What is JSON Schema?
Blog post from Postman
JSON Schema is a declarative language that standardizes the description and validation of JSON data, ensuring consistency and integrity across applications by defining content, structure, data types, and constraints. It addresses JSON's limitations, such as ambiguity, lack of documentation, and absence of standardized validation mechanisms, by providing a blueprint that describes the expected structure and constraints, thus reducing assumptions and enhancing predictability. JSON Schema is widely used for API data validation, configuration validation, dynamic data and form generation, and data transformation processes, offering benefits such as improved data quality, robust validation, and serving as a data contract and documentation tool. The Postman API Platform enhances the use of JSON Schema by offering built-in support for schema validation, enabling users to leverage API specifications like OpenAPI and AsyncAPI, generate collections based on API schemas, and ensure collections remain consistent with their API definitions through automatic validation.
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