Edge Agent Changelog

This file represents all changes to the losant-edge-agent since it’s initial release. This project adheres to Semantic Versioning.

1.11.0 - 2019-08-22

Added

Trigger / Device: Connect
Trigger / Device: Disconnect
Trigger / Device: Startup
Logic / Date / Time
Data / GCP: Function

Changed

Changed the default parse method for the Serial trigger to be delimiter instead of byte length.
Add ability to define data bits, stop bits, and parity for the Modbus: Read and Modbus: Write nodes when connecting with serial.
Update to Node.js 10.16.0.
Multiple library dependencies were updated.

Fixed

Fix issue where unit id was improperly ignored for the Modbus: Read and Modbus: Write nodes when connecting with serial.
Fix race condition where agent could crash when workflow debugging was enabled and workflows were triggered immediately on startup.
Fix issue where agent could error when cleaning up stale TensorFlow: Predict models.

1.10.0 - 2019-07-23

Added

Data / Azure: Function
Data / TensorFlow: Predict

Changed

Added support for serial RTU connections for the Modbus: Read node.
Added support for serial RTU connections for the Modbus: Write node.
Added support to get all storage values with the Storage: Get Value node.
Upgraded the underlying libraries for the various OPCUA nodes.
Workflow storage writes now write to disk asynchronously every few seconds and do not block the running workflow.
Deprecated timeSincePath support for the Throttle node.

Fixed

Fix typos in OPCUA node error messages.
Fix issue where the Allen-Bradley Read and Write nodes would behave inconsistently when controller and tag names were the same.
Fix issue where heavy use of the Throttle node would cause errors.

1.9.1 - 2019-06-13

Fixed

Fixed race condition introduced in 1.9.0 that would cause the agent to crash on startup in certain circumstances.

1.9.0 - 2019-06-06

Added

Data / OPC UA: Read
Triggers / OPC UA

Changed

Added support for configuration via a payload path for the Modbus: Read node.
Added support for configuration via a payload path for the Modbus: Write node.
Added support for FC16 writes in the Modbus: Write node.
Added SSL support to the Redis node.
The HTTP node now supports a request body encoding type.
The String node now supports pad.
Update to Node.js 10.15.3.
Multiple library dependencies were updated.

Fixed

Fixed Buffer, Date, and ObjectID type inconsistencies when passing data to and from the Function node.
Fixed issue where multiline statements did not work properly in the SQL node.
Fixed issue with the Postgres Interval data type in results from the SQL node.

1.8.0 - 2019-04-24

Added

Data / AWS S3: Get
Data / AWS S3: Put

Changed

Improved error messages when evaluating expressions with incorrect use of the ! operator.
Improved error messages for the Generate ID node.
The HTTP Node now supports a response body encoding type.

Fixed

Fixed issue where OPCUA nodes errored the workflow instead of adding an error to the payload when the OPCUA call returned an invalid datatype.
Fixed issue where the jsonEncode payload helper behaved incorrectly when used recursively.

1.7.0 - 2019-03-26

Added

Data / Serial Write

Fixed

Fixed issue with OPCUA nodes not correctly reusing the same session across workflow runs.
Fixed issue where workflows allowed invalid program and tag names for the Allen-Bradley nodes.

1.6.1 - 2019-02-28

Fixed

Fixed a permissions issue with the Docker image which caused filesystem permission errors with the OPCUA nodes.

1.6.0 - 2019-02-27

Added

Triggers / Serial
Data / OPC UA: Read
Data / OPC UA: Write
Data / OPC UA: Browse
Logic / CSV: Decode
Logic / CSV: Encode

Fixed

Fixed an issue where non-geographic area codes for USA phone numbers were rejected as invalid in the Twilio node.

1.5.0 - 2019-01-31

Added

Triggers / Redis
Triggers / Virtual Button
Data / SQL

Changed

The HTTP Node now supports making requests with client certificates.
The HTTP Node now supports using a custom CA.
Update to Node.js 10.15.0.
Multiple library dependencies were updated.

Fixed

Fixed an issue where one workflow could monopolize the process and prevent other workflows from running.

1.4.0 - 2018-12-18

Added

Data / Allen-Bradley: Read
Data / Allen-Bradley: Write

1.3.1 - 2018-11-21

Fixed

Fixed an issue where a mix of successful and failing modbus reads in a single Modbus: Read node would not be represented correctly on the payload.
Fixed an issue with the MongoDB where certain connection URIs were incorrectly parsed.

1.3.0 - 2018-11-08

Added

Triggers / File Watch

Changed

The Modbus: Write Node now has an adjustable timeout.
The Modbus: Read Node now can be configured to read values as either signed or unsigned, and it has an adjustable timeout.
Multiple library dependencies were updated.

Fixed

An issue where using the currentDateTime template helper by itself without a format argument would result in a blank string has been fixed.
An issue where the agent would exit without waiting for logs to finish writing has been fixed.
An issue with timers configured by cron in certain timezones would hang has been fixed.

1.2.5 - 2018-10-04

Fixed

The File: Read Node now correctly closes the open file handle afterward in all cases.
When the File: Read Node errors, it no longer overwrites the entire payload with the error message in certain cases.
The Modbus: Write Node now correctly accepts the full range of a 16 bit unsigned integer for writing to a register.

1.2.4 - 2018-09-28

Changed

Change the limit on the number of concurrently running nodes to be applied per running workflow instead of globally across all running workflows.

1.2.3 - 2018-09-27

Added

There are now Alpine based docker images for the Edge Agent.
The typeof handlebars helper has been added.

Changed

The Run Executable Node now supports detaching from the executable.
The Geofence Node now supports drawing custom polygons.
The Array Node now supports concat.
Update to Node.js 8.12.0.

Fixed

The HTTP Node now uses auto for ecdhCurve for SSL connections.

1.2.2 - 2018-08-22

Added

Added a configuration flag to control the queuing of messages while the agent is offline.
Added the new payload helper scaleLinear.
Added the new payload helper currentDateTime.

Changed

Improved Google Big Query and GoogleML Node error handling.
Clarified certain verbose log messages.

1.2.1 - 2018-08-07

Added

Can now choose to have no expiration time for the JWT: Create Node.

Changed

Modbus: Read Node and Modbus: Write Node now default to port 502.
Improved MongoDB Node error handling.
A workflow publishing MQTT messages to an invalid or unauthorized topic will no longer cause the agent to disconnect from the Losant Platform.

Fixed

System clock changes no longer affect the firing of interval timers while the agent is running.
Debug messages with circular references correctly send to the Losant Platform.

1.2.0 - 2018-06-21

Added

Data / ServiceNow Node
Triggers / UDP Trigger
Outputs / UDP Send Node
Edge workflow payloads now have environment variables available under the field agentEnvironment.
Edge workflow payloads now have the field isConnectedToLosant, representing if the agent is currently connected to Losant.

Changed

Easily set authorization headers for requests on the HTTP Node.
Can now set the path for a cookie on the HTTP Response Node.
Improved phone number casting for the Twilio Node.
Update to Node.js 8.11.3.

1.1.1 - 2018-05-21

Changed

Improved startup messages.
The HTTP Node now allows for setting timeouts and capturing network errors.

Fixed

Improved messages for Slack Node errors.
Support circular references in debug messages.

1.1.0 - 2018-03-29

Added

Logic / Generate ID Node
Logic / Hash Node

Changed

Improved error messages
The Validate Payload Node now allows for defining your schema using either a payload path or a JSON template.

Fixed

Modbus: Read Node’s “Length” property now defaults to a value of 1 if left blank.
Modbus: Read and Modbus: Write Nodes will now time out if they fail to connect to Modbus.

1.0.0 - 2018-03-08

Added