.io/operate/server-installation

Install dependencies:

uv sync

Run the worker

uv run worker.py

Run the client

uv run client.py