Resonate setup

[marcoacierno]

What

ToDo

[vercel]

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Project	Deployment	Actions	Updated
pycon	Ready	Preview	Oct 4, 2026 10:25pm UTC

[claude]

Adds Resonate durable-workflow infrastructure: a resonate_worker management command, pycon/resonate_app.py (singleton, start_workflow, database_step, autodiscovery), settings and the resonate-sdk dependency.

Testing

• Only the command's reload/URL branching is tested. start_workflow, database_step and _recycle_connections have no tests. database_step is the riskiest part: it does annotation resolution and thread-sensitive ORM execution, and _recycle_connections skips connections inside an atomic block. A test that runs a decorated sync step against the DB would catch regressions.
• The signal and atexit shutdown paths in _stop_on_shutdown are untested.

Design / error handling

• start_workflow calls asyncio.run, which raises RuntimeError if called from a running event loop (e.g. an async Strawberry resolver or ASGI view). Either document it as sync-only or fall back to async_to_sync/a thread. It also builds, starts and stops a new client on every call, so it is slow for frequent triggers.
• Registering "pycon" in INSTALLED_APPS only to make management commands discoverable is a broad side effect. It affects app-label, template and static discovery for the whole project package. Consider placing the command in an existing app instead (or confirm nothing else is affected).
• on_exit waits up to 5s in an atexit hook. If the loop is blocked in a sync ORM step, stopped is never set and the reloader stalls for the full timeout on every code change. This is acceptable for dev, but worth noting.

[codecov]

Codecov Report

❌ Patch coverage is 42.72727% with 63 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.17%. Comparing base (34b93d4) to head (c525abf).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4794      +/-   ##
==========================================
- Coverage   92.68%   92.17%   -0.52%     
==========================================
  Files         356      358       +2     
  Lines       10569    10679     +110     
  Branches      902      910       +8     
==========================================
+ Hits         9796     9843      +47     
- Misses        662      725      +63     
  Partials      111      111              

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