What is JSON Schema?

JSON Schema is a vocabulary that allows you to annotate and validate JSON documents. It provides a contract for JSON data and describes the structure of the data.

Common Schema Properties:

• type - Data type (string, number, integer, boolean, array, object, null)
• properties - Object properties definition
• required - Array of required property names
• items - Schema for array items
• minimum, maximum - Number constraints
• minLength, maxLength - String length constraints
• pattern - Regex pattern for strings
• enum - List of allowed values

Use Cases:

• API request/response validation
• Configuration file validation
• Data quality assurance
• Documentation and contracts
• Code generation from schemas