JSON Schema Support

[dominiklohmann]

JSON schema is a common specification to define constraints on JSON data, especially when it occurs in a more structured form. For example, Suricata ships with a detailed schema for EVE. We would like to make use of existing JSON Schema specifications by converting them into a module

Definition of Done

Beta Give feedback

1. Agree on how we want to use JSON Schema for parsing
2. Agree on how we want to use JSON Schema for validation
3. Implement the agreed upon changes

[mavam]

The discussed validate operator might be part of this effort.