json_schema

Returns a schema that matches a JSON value, e.g.:

from pydantic_core import SchemaValidator, core_schema

dict_schema = core_schema.model_fields_schema(
    {
        'field_a': core_schema.model_field(core_schema.str_schema()),
        'field_b': core_schema.model_field(core_schema.bool_schema()),
    },
)

class MyModel:
    __slots__ = (
        '__dict__',
        '__pydantic_fields_set__',
        '__pydantic_extra__',
        '__pydantic_private__',
    )
    field_a: str
    field_b: bool

json_schema = core_schema.json_schema(schema=dict_schema)
schema = core_schema.model_schema(cls=MyModel, schema=json_schema)
v = SchemaValidator(schema)
m = v.validate_python('{"field_a": "hello", "field_b": true}')
assert isinstance(m, MyModel)

def json_schema(
    schema: CoreSchema | None = None,
    ref: str | None = None,
    metadata: dict[str, Any] | None = None,
    serialization: SerSchema | None = None
) - > JsonSchema

Returns a schema that matches a JSON value

Parameters

Name	Type	Description
schema	`CoreSchema	None` = None
ref	`str	None` = None
metadata	`dict[str, Any]	None` = None
serialization	`SerSchema	None` = None

Returns

Type	Description
JsonSchema	A core schema configuration that validates input as a JSON-encoded string or value based on the provided inner schema