Summary:
Push webhook events to redis queue with key based on docId.
Remove events from redis after sending using LTRIM.
Put failed events back on the end of the queue under normal circumstances.
When the event queue gets too long:
- Wait until it gets consumed before continuing.
- Drop failed events (i.e. don't put them back on the end of the queue)
- Limit webhook retries to 5
Test Plan: Tested that interactions with redis are as expected using redis MONITOR command.
Reviewers: paulfitz
Reviewed By: paulfitz
Differential Revision: https://phab.getgrist.com/D3100
Summary: This moves enough server material into core to run a home server. The data engine is not yet incorporated (though in manual testing it works when ported).
Test Plan: existing tests pass
Reviewers: dsagal
Reviewed By: dsagal
Differential Revision: https://phab.getgrist.com/D2552
