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💪 - 🏑

🎏 🌌 👆 💪 📣 🌖 🔬 & 🗃 ➡ 🛠️ 🔢 🔢 ⏮️ Query, Path & Body, 👆 💪 📣 🔬 & 🗃 🔘 Pydantic 🏷 ⚙️ Pydantic Field.

🗄 Field

🥇, 👆 ✔️ 🗄 ⚫️:

from typing import Union

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: Union[float, None] = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item = Body(embed=True)):
    results = {"item_id": item_id, "item": item}
    return results
🤓 Other versions and variants
from typing import Annotated

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: float | None = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Annotated[Item, Body(embed=True)]):
    results = {"item_id": item_id, "item": item}
    return results
from typing import Annotated, Union

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: Union[float, None] = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Annotated[Item, Body(embed=True)]):
    results = {"item_id": item_id, "item": item}
    return results
from typing import Union

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field
from typing_extensions import Annotated

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: Union[float, None] = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Annotated[Item, Body(embed=True)]):
    results = {"item_id": item_id, "item": item}
    return results

Tip

Prefer to use the Annotated version if possible.

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: float | None = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item = Body(embed=True)):
    results = {"item_id": item_id, "item": item}
    return results

Warning

👀 👈 Field 🗄 🔗 ⚪️➡️ pydantic, 🚫 ⚪️➡️ fastapi 🌐 🎂 (Query, Path, Body, ♒️).

📣 🏷 🔢

👆 💪 ⤴️ ⚙️ Field ⏮️ 🏷 🔢:

from typing import Union

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: Union[float, None] = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item = Body(embed=True)):
    results = {"item_id": item_id, "item": item}
    return results
🤓 Other versions and variants
from typing import Annotated

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: float | None = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Annotated[Item, Body(embed=True)]):
    results = {"item_id": item_id, "item": item}
    return results
from typing import Annotated, Union

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: Union[float, None] = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Annotated[Item, Body(embed=True)]):
    results = {"item_id": item_id, "item": item}
    return results
from typing import Union

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field
from typing_extensions import Annotated

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: Union[float, None] = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Annotated[Item, Body(embed=True)]):
    results = {"item_id": item_id, "item": item}
    return results

Tip

Prefer to use the Annotated version if possible.

from fastapi import Body, FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = Field(
        default=None, title="The description of the item", max_length=300
    )
    price: float = Field(gt=0, description="The price must be greater than zero")
    tax: float | None = None


@app.put("/items/{item_id}")
async def update_item(item_id: int, item: Item = Body(embed=True)):
    results = {"item_id": item_id, "item": item}
    return results

Field 👷 🎏 🌌 Query, Path & Body, ⚫️ ✔️ 🌐 🎏 🔢, ♒️.

📡 ℹ

🤙, Query, Path & 🎏 👆 🔜 👀 ⏭ ✍ 🎚 🏿 ⚠ Param 🎓, ❔ ⚫️ 🏿 Pydantic FieldInfo 🎓.

& Pydantic Field 📨 👐 FieldInfo 👍.

Body 📨 🎚 🏿 FieldInfo 🔗. & 📤 🎏 👆 🔜 👀 ⏪ 👈 🏿 Body 🎓.

💭 👈 🕐❔ 👆 🗄 Query, Path, & 🎏 ⚪️➡️ fastapi, 👈 🤙 🔢 👈 📨 🎁 🎓.

Tip

👀 ❔ 🔠 🏷 🔢 ⏮️ 🆎, 🔢 💲 & Field ✔️ 🎏 📊 ➡ 🛠️ 🔢 🔢, ⏮️ Field ↩️ Path, Query & Body.

🚮 ➕ ℹ

👆 💪 📣 ➕ ℹ Field, Query, Body, ♒️. & ⚫️ 🔜 🔌 🏗 🎻 🔗.

👆 🔜 💡 🌅 🔃 ❎ ➕ ℹ ⏪ 🩺, 🕐❔ 🏫 📣 🖼.

Warning

➕ 🔑 🚶‍♀️ Field 🔜 🎁 📉 🗄 🔗 👆 🈸. 👫 🔑 5️⃣📆 🚫 🎯 🍕 🗄 🔧, 🗄 🧰, 🖼 🗄 💳, 5️⃣📆 🚫 👷 ⏮️ 👆 🏗 🔗.

🌃

👆 💪 ⚙️ Pydantic Field 📣 ➕ 🔬 & 🗃 🏷 🔢.

👆 💪 ⚙️ ➕ 🇨🇻 ❌ 🚶‍♀️ 🌖 🎻 🔗 🗃.