So I talked with a couple people and here are some options. You can use a snap called the DataValidator that allows some similar options to what JsonSchema provides. Here is an example that uses constraints similar to what you were looking to do.
data-validator-example_2019_01_09.slp (5.8 KB)
The other option is to use some of the XML snaps as those have validation built into them. I guess the data validation is more common with the XML use cases from what we’ve seen. So you could do something like this, which would do the validation in the XML snaps.
thank you @tlikarish for suggesting alternative options.
