• this is a hidden feature when using the Scala FEEL Engine
• before we add the FEEL support to the documentation, we should add integration tests

AT

• add tests (unit and integration)
• add documentation

Hints:
Until this is part of the codebase, this can be made to work by adding the below in a text file called org.camunda.feel.valuemapper.CustomValueMapper under META-INF/services/:

org.camunda.feel.impl.JavaValueMapper
org.camunda.spin.plugin.impl.feel.integration.SpinValueMapper

This adds two additional SPIs:

• the JavaValueMapper, which allows transforming FEEL types into Java objects
• the SpinValueMapper, which allows transforming Spin objects into FEEL types

For example:

• for a Spring Boot application, the META-INF folder sits under resources
• for a Tomcat distribution, a small maven project such as the attached feel-value-mapper.zip can be built to generate a JAR file, which should be dropped into the Tomcat folder $TOMCAT_HOME/lib. If using our docker image, this can be accomplished using a bind mount (docker volume).