EventBus¶

Overview¶

Eventbus acts as an interface for sending/receiving messages on mqtt topics.

It supports 3 kinds of mode:

internalMqttMode
externalMqttMode
bothMqttMode

Topic¶

eventbus subscribes to the following topics:

- $hw/events/upload/#
- SYS/dis/upload_records
- SYS/dis/upload_records/+
- $hw/event/node/+/membership/get
- $hw/event/node/+/membership/get/+
- $hw/events/device/+/state/update
- $hw/events/device/+/state/update/+
- $hw/event/device/+/twin/+

Note: topic wildcards

wildcard	Description
#	It must be the last character in the topic, and matches the current tree and all subtrees.
+	It matches exactly one item in the topic tree.

Flow chart¶

1. eventbus sends messages from external client¶

eventbus sends messages from external client

2. eventbus sends response messages to external client¶

eventbus sends response messages to external client