Validation Rules

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Operators

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Field Sources

• Headers — Validate HTTP headers like Authorization or Content-Type
• Query Parameters — Validate URL parameters like ?page=1&limit=10
• Request Body — Validate JSON, XML, or form data with dot notation support

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Nested Field Access

user.profile.email      → validates email in nested object
order.items.0.price     → validates first item's price
metadata.source.type    → validates deeply nested values