from fastapi import Depends, FastAPI

app = FastAPI()


async def common_parameters(q: str | None = None, skip: int = 0, limit: int = 100):
    return {"q": q, "skip": skip, "limit": limit}


@app.get("/items/")
async def read_items(commons: dict = Depends(common_parameters)):
    return commons


@app.get("/users/")
async def read_users(commons: dict = Depends(common_parameters)):

В примере выше значения по умолчанию равны `skip=0` и `limit=10`.

Таким образом, результат перехода по URL-адресу:

```
http://127.0.0.1:8000/items/
```

будет таким же, как если перейти используя параметры по умолчанию:

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

Но если вы введёте, например:

```
http://127.0.0.1:8000/items/?skip=20
```

Значения параметров в вашей функции будут:

from typing import Annotated

from fastapi import Depends, FastAPI

app = FastAPI()


async def common_parameters(q: str | None = None, skip: int = 0, limit: int = 100):
    return {"q": q, "skip": skip, "limit": limit}


@app.get("/items/")
async def read_items(commons: Annotated[dict, Depends(common_parameters)]):
    return commons


@app.get("/users/")
async def read_users(commons: Annotated[dict, Depends(common_parameters)]):

Dans l'exemple ci-dessus, ils ont des valeurs par défaut `skip=0` et `limit=10`.

Donc, accéder à l'URL :

```
http://127.0.0.1:8000/items/
```

serait équivalent à accéder à :

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

Mais si vous accédez, par exemple, à :

```
http://127.0.0.1:8000/items/?skip=20
```

Les valeurs des paramètres dans votre fonction seront :

from fastapi import FastAPI

app = FastAPI()


@app.get("/items/{item_id}")
async def read_user_item(
    item_id: str, needy: str, skip: int = 0, limit: int | None = None
):
    item = {"item_id": item_id, "needy": needy, "skip": skip, "limit": limit}

  }

  public void testSkip() throws IOException {
    assertEquals(10, counter.skip(10));
    assertEquals(10, counter.getCount());
  }

  public void testSkipEOF() throws IOException {
    assertEquals(20, counter.skip(30));
    assertEquals(20, counter.getCount());
    assertEquals(0, counter.skip(20));
    assertEquals(20, counter.getCount());

        }

        // attributes
        scanner.skip(WHITESPACE_WITH_EOL);
        while (!scanner.isEmpty() && scanner.lookingAt(ELEMENT_ATTRIBUTE)) {
            // attribute name
            scanner.mark();
            scanner.find(END_ATTRIBUTE_NAME);
            String attrName = scanner.region();

            // separator
            scanner.skip(ATTRIBUTE_SEPARATOR);

            // value

from typing import Annotated

from fastapi import Depends, FastAPI

app = FastAPI()


async def common_parameters(q: str | None = None, skip: int = 0, limit: int = 100):
    return {"q": q, "skip": skip, "limit": limit}


CommonsDep = Annotated[dict, Depends(common_parameters)]


@app.get("/items/")
async def read_items(commons: CommonsDep):
    return commons


@app.get("/users/")

	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgBatchJobExpire(b *testing.B) {
	v := BatchJobExpire{}
	b.ReportAllocs()
	b.ResetTimer()

	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
	}
}

func BenchmarkMarshalMsgAccElem(b *testing.B) {
	v := AccElem{}
	b.ReportAllocs()
	b.ResetTimer()