Interface ConstraintHandler

constraint.go:70–78

ConstraintHandler is the interface that all constraints must implement. Built-in and custom constraints are treated uniformly through this interface.

// ConstraintHandler is the interface that all constraints must implement.
// Built-in and custom constraints are treated uniformly through this interface.
type ConstraintHandler interface {
	// Name returns the constraint identifier used in route patterns (e.g. "int", "minLen", "regex").
	Name() string

	// Execute validates a request parameter value against the constraint.
	// param is the request parameter value to check.
	// data contains the pre-typed constraint data produced by Analyze() at registration time.
	Execute(param string, data []any) bool
}

// ConstraintAnalyzer is an optional interface that constraints can implement
// to preprocess data at route registration time. The returned values are stored