HiveMQ Edge 2024.6 is Released

What’s new in HiveMQ Edge 2024.6

This update brings a new file-input protocol adapter, a couple of bug fixes and UX improvements.

File-Input Adapter

How it works

The brand new file-input protocol adapter is able to read local files from file systems and translate the content into an MQTT payload. Numerous file content-types are support and modeled as MQTT payloads accordingly. To set up a file-input protocol adapter the file path, MQTT destination topic, and content-type is required. The adapter works similar as the other protocol adapters in a polling mode which can be easily configured as well. Features like Offline Buffering or Data Hub are integrated and are fully supported for new file-input adapter.

The file-input adapter supports the content-typeS: text/plain, text/csv, application/json, application/xml, and,
application/octet-stream.

An example config is shown in the screenshot below:

Polling the configured file in a one-second interval the following MQTT payloads are generated.

{
   "timestamp":1722271473101,
   "value":"20385",
   "tagName":"value",
   "contentType":"text/plain"
}{
   "timestamp":1722271474102,
   "value":"24871",
   "tagName":"value",
   "contentType":"text/plain"
}{
   "timestamp":1722271475100,
   "value":"6127",
   "tagName":"value",
   "contentType":"text/plain"
}

How it helps

There are numerous PLCs or software components in the OT world that use files as interfaces with other systems, for example capturing asset information stored in a file to add context to operational data being stored in a database. Moreover, there also exists certain interfaces available for direct access e.g. via file-system access, such as /sys.

Additional Features and Improvements

• Fix adapter discovery API
• Fixed an issue that could allow a QoS 2 message to complete a QoS 1 message flow.
• Clean up logs for stopped protocol adapters

Get Started Today

Get started by running

docker run --name hivemq-edge --pull=always -d -p 1883:1883 -p 8080:8080 hivemq/hivemq-edge

or clone our repository

git clone git@github.com:hivemq/hivemq-edge.git