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* 📝 Add docs recommending Union over Optional * 📝 Update docs recommending Union over Optional * 📝 Update source examples for docs, recommend Union over Optional * 📝 Update highlighted lines with updated source examples * 📝 Update highlighted lines in Markdown with recent code changes * 📝 Update docs, use Union instead of Optional * ♻️ Update source examples to recommend Union over Optional * 🎨 Update highlighted code in Markdown after moving from Optional to Union
31 lines
628 B
Python
31 lines
628 B
Python
from typing import Union
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from fastapi import FastAPI
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from fastapi.responses import FileResponse
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from pydantic import BaseModel
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class Item(BaseModel):
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id: str
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value: str
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app = FastAPI()
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@app.get(
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"/items/{item_id}",
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response_model=Item,
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responses={
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200: {
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"content": {"image/png": {}},
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"description": "Return the JSON item or an image.",
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}
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},
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)
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async def read_item(item_id: str, img: Union[bool, None] = None):
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if img:
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return FileResponse("image.png", media_type="image/png")
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else:
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return {"id": "foo", "value": "there goes my hero"}
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