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feat(sink): add NATS sink #24

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Merged
psteinroe merged 1 commit into from
Jan 13, 2026
Merged

feat(sink): add NATS sink #24

psteinroe merged 1 commit into from
Jan 13, 2026

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@psteinroe psteinroe commented Jan 7, 2026 •
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Summary

  • Add NatsSink that publishes events to NATS subjects
  • Sends event.payload as JSON message
  • Supports dynamic subject routing via event metadata

Configuration

sink:
  type: nats
  url: nats://localhost:4222
  subject: events  # optional default subject

Routing

The target subject is resolved from:

  1. topic field in event metadata (from subscription's metadata or metadata_extensions)
  2. Fallback to subject in config
-- Dynamic subject from table name
metadata_extensions = '[{"json_path": "topic", "expression": "''events.'' || tg_table_name"}]'

@psteinroe
feat(sink): add NATS sink for pub/sub messaging
c94ecdf 
Add a NATS sink that publishes events to NATS subjects.

Features:
- Configurable subject prefix
- Dynamic subject routing via metadata
- Single-pass concurrent publishing for efficiency
- Support for NATS server authentication
@psteinroe psteinroe merged commit abf150c into main Jan 13, 2026
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@psteinroe