NATS

Streams Commands

Create and manage JetStream streams for persistent messaging. Configure retention policies, replication, storage limits, and subject filtering for durable message storage.

8 commands

Pro Tips

Create a stream: 'nats stream add ORDERS --subjects "orders.>" --retention limits --max-msgs 100000'.

View stream info: 'nats stream info ORDERS' shows messages, bytes, consumers, and config.

Purge old messages: 'nats stream purge ORDERS --keep 1000' keeps only the latest 1000 messages.

Common Mistakes

Deleting a stream removes all messages permanently. Consider purging instead for cleanup.

Setting max-bytes too low causes older messages to be deleted. Monitor stream capacity to prevent data loss.

Commands

Create stream

$ nats stream add ORDERS --subjects 'orders.*' --storage file

Create persistent stream with file storage.

Create stream (interactive)

$ nats stream add

Create stream with interactive prompts.

List streams

$ nats stream ls

List all streams.

Stream info

$ nats stream info ORDERS

View stream configuration and state.

View messages

$ nats stream view ORDERS

Browse messages in stream.

Purge stream

$ nats stream purge ORDERS

Remove all messages without deleting stream.

Delete stream

$ nats stream rm ORDERS -f

Delete stream (force, no confirmation).

Stream report

$ nats stream report

Generate report of all streams.