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début refacto + datetimerange + auth
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Oct 7, 2024
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from fastapi import Request | ||
from pydantic import BaseModel, ConfigDict, Field,conint | ||
from typing import Generic,TypeVar, List | ||
from typing_extensions import Annotated, Literal, Optional | ||
from datetime import datetime, timedelta | ||
from enum import Enum | ||
from pydantic.generics import GenericModel | ||
from fastapi.security import APIKeyHeader | ||
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## Reference for pagination design | ||
## https://jayhawk24.hashnode.dev/how-to-implement-pagination-in-fastapi-feat-sqlalchemy | ||
X_API_KEY_HEADER=APIKeyHeader(name="x-key") | ||
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class DatetimeRangeRequest(BaseModel): | ||
start_at: datetime = datetime.now()-timedelta(days=7) | ||
end_at: datetime = datetime.now() | ||
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class OrderByEnum(str, Enum): | ||
ascending = "ASC" | ||
descending = "DESC" | ||
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class OrderByRequest(BaseModel): | ||
order: OrderByEnum = OrderByEnum.ascending | ||
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class PaginatedRequest(BaseModel): | ||
offset: int|None = 0 | ||
limit: int|None = 100 | ||
order_by: OrderByRequest = OrderByEnum.ascending | ||
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class PageParams(BaseModel): | ||
""" Request query params for paginated API. """ | ||
offset: conint(ge=0) = 0 | ||
limit: conint(ge=1, le=1000) = 100 | ||
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T = TypeVar("T") | ||
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class PagedResponseSchema(GenericModel,Generic[T]): | ||
total: int | ||
limit: int | ||
offset: int | ||
next: str|None | ||
previous: str|None | ||
results: List[T] | ||
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def paginate(request: Request, page_params: PageParams, query, ResponseSchema: BaseModel) -> PagedResponseSchema[T]: | ||
"""Paginate the query.""" | ||
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print(f"{request.url.scheme}://{request.client}/{request.url.path}") | ||
paginated_query = query.offset((page_params.offset) * page_params.limit).limit(page_params.limit).all() | ||
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return PagedResponseSchema( | ||
total=query.count(), | ||
offset=page_params.offset, | ||
limit=page_params.limit, | ||
next="", | ||
previous="", | ||
results=[ResponseSchema.from_orm(item) for item in paginated_query], | ||
) |
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