Does rule engine support Expression in Value field

[dtiwarATS]

Hi There,

I have a use case where the value field has an expression like this:

{
"fact": "fact1",
"operator": "equal",
"value": "100 - {var1} - {var2} - {var2}"
}

Note:- Var1, Var2, etc are nothing but a fact.

Up to the best of my knowledge, I guess the facts comparison allows to compare only one fact with another but I was curious to know if there is a way to support the above conditions.

Thanks.

[CacheControl]

Hi @dtiwarATS, yes that should be achievable using fact comparison - see example. One approach would be to have a dynamic fact that represents the expression you posted, which would resolve the fact values in code and evaluate the expression.

Additionally, you might also look at using fact params to provide a data structure describing the expression, which could then be parsed by the dynamic fact. This would avoid hard coding each expression within its own fact.