Difficulty: very easy (1 block)
Easily retrieve current flow ID with using regular expression
1. In Flow Beginning (Block #1) you assign a variable for the flow fiber URI, which contains flow ID
2. In Variable Set (Block #3) you apply regular expression which includes group of digits which are the flow ID, then cast it to number.
That's it! Excluding Flow Beginning and Log blocks - it's just one block!
P.S. Check if it's right... With AFQ!
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