Jira JSON with If Else for Assets Fields in Automation (returns invalid if field is empty)

[Rebecca]

Hi,

my JSON returns invalid as soon as one or both Assets custom fields are empty when I run an automation that clones issues from one project to another.

This is what my JSON looks like, when both fields contain objects - it is valid:

{
"fields": {
"customfield_13400": {{issue.customfield_13400.asJsonObjectArray("key")}},
"customfield_11501": {{issue.customfield_11501.asJsonObjectArray("key")}}
},

However, if one or both fields are empty - it returns invalid and the automation fails.

How can I use an "If-else-condition" for the two custom fields in JSON?

... something like this: if custom field is empty - do nothing, else copy the value from the custom field