157 lines
3.4 KiB
Python
157 lines
3.4 KiB
Python
"""
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CRUD route handlers bound via OpenAPI operationId.
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This module defines OpenAPI-bound operation handlers for a model-based
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CRUD service. Functions in this module are bound to HTTP routes
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exclusively via OpenAPI ``operationId`` values.
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Handlers explicitly control HTTP response status codes to ensure runtime
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behavior matches the OpenAPI contract. Domain models defined using
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Pydantic are used for request and response payloads.
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No routing decorators, path definitions, or implicit framework behavior
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appear in this module. All routing, HTTP methods, and schemas are defined
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in the OpenAPI specification.
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"""
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from fastapi import Response, HTTPException
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from models import ItemCreate
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from data import (
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list_items as _list_items,
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get_item as _get_item,
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create_item as _create_item,
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update_item as _update_item,
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delete_item as _delete_item,
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)
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def list_items() -> list[Item]:
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"""
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List all items.
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Implements the OpenAPI operation identified by
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``operationId: list_items``.
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Returns
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-------
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list[Item]
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A list of item domain objects.
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"""
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return _list_items()
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def get_item(item_id: int) -> Item:
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"""
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Retrieve a single item by ID.
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Implements the OpenAPI operation identified by
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``operationId: get_item``.
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Parameters
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----------
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item_id : int
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Identifier of the item to retrieve.
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Returns
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-------
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Item
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The requested item.
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Raises
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------
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HTTPException
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404 if the item does not exist.
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"""
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try:
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return _get_item(item_id)
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except KeyError:
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raise HTTPException(status_code=404, detail="Item not found")
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def create_item(payload: ItemCreate, response: Response) -> Item:
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"""
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Create a new item.
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Implements the OpenAPI operation identified by
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``operationId: create_item``.
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Parameters
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----------
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payload : ItemCreate
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Request body describing the item to create.
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response : Response
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Response object used to set the HTTP status code.
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Returns
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-------
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Item
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The newly created item.
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"""
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item = _create_item(payload)
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response.status_code = 201
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return item
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def update_item(item_id: int, payload: ItemCreate) -> Item:
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"""
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Update an existing item.
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Implements the OpenAPI operation identified by
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``operationId: update_item``.
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Parameters
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----------
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item_id : int
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Identifier of the item to update.
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payload : ItemCreate
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New item data.
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Returns
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-------
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Item
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The updated item.
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Raises
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------
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HTTPException
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404 if the item does not exist.
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"""
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try:
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return _update_item(item_id, payload)
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except KeyError:
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raise HTTPException(status_code=404, detail="Item not found")
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def delete_item(item_id: int, response: Response) -> None:
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"""
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Delete an existing item.
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Implements the OpenAPI operation identified by
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``operationId: delete_item``.
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Parameters
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----------
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item_id : int
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Identifier of the item to delete.
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response : Response
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Response object used to set the HTTP status code.
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Returns
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-------
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None
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No content.
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Raises
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------
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HTTPException
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404 if the item does not exist.
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"""
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try:
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_delete_item(item_id)
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except KeyError:
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raise HTTPException(status_code=404, detail="Item not found")
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response.status_code = 204
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return None
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