Azure Event Grid MQTT Broker

azure Pub/Sub topicazure-event-grid-mqtt

MQTT v3.1.1 and v5 pub-sub broker in an Event Grid namespace, with routing of MQTT messages to Azure services.

Provider: azure
Kind: Pub/Sub topic
Category: Messaging
Official docs: https://learn.microsoft.com/en-us/azure/event-grid/mqtt-overview

Properties · 5 set by this component

property	type	values	required	kind default	this component
clientAuthentication · component property	enum	x509 \| entra-id \| oauth-jwt \| webhook	no	x509	inherited
delivery	enum	at-most-once \| at-least-once \| exactly-once	yes	—	▸ at-least-once
managed	boolean	—	no	false	▸ true
mqttVersion · component property	enum	v3-1-1 \| v5	no	v5	inherited
ordering	enum	none \| per-key	no	none	▸ none
replay	boolean	—	no	false	▸ false
retainedMessages · component property	boolean	—	no	true	inherited
routingToTopic · component property	boolean	—	no	false	inherited
sharedSubscriptions · component property	boolean	—	no	false	inherited
topicPerEventType · advanced	boolean	—	no	true	▸ false

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: "event-grid-mqtt", component: "azure-event-grid-mqtt" }

Other Pub/Sub topic products · 12

EventBridgealibaba-eventbridgealibabacloudpubsub-topic Amazon EventBridgeaws-eventbridgeawspubsub-topic Amazon SNSsnsawspubsub-topic Azure Event Gridazure-event-gridazurepubsub-topic Eclipse Mosquittomosquittopubsub-topic MQTT brokermqtt-brokerpubsub-topic NanoMQnanomqpubsub-topic Generic Pub/Sub topicpubsub-topicpubsub-topic Redis Pub/Subredis-pubsubpubsub-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# Event Grid MQTT broker (namespace): MQTT v3.1.1 / v5 pub-sub over topic filters, QoS 0 and 1 only
3# (QoS 2 is not supported), retained messages hold the last value but there is no message replay.
4# Facts from "MQTT (PubSub) Broker - Azure Event Grid".
5schemaVersion: "1"
6type: "component"
7id: "azure-event-grid-mqtt"
8kind: "pubsub-topic"
9provider: "azure"
10docs: "https://learn.microsoft.com/en-us/azure/event-grid/mqtt-overview"
11defaults:
12  managed: true
13  delivery: "at-least-once"
14  ordering: "none"
15  replay: false
16  topicPerEventType: false
17properties:
18  mqttVersion:
19    type: "enum"
20    values: ["v3-1-1", "v5"]
21    default: "v5"
22  retainedMessages:
23    type: "boolean"
24    default: true
25  sharedSubscriptions:
26    type: "boolean"
27    default: false
28  clientAuthentication:
29    type: "enum"
30    values: ["x509", "entra-id", "oauth-jwt", "webhook"]
31    default: "x509"
32  routingToTopic:
33    type: "boolean"
34    default: false

The same page as markdown, for an agent: /catalogue/components/azure-event-grid-mqtt.md