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docs_src/body_multiple_params/tutorial003_an_py310.py

from typing import Annotated

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


class User(BaseModel):
    username: str
    full_name: str | None = None


@app.put("/items/{item_id}")
async def update_item(

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Sat Mar 18 12:29:59 GMT 2023

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github.com/tiangolo/fastapi

docs_src/schema_extra_example/tutorial003_an_py39.py

from typing import Annotated, Union

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


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

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Fri Jun 30 18:25:16 GMT 2023

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github.com/tiangolo/fastapi

docs_src/request_files/tutorial002_an_py39.py


@app.get("/")
async def main():
    content = """
<body>
<form action="/files/" enctype="multipart/form-data" method="post">
<input name="files" type="file" multiple>
<input type="submit">
</form>
<form action="/uploadfiles/" enctype="multipart/form-data" method="post">
<input name="files" type="file" multiple>
<input type="submit">
</form>
</body>
    """

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Sat Mar 18 12:29:59 GMT 2023

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github.com/tiangolo/fastapi

docs_src/body_fields/tutorial001_py310.py

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}")

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Fri May 13 23:38:22 GMT 2022

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github.com/tiangolo/fastapi

tests/test_forms_single_model.py

        "detail": [
            {
                "type": "missing",
                "loc": ["body", "username"],
                "msg": "Field required",
                "input": {"tags": ["foo", "bar"], "with": "nothing"},
            },
            {
                "type": "missing",
                "loc": ["body", "lastname"],
                "msg": "Field required",

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Sat Dec 27 18:19:10 GMT 2025

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github.com/tiangolo/fastapi

docs_src/body_multiple_params/tutorial004_py310.py

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


class User(BaseModel):
    username: str
    full_name: str | None = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Item,
    user: User,

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Fri Mar 10 18:49:18 GMT 2023

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github.com/tiangolo/fastapi

docs/pt/docs/tutorial/handling-errors.md

///

### Use o body do `RequestValidationError` { #use-the-requestvalidationerror-body }

O `RequestValidationError` contém o `body` que ele recebeu de dados inválidos.

Você pode utilizá-lo enquanto desenvolve seu app para registrar o *body* e debugá-lo, e assim retorná-lo ao usuário, etc.

{* ../../docs_src/handling_errors/tutorial005_py39.py hl[14] *}

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

docs/es/docs/tutorial/handling-errors.md

///

### Usar el body de `RequestValidationError` { #use-the-requestvalidationerror-body }

El `RequestValidationError` contiene el `body` que recibió con datos inválidos.

Podrías usarlo mientras desarrollas tu aplicación para registrar el body y depurarlo, devolverlo al usuario, etc.

{* ../../docs_src/handling_errors/tutorial005_py39.py hl[14] *}

Created: Sun Dec 28 07:19:09 GMT 2025

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github.com/tiangolo/fastapi

docs_src/schema_extra_example/tutorial004_an_py39.py

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,
    item: Annotated[
        Item,
        Body(
            examples=[
                {

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Sat Jul 01 16:43:29 GMT 2023

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github.com/tiangolo/fastapi

docs/tr/docs/tutorial/request-forms.md

`Form` sınıfıyla tanımlama yaparken `Body`, `Query`, `Path` ve `Cookie` sınıflarında kullandığınız aynı validasyon, örnekler, isimlendirme (örneğin `username` yerine `user-name` kullanımı) ve daha fazla konfigurasyonu kullanabilirsiniz.

/// info | Bilgi

`Form` doğrudan `Body` sınıfını miras alan bir sınıftır.

///

/// tip | İpucu

Created: Sun Dec 28 07:19:09 GMT 2025

- Last Modified: Mon Nov 18 02:25:44 GMT 2024

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