"""Request helper methods."""

from flask import abort, request
from marshmallow import ValidationError


def get_optional_numeric_list_from_params():
    """Get ids from request params and validate them."""
    optional_params = request.json
    if not optional_params:
        return
    return [int(param) for param in optional_params]


def validate_payload(payload, schema):
    """Validate request payload."""
    try:
        return schema().load(payload)
    except ValidationError as err:
        abort(
            description=err.messages,
            code=400,
        )