find("*[data-validation]").valAttr("event","keyup change").on("validation",function(b,c){if(!f){f=!0;var g=a(this).closest("form");c&&d(g,this,h)?e(g,"enabled"):e(g,"disabled"),f=!1}}).on("afterValidation",k).on("blur",function(){a(this).valAttr("have-been-blurred",1)}).each(function(){var b=a(this),c=b.attr("data-validation");c.indexOf("checkbox_group")>-1&&b.closest("form").find('input[name="'+b.attr("name")+'"]').each(function(){a(this).on("change",function(){b.validate()})})}),i.find("[data-...

///

## "폼 데이터"란

HTML의 폼들(`<form></form>`)이 서버에 데이터를 전송하는 방식은 대개 데이터에 JSON과는 다른 "특별한" 인코딩을 사용합니다.

**FastAPI**는 JSON 대신 올바른 위치에서 데이터를 읽을 수 있도록 합니다.

/// note | "기술적 세부사항"

폼의 데이터는 파일이 포함되지 않은 경우 일반적으로 "미디어 유형" `application/x-www-form-urlencoded` 을 사용해 인코딩 됩니다.

하지만 파일이 포함된 경우, `multipart/form-data`로 인코딩됩니다. `File`을 사용하였다면, **FastAPI**는 본문의 적합한 부분에서 파일을 가져와야 한다는 것을 인지합니다.

The spec also states that the `username` and `password` must be sent as form data (so, no JSON here).

### `scope`

The spec also says that the client can send another form field "`scope`".

The form field name is `scope` (in singular), but it is actually a long string with "scopes" separated by spaces.

Each "scope" is just a string (without spaces).

entity. "You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License. "Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. "Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. "Work"...

public abstract class CharEscaper extends Escaper {
  /** Constructor for use by subclasses. */
  protected CharEscaper() {}

  /**
   * Returns the escaped form of a given literal string.
   *
   * @param string the literal string to be escaped
   * @return the escaped form of {@code string}
   * @throws NullPointerException if {@code string} is null
   */
  @Override
  public String escape(String string) {

def test_get_root():
    client = TestClient(app)
    response = client.get("/")
    assert response.status_code == 200, response.text
    assert b"<form" in response.content


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",

      exercising permissions granted by this License.

      "Source" form shall mean the preferred form for making modifications,
      including but not limited to software source code, documentation
      source, and configuration files.

      "Object" form shall mean any form resulting from mechanical
      transformation or translation of a Source form, including but
      not limited to compiled object code, generated documentation,

                            <div class="form-group row">
                                <label for="badWordFile" class="col-sm-3 text-sm-right col-form-label"><la:message
                                    key="labels.bad_word_file"/></label>
                                <div class="col-sm-9">
                                    <input type="file" id="badWordFile" name="badWordFile" class="form-control-file"/>
                                </div>

from fastapi import FastAPI, Form
from pydantic import BaseModel

app = FastAPI()


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

    class Config:
        extra = "forbid"


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

from fastapi import FastAPI, Form
from pydantic import BaseModel
from typing_extensions import Annotated

app = FastAPI()


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


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