A list of subjects to consume, supports wildcards. Must be empty when a mirror is configured. May be empty when sources are configured.

A short description of the purpose of this stream

For wildcard streams ensure that for every unique subject this many messages are kept - a per subject retention limit

How many messages may be in a Stream, oldest messages will be removed if the Stream exceeds this size. -1 for unlimited.

Maximum age of any message in the stream, expressed in nanoseconds. 0 for unlimited.

How big the Stream may be, when the combined stream size exceeds this old messages are removed. -1 for unlimited.

The largest message that will be accepted by the Stream. -1 for unlimited.

When a Stream reach its limits either old messages are deleted or new ones are denied

Sets the context of the on a per subject basis. Requires DiscardPolicy#New as the discard policy.

Disables acknowledging messages that are received by the Stream.

The time window to track duplicate messages for, expressed in nanoseconds. 0 for default Set JetStreamPublishOptions#msgID to enable duplicate detection.

List of Stream names to replicate into this Stream

Allows the use of the JsHeaders#RollupHdr header to replace all contents of a stream, or subject in a stream, with a single new message

How many replicas to keep for each message. Min 1, Max 5. Default 1.

Placement directives to consider when placing replicas of this stream, random placement when unset

Restricts the ability to delete messages from a stream via the API. Cannot be changed once set to true

Restricts the ability to purge messages from a stream via the API. Cannot be change once set to true

Allow higher performance, direct access to get individual messages via the $JS.DS.GET API

Allow higher performance, direct access to get individual messages via the $JS.DS.GET API

Rules for republishing messages from a stream with subject mapping onto new subjects for partitioning and more

Metadata field to store additional information about the stream. Note that keys starting with _nats are reserved. This feature only supported on servers 2.10.x and better.

Apply a subject transform to incoming messages before doing anything else. This feature only supported on 2.10.x and better.

Sets the compression level of the stream. This feature is only supported in servers 2.10.x and better.

The consumer limits applied to consumers that don't specify limits for inactive_threshold or max_ack_pending. Note that these limits become an upper bound for all clients.