from fastapi import FastAPI, Form
from fastapi.testclient import TestClient
from typing_extensions import Annotated

app = FastAPI()


@app.post("/form/")
def post_form(username: Annotated[str, Form()]):
    return username


client = TestClient(app)


def test_single_form_field():
    response = client.post("/form/", data={"username": "Rick"})
    assert response.status_code == 200, response.text

    username: str
    lastname: str
    age: Optional[int] = None
    tags: List[str] = ["foo", "bar"]
    alias_with: str = Field(alias="with", default="nothing")


@app.post("/form/")
def post_form(user: Annotated[FormModel, Form()]):
    return user


client = TestClient(app)


def test_send_all_data():
    response = client.post(
        "/form/",
        data={
            "username": "Rick",

package okhttp3.recipes;

import java.io.IOException;
import okhttp3.FormBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;

public final class PostForm {
  private final OkHttpClient client = new OkHttpClient();

  public void run() throws Exception {
    RequestBody formBody = new FormBody.Builder()
        .add("search", "Jurassic Park")
        .build();

 */
package okhttp3.recipes.kt

import java.io.IOException
import okhttp3.FormBody
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.OkHttpClient
import okhttp3.Request

class PostForm {
  private val client = OkHttpClient()

  fun run() {
    val formBody =
      FormBody.Builder()
        .add("search", "Jurassic Park")
        .build()
    val request =
      Request(

 [PostFormJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PostForm.java
 [PostFormKotlin]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/kt/PostForm.kt
 [PostMultipartJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/PostMultipart.java

		return auth.Credentials{}, ErrAccessDenied
	}

	return user, ErrNone
}

func parseForm(r *http.Request) error {
	if err := r.ParseForm(); err != nil {
		return err
	}
	for k, v := range r.PostForm {
		if _, ok := r.Form[k]; !ok {
			r.Form[k] = v
		}
	}
	return nil
}

// getTokenSigningKey returns secret key used to sign JWT session tokens
func getTokenSigningKey() (string, error) {

pkg net/http, func NotFoundHandler() Handler
pkg net/http, func ParseHTTPVersion(string) (int, int, bool)
pkg net/http, func Post(string, string, io.Reader) (*Response, error)
pkg net/http, func PostForm(string, url.Values) (*Response, error)
pkg net/http, func ProxyFromEnvironment(*Request) (*url.URL, error)
pkg net/http, func ProxyURL(*url.URL) func(*Request) (*url.URL, error)

pkg net/http, method (*Transport) CancelRequest(*Request)
pkg net/http, type CloseNotifier interface { CloseNotify }
pkg net/http, type CloseNotifier interface, CloseNotify() <-chan bool
pkg net/http, type Request struct, PostForm url.Values
pkg net/http, type Server struct, TLSNextProto map[string]func(*Server, *tls.Conn, Handler)
pkg net/http, type Transport struct, ResponseHeaderTimeout time.Duration