Flexible Sync

Flexible Sync lets clients subscribe to queries instead of opening one partition file.

In Barq’s current server, rules are passed as CLI flags.

Enable Flexible Sync

barq-server-dbg \
  --root-dir ./barq-sync-data \
  --jwt-public-key ./public.pem \
  --enable-flx

Owner Rule

--flx-owner-rule Order:owner_id

This allows a user to read and write rows where owner_id equals the token identity.

Public Read-only Rule

--flx-public-readonly-rule Catalog

This allows all users to read Catalog. Only admin can write it.

Example

The flexible sync end-to-end example runs with:

--enable-flx --flx-owner-rule Order:owner_id --flx-public-readonly-rule Catalog