Advanced Usage

Tools for complex data flows and customized error handling:

• Dicts, Streams, & Execution: Validate raw dictionaries, handle PATCH updates, validate streams lazily, and execute standalone constraints.
• Cross-Field Validation: Implement rules that depend on multiple fields simultaneously.
• Logical Composability: Combine rules using AnyOf, AllOf, and Not.
• Custom Constraints & Errors: Override default error messages and JSON codes, or build custom constraints.