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parse string from a variable in automation

Ste404

Hi there,

I am putting an automation in place that if the approver name is deleted from the field automation writes it back.

I am capturing the previous value of the approvers field using this

The result gets stored in a variable.

The problem is the ID that is being stored is an object so it has [ ] around it.

I saw there is a .remove that can be used to remove a string from a field but not sure how to apply it to this automation.

I had this

{{PreviousValue.remove("[")}} just to see if it would be removed as a log event but it spits out an error stating invalid JSON.

Maybe I am going about this incorrectly so would love to understand how this should be put together.

The ultimate goal is to edit the issue and update the approver field with the stored variable.

Accepted answers

Mark Segall

Hi @Ste404 and welcome to the community!

In this type of case, I typically capture the JSON as is in the variable and then create a second variable that performs the cleanup of the first variable then use the second variable in my subsequent conditions/actions.

All comments

Mark Segall

Hi @Ste404 and welcome to the community!

Ste404

hey @Mark Segall thanks for that, you answer means I was on the right track but I wasn't sure where to put the multiple lines in order to trim the previous variable.

I assumed I need these two lines

but in the 'Smart Value' line in create variable it gets entered as a single line.

I put those two items in side by side but it failed, do I need to wrap them in another set of brackets?

Mark Segall

Your second variable should be against your first variable so it would look something like variable.remove("[") and then your third variable would key off of your second variable.
You may be able to do this with only the second variable with something like this:
1. ```
{{YOURVARIABLE.match("\[(.*?)\]")}}
```

Ste404

ok that fixed the parsing, great info.

This is failing now, but will have a scratch around to see what I have mistyped.

{
"fields": {
"approvers" : [{ "id": "{{FixedPrevious}}" } ]
}
}

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