JSON Schema
We use JSON schema as the Schema Definition Language as it offers several advantages:
  • Easy to describe the structure and semantics of metadata models with readable documentation that is both human and machine consumable.
  • Common types can be developed once and can be reused as building blocks in other schemas and become the basis of vocabulary development.
  • Models can include structural validation, such as required/optional fields, default values, allowed values, regex that not only serve as automated testing and validation but also as documentation of API contract.
  • A rich set of tools are available that supports JSON schema support for generating code and validation from JSON schema in various languages, reducing the manual boilerplate coding.
  • Supports rich formats to convert schema types into native standard types during code generation, such as URI, date, and time.


  1. 1.
    JSON schema specification version Draft-07 to 2019-099
  2. 2.
    JSON schema 2 POJO tool used for Java code generation from JSON schema
  3. 3.
    Data model code generator for generating python code from JSON schema
Last modified 22h ago
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