json-schema-codegen 0.0.7

Generate C++ structures from JSON-Schema

JSON-Schema Codegen

This python library consumes JSON-Schema and generates C++ code. It generates structures to hold the values defined in the schema, restricting the values according to the schema. Each structure has JSON serialization and de-serialization methods.

Supported Schema Features

A C++ class is generated for each schema node according to the schema's type property. Schemas without a type property, with the exception of combining operators *Of, are not supported.

• type: string
  • minLength
  • maxLength
  • pattern
• type: string with enum
• type: integer
  • maximum
  • minimum
  • exclusiveMaximum
  • exclusiveMinimum
  • multipleOf
• type: number
  • maximum
  • minimum
  • exclusiveMaximum
  • exclusiveMinimum
  • multipleOf
• type: boolean
• type: null
• type: array
  • items
  • minItems
  • maxItems
• type: object
  • properties
  • required
• allOf
• anyOf
• oneOf

References

$ref references are supported for array items, object properties, allOf, anyOf, and oneOf. However, the caller must provide a "resolver" class which translates the reference into a class name and namespace.

C++ Requirements

• boost (boost::optional and boost::variant among others)
• rapidjson
• C++11

Python Requirements

• python 3.7
• jinja2
• stringcase

Installation

pip install json-schema-codegen

Usage

See example_usage.py for a more elaborate example.

import jsonschemacodegen.cpp as cpp

simpleResolver = cpp.SimpleResolver()
output_dir = "/tmp"

generator = cpp.GeneratorFromSchema(src_output_dir=output_dir,
    header_output_dir=output_dir, 
    resolver=simpleResolver,
    namespace=[],
    src_usings=[])

sampleSchema = {"type": "string"}

generator.Generate(sampleSchema, 'Example', 'example')

License

GPLv2