{* ../../docs_src/first_steps/tutorial001_py39.py hl[6] *}

The `@app.get("/")` tells **FastAPI** that the function right below is in charge of handling requests that go to:

* the path `/`
* using a <abbr title="an HTTP GET method"><code>get</code> operation</abbr>

/// info | `@decorator` Info

That `@something` syntax in Python is called a "decorator".

{* ../../docs_src/first_steps/tutorial001_py39.py hl[6] *}

Das `@app.get("/")` sagt **FastAPI**, dass die Funktion direkt darunter für die Bearbeitung von <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Requests</abbr> zuständig ist, die an:

* den Pfad `/`
* unter der Verwendung der <abbr title="eine HTTP-GET-Methode"><code>get</code>-Operation</abbr> gehen

/// info | `@decorator` Info

After authenticating in the system, you will see it like:

<img src="/img/tutorial/security/image05.png">

### Get your own user data { #get-your-own-user-data }

Now use the operation `GET` with the path `/users/me`.

You will get your user's data, like:

```JSON
{
  "username": "johndoe",
  "email": "******@****.***",
  "full_name": "John Doe",
  "disabled": false,

		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminOpenIDNotEnabled), r.URL)
		return
	}

	userList := r.Form["users"]
	isAll := r.Form.Get("all") == "true"
	selfOnly := !isAll && len(userList) == 0
	cfgName := r.Form.Get("configName")
	allConfigs := r.Form.Get("allConfigs") == "true"
	if cfgName == "" && !allConfigs {
		cfgName = madmin.Default
	}

	if isAll && len(userList) > 0 {

def test_query_params_str_validations_no_query(client: TestClient):
    response = client.get("/items/")
    assert response.status_code == 200
    assert response.json() == {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}


def test_query_params_str_validations_item_query_fixedquery(client: TestClient):
    response = client.get("/items/", params={"item-query": "fixedquery"})
    assert response.status_code == 200

async def create_user(user: UserCreate):
    return user


@app.get("/pets/{pet_id}", response_model=PetOut)
async def read_pet(pet_id: int):
    user = UserDB(
        email="******@****.***",
        hashed_password="secrethashed",
    )
    pet = PetDB(name="Nibbler", owner=user)
    return pet


@app.get("/pets/", response_model=list[PetOut])
async def read_pets():
    user = UserDB(

        assertEquals(2, subsequent.size());
        assertEquals(ProjectDependencyGraphStub.B, subsequent.get(0));
        assertEquals(C, subsequent.get(1));

        final List<MavenProject> bDescendants = graph.markAsFinished(B);
        assertEquals(1, bDescendants.size());
        assertEquals(Y, bDescendants.get(0));

        final List<MavenProject> cDescendants = graph.markAsFinished(C);

    assertFalse(future.isDone());
    assertFalse(future.isCancelled());
    assertThrows(TimeoutException.class, () -> future.get(0, MILLISECONDS));
    nested.set("foo");
    assertTrue(future.isDone());
    assertFalse(future.isCancelled());
    assertEquals("foo", future.get());
  }

  private static class Foo {}

  private static class FooChild extends Foo {}

from fastapi.testclient import TestClient

app = FastAPI()


@app.get("/required-str/{p}")
async def read_required_str(p: Annotated[str, Path()]):
    return {"p": p}


@app.get("/required-alias/{p_alias}")
async def read_required_alias(p: Annotated[str, Path(alias="p_alias")]):
    return {"p": p}


@app.get("/required-validation-alias/{p_val_alias}")
def read_required_validation_alias(

   *   <li><i>consistency</i>: {@code comparator.compare(ti, tj) < 0} and {@code
   *       comparator.compare(tj, ti) > 0} for {@code i < j}, where {@code ti =
   *       valuesInExpectedOrder.get(i)} and {@code tj = valuesInExpectedOrder.get(j)}.
   * </ul>
   */
  public static <T extends @Nullable Object> void testComparator(
      Comparator<? super T> comparator, List<T> valuesInExpectedOrder) {