Redis Pub/Sub

Fire-and-forget channel fan-out inside Redis; disconnected subscribers miss messages.

Provider: default
Kind: Pub/Sub topic
Category: Messaging
Official docs: https://redis.io/docs/latest/develop/interact/pubsub/

Properties · 3 set by this component

property	type	values	required	kind default	this component
cluster · component property	boolean	—	no	false	inherited
delivery	enum	at-most-once \| at-least-once \| exactly-once	yes	—	▸ at-most-once
managed	boolean	—	no	false	inherited
ordering	enum	none \| per-key	no	none	▸ per-key
replay	boolean	—	no	false	▸ false
topicPerEventType · advanced	boolean	—	no	true	inherited

Rules that apply · 1

Every rule whose selector covers this component's kind or its category. Whether a rule fires depends on the design: its properties, its edges and its groups.

Pub/Sub topic where replay is requirederror

pubsub-replay-required

The design declares that consumers must be able to replay history. A fan-out topic that does not retain messages cannot deliver that.

— all of these hold:
— the design requirement `messaging.replay` is true
— the node's `replay` is false

Use it in a design

nodes:
  - { id: "redis-pubsub", component: "redis-pubsub" }

Other Pub/Sub topic products · 12

EventBridgealibaba-eventbridgealibabacloudpubsub-topic Amazon EventBridgeaws-eventbridgeawspubsub-topic Amazon SNSsnsawspubsub-topic Azure Event Gridazure-event-gridazurepubsub-topic Azure Event Grid MQTT Brokerazure-event-grid-mqttazurepubsub-topic Eclipse Mosquittomosquittopubsub-topic MQTT brokermqtt-brokerpubsub-topic NanoMQnanomqpubsub-topic Generic Pub/Sub topicpubsub-topicpubsub-topic Eventarcgoogle-eventarcgcppubsub-topic Google Cloud Pub/Subgoogle-pubsubgcppubsub-topic OCI Eventsoci-eventsocipubsub-topic

Source

1# yaml-language-server: $schema=../../schema/component.schema.json
2# Redis PUBLISH/SUBSCRIBE: fire-and-forget fan-out. Messages sent while a subscriber is disconnected are lost.
3schemaVersion: "1"
4type: "component"
5id: "redis-pubsub"
6kind: "pubsub-topic"
7provider: "default"
8docs: "https://redis.io/docs/latest/develop/interact/pubsub/"
9defaults:
10  delivery: "at-most-once"
11  ordering: "per-key"
12  replay: false
13properties:
14  cluster:
15    type: "boolean"
16    default: false

The same page as markdown, for an agent: /catalogue/components/redis-pubsub.md