• Added websockets interface
• Removed legacy mqtt sink

For websockets you need to connect to the server and then send requests:

{
  "id": "ABC",
  "request": "probe"
}

The id and request are required.

I have added a few other properties to support the response document,format and pretty. format can have a value of xml or json. The default format is xml.

{
  "id": "ABC",
  "request": "probe",
  "format": "json"
}

All the properties except request and id are the same as the properties you get from the swagger interface. Make a request to /swagger from the agent to find all the possible properties.

   http://localhost:5000/swagger

When an interval is given for sample or current, they will publish. A request of cancel will stop a request.

Some examples:

{"id": 1,"request": "probe", "format": "json"}
{"id": 2,"request": "current"}
{"id": 3, "request": "sample", "interval": 1000, "format": "json"}
{"id": 4, "request": "current", "interval": 5000 }
{"id": 3, "request": "cancel"}

There is no additional protocol level header. The results are chunked per the websockets spec as individual messages.

Added support for initial value that sets the data item's observation whenever the device becomes available.

What's Changed

• Preview of 2.5 validation of observation controlled vocabulary.
• Use the Validation = true configuration
• Check quality attribute in the observations

See issue: MTConnect Projects Issue 3159

What's Changed

• Fixed port in url for MQTT service.

Bugs fixed in this release

• Fixed issues with respect to changing UUIDs

Overview

This release is mainly a bug fix release related to some behavior associated with changing uuids, dynamic updates to the device model. One other change is reducing the log level for the file search so the logs are not so noisy on startup.

What's Changed

• Fixed * uuid command handling in agent not as expected by @wsobel in https://github.com/mtconnect/cppagent/pull/426
• Reduced log level for config file search to debug. Issue #417 by @wsobel in https://github.com/mtconnect/cppagent/pull/427
• Issue-423: Crash when editing DataItem in Devices.xml file by @mnoomnoo in https://github.com/mtconnect/cppagent/pull/424

Full Changelog: https://github.com/mtconnect/cppagent/compare/v2.3.0.3...v2.3.0.4

What's Changed

• README.md update by @dwickelhaus in https://github.com/mtconnect/cppagent/pull/416
  • Added deviceModel and uuid documentation for SHDR protocol.
• Fix for issue 420 by @mnoomnoo in https://github.com/mtconnect/cppagent/pull/421
  • AgentConfiguration::monitorThread message reports wrong number of seconds
• Added websockets support to MQTT Adapter by @wsobel in https://github.com/mtconnect/cppagent/pull/422
  • Websockets support added to common MQTT client. May add to MQTT sink as well.
  • Configure using MqttWs = true in agent.cfg for the MQTT adapter.

New Contributors

• @mnoomnoo made their first contribution in https://github.com/mtconnect/cppagent/pull/421

Full Changelog: https://github.com/mtconnect/cppagent/compare/v2.3.0.2...v2.3.0.3

Changes

Minor release that changes . to _ in the agent device topic to support ignition.

New Features

• Version 2.3 new condition Id for Condition observations and associated activations
• Added Sender configuration setting Sender = ... to override header
• README updates for MQTT, SHDR, and other fixes
• Added 2.3 schema files

Contributors:

• @dwickelhaus
• @scottmwyant
• @wsobel
• @shaurabhsingh

Summary

2.2.0.17 is mainly a bug fix release, along with updating urns in stylesheets to match the schema version.

What's Changed

• JSON Parser error handling and randomizing MQTT client id as a solution before connections pooling by @wsobel in https://github.com/mtconnect/cppagent/pull/372
• MQTT last will topic and payload by @wsobel in https://github.com/mtconnect/cppagent/pull/374
• chore: add styles/old to .dockerignore by @ottobolyos in https://github.com/mtconnect/cppagent/pull/376
• Resolve undefined boost::log symbol using ExtractTimestamp transform by @simonyg in https://github.com/mtconnect/cppagent/pull/391
• Empty CDATA xml generation fix by @wsobel in https://github.com/mtconnect/cppagent/pull/401
• stylesheet schema version updated to 2.2 by @robot-ranger in https://github.com/mtconnect/cppagent/pull/403
• Should set device UUID when specified in adapter config by @wsobel in https://github.com/mtconnect/cppagent/pull/405
• Update schema version in stylesheets by @wsobel in https://github.com/mtconnect/cppagent/pull/407