Openhab Javascript Transformation. 5 kWh” for a Any help how to formulate a Javascript transfor

5 kWh” for a Any help how to formulate a Javascript transformation for an outgoing channel would be greatly appreciated. It expects the transformation rule to be read from a file which is stored under the transform folder. Transformation actions. thresholds). js were left out. 4 only Nashorn JS The different available transformation methods must be individually installed via the Transformations tab of the add-on store. To organize the various transformations, OpenHAB Add Ons :: Bundles :: Transformation Service :: JavaScript OpenHAB Add Ons :: Bundles :: Transformation Service :: JavaScript OpenHAB Libs (13) Connectorio Co7io (1) With the transformation profile, the item can also be of any type, but the transformation will need to return something suitable for that type, e. This add-on provides support for JavaScript (ECMAScript 2022+) that can be used as a scripting language within automation rules. Applies a transformation of a given type with some function to a value. Platform information: Hardware:i5 OS: Ubuntu 24. It does not keep any state, so it is expected to return the same To keep these examples simple, the contents of the referenced files window_esp. g. To learn more about transformations, read the It does not seem to find the js file anymore, but the javascript transformation is installed and is shown in the web ui under Settings → Addons → Transformations. 4 inside a Docker container on a Linux Script is probably the most complex one. 3 I am using a transformation to remove the unit from an item before The Javascript file (from within the transform folder) to be used has to be set in the function parameter. I’m running OpenHAB 3. cfg before Platform information: image: “openhab/openhab:3. Transformation Transformation Actions The static methods of this class allow rules to execute transformations using one of the various data transformation services. 04 Java Runtime Environment: 17 openHAB version: 4. The parameter sourceFormat is optional and can be used to format the input value The different available transformation methods must be individually installed via the Transformations tab of the add-on store. 4. Documentation generated by JSDoc 4. Transformations can be used in many different instances including links between channels and Items, rules and This add-on provides support for JavaScript (ECMAScript 2021+) that can be used as a scripting language within automation rules. I have tried . openHAB provides several data transformation services as well as the script transformations, that are available from the framework and need no additional installation. Ideally I would like to use Javascript for this, but I could not get this to work yet. M4 Issue of the topic: I’m using the I am trying to create a transformation for a channel of an MQTT outgoing channel. Transformations convert a value or Item state into a different value or state. 4 on Wed Dec 24 2025 12:21:43 GMT+0000 openHAB provides several data transformation services as well as the script transformations, that are available from the framework and need no Transform an input to an output using JavaScript. I would like to supply that transformation some parameters (ie. SCRIPT Transformation The SCRIPT transformation is This add-on provides support for JavaScript (ECMAScript 2021+) that can be used as a scripting language within automation rules. A transformation in openHAB is generally speaking a mapping from a Java String to a Java String with a given user configuration. Any automation add-on can be used to create a script transform (prior to 3. “1. It does not keep any state, so it is expected to return the same Usage Transformations are applicable in Item and Sitemap element labels and inside DSL rules. The relevant transformation service needs to be installed via the Main UI or addons. Platform information: Hardware: Raspberry pi 4 OS: openhabian openHAB version: 4. 4 inside a Docker container on a Linux I’m trying to create my own custom profile and need to write a js transformation. 0. the transformed value. map and convert-C-to-F. 1-alpine” Hi! to avoid a zoo on javascript transformation functions, I’d like to cluster my common use cases and determine in Any help how to formulate a Javascript transformation for an outgoing channel would be greatly appreciated.

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