"Content-Encoding": "gzip",
	}

	// Add form data
	maps.Copy(formData, addFormData)

	// Create the multipart form.
	var buf bytes.Buffer
	w := multipart.NewWriter(&buf)

	// Set the normal formData
	for k, v := range formData {
		w.WriteField(k, v)
	}
	// Set the File formData but don't if we want send an incomplete multipart request
	if !corruptedMultipart {

from fastapi import FastAPI, Form
from pydantic import BaseModel

app = FastAPI()


class FormData(BaseModel):
    username: str
    password: str


@app.post("/login/")
async def login(data: FormData = Form()):

from typing import Annotated

from fastapi import FastAPI, Form
from pydantic import BaseModel

app = FastAPI()


class FormData(BaseModel):
    username: str
    password: str


@app.post("/login/")
async def login(data: Annotated[FormData, Form()]):

from typing import Annotated

from fastapi import FastAPI, Form
from pydantic import BaseModel

app = FastAPI()


class FormData(BaseModel):
    username: str
    password: str
    model_config = {"extra": "forbid"}


@app.post("/login/")
async def login(data: Annotated[FormData, Form()]):

from pydantic import GetJsonSchemaHandler
from starlette.datastructures import URL as URL  # noqa: F401
from starlette.datastructures import Address as Address  # noqa: F401
from starlette.datastructures import FormData as FormData  # noqa: F401
from starlette.datastructures import Headers as Headers  # noqa: F401
from starlette.datastructures import QueryParams as QueryParams  # noqa: F401

from fastapi import FastAPI, Form
from pydantic import BaseModel

app = FastAPI()


class FormData(BaseModel):
    username: str
    password: str
    model_config = {"extra": "forbid"}


@app.post("/login/")
async def login(data: FormData = Form()):

from starlette._exception_handler import wrap_app_handling_exceptions
from starlette._utils import is_async_callable
from starlette.concurrency import iterate_in_threadpool, run_in_threadpool
from starlette.datastructures import FormData
from starlette.exceptions import HTTPException
from starlette.requests import Request
from starlette.responses import JSONResponse, Response, StreamingResponse
from starlette.routing import (
    BaseRoute,
    Match,

from fastapi import FastAPI, Form
from pydantic import BaseModel

app = FastAPI()


class FormData(BaseModel):
    username: str
    password: str
    model_config = {"extra": "forbid"}


@app.post("/login/")
async def login(data: Annotated[FormData, Form()]):
    return data
```

    Bu örnekte, `Item` dataclass'larından oluşan bir listedir.

6. Burada `items` içeren bir dictionary döndürüyoruz; `items` bir dataclass listesi.

    FastAPI, veriyi JSON'a <dfn title="veriyi aktarılabilir bir formata dönüştürme">serileştirme</dfn>yi yine başarır.

7. Burada `response_model`, `Author` dataclass'larından oluşan bir listenin type annotation'ını kullanıyor.