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20 lines
606 B
20 lines
606 B
"""Pagination utility functions."""
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from typing import Tuple
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from werkzeug.datastructures import MultiDict
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from server import errors
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def get_pagination_params(request_args: MultiDict) -> Tuple[int, int]:
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"""Get page and perPage request parameters."""
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page = request_args.get('page', 1)
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per_page = request_args.get('perPage', 20)
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try:
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return int(page), int(per_page)
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except ValueError:
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raise errors.ClientError(
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' '.join([
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'Invalid pagination parameters:',
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'page={}',
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'perPage={}']).format(page, per_page))
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