Representing logic as data in JSON

Question

For business reasons we need to externalize some conditional logic into external files: preferably JSON.

A simple filter-by scenario could be handled by adding a node a

Answer 1

By the way, IBM DB2 supports logic statements encoded in JSON.

Boolean operations look like a cross between cHao's solution and Amazon CloudFormation:

{"$and":[{"age":5},{"name":"Joe"}]}

Comparison operations look, to me, like transliterated SQL. (Instead of Amazon or Russellg or cHao's movement toward an abstract syntax tree.)

{"age":{"$lt":3}}