Validation

One validation pipeline for HTTP, GraphQL, and RPC, covering rules, errors, and custom decorators.

• Validate Input

  Attach rules to input classes and let the boundary reject bad data, identically for HTTP, GraphQL, and RPC.

• Validation Rules

  The built-in rule catalog: type checks, ranges, formats, and array-level rules.

• Custom Rules

  Author your own validation decorators with registerRule, the same builder the built-ins use.