This is the initial release of Eclipse Hono with a strict focus on providing functionality for devices to publish Telemetry data and Events for consumption by applications connected to Hono.
Devices can publish data to Hono using MQTT and/or HTTP. Eclipse Kura gateways can publish data to Hono using Kura's standard MqttDataTransport. The arbitrary transport protocols for interacting with devices are implemented by Protocol Adapters. Hono comes with an MQTT, a HTTP and a Kura Protocol Adapter out of the box. Users can extend the range of supported transport protocols by implementing a custom Protocol Adapter and integrating it with the Hono back end services.
When a device connects to a protocol adapter, Hono verifies the device's identity by means of username/password credentials thus establishing the source of the data being published. Consuming applications can then be sure that the data they receive really originates from the indicated device.
The APIs between the protocol adapters and Hono as well as the consuming solutions and Hono are defined in AMQP 1.0.