make_pydantic_parser_fn.md

make_pydantic_parser_fn

Source: ds_platform_utils.metaflow.validate_config.make_pydantic_parser_fn

Creates a Metaflow Config(..., parser=...) parser backed by a Pydantic model.

Signature

make_pydantic_parser_fn(
    pydantic_model: type[BaseModel],
) -> Callable[[str], dict]

What it does

• Parses config content as JSON, TOML, or YAML.
• Validates and normalizes with Pydantic.
• Returns a dict with applied defaults from the model.

Parameters

Parameter	Type	Required	Description
pydantic_model	type[BaseModel]	Yes	Pydantic model class used to validate and normalize config content.

Returns: Callable[[str], dict] parser function for Metaflow Config(..., parser=...).

Typical usage

config: MyConfig = Config(
    name="config",
    default="./configs/default.yaml",
    parser=make_pydantic_parser_fn(MyConfig),
)