Redmine

Hello,

I am working on a custom workflow script in Redmine and need assistance with reading and writing the value of a custom field for an issue. I want to manipulate the custom field's value during certain transitions in my workflow.

Specifically, I am looking to achieve the following:

Reading a custom field value - How can I access the value of a custom field for an issue within a custom workflow script?
Writing to a custom field - How can I update or modify the value of a custom field within the script?
Any guidance on how to interact with custom fields (both reading and writing) would be greatly appreciated. I’m particularly interested in understanding the correct syntax, methods, or Redmine API calls needed for this task.

Thanks in advance!