"loc": [
        "query",
        "needy"
      ],
      "msg": "Field required",
      "input": null
    }
  ]
}
```

Da `needy` ein erforderlicher Parameter ist, müssen Sie ihn in der URL setzen:

```
http://127.0.0.1:8000/items/foo-item?needy=sooooneedy
```

... Das funktioniert:

```JSON
{
    "item_id": "foo-item",
    "needy": "sooooneedy"
}
```

Aquí el parámetro de query `needy` es un parámetro de query requerido de tipo `str`.

Si abres en tu navegador una URL como:

```
http://127.0.0.1:8000/items/foo-item
```

...sin agregar el parámetro requerido `needy`, verás un error como:

```JSON
{
  "detail": [
    {
      "type": "missing",
      "loc": [
        "query",
        "needy"
      ],

      "loc": [
        "query",
        "needy"
      ],
      "msg": "Field required",
      "input": null
    }
  ]
}
```

`needy` zorunlu bir parametre olduğundan dolayı bağlantıda tanımlanması gerekir:

```
http://127.0.0.1:8000/items/foo-item?needy=sooooneedy
```

...bu iş görür:

```JSON
{
    "item_id": "foo-item",
    "needy": "sooooneedy"
}
```

Тут `needy` – обов’язковий query параметр типу `str`.

Якщо Ви відкриєте у браузері URL-адресу:

```
http://127.0.0.1:8000/items/foo-item
```

...без додавання обов’язкового параметра `needy`, Ви побачите помилку:

```JSON
{
  "detail": [
    {
      "type": "missing",
      "loc": [
        "query",
        "needy"
      ],
      "msg": "Field required",

        "query",
        "needy"
      ],
      "msg": "Field required",
      "input": null
    }
  ]
}
```

As `needy` is a required parameter, you would need to set it in the URL:

```
http://127.0.0.1:8000/items/foo-item?needy=sooooneedy
```

...this would work:

```JSON
{
    "item_id": "foo-item",
    "needy": "sooooneedy"
}
```

    }

    @Test
    void testWriteDataWireFormat() {
        // Given
        // writeInt8 writes 8 bytes but needs to access dst[dstIndex+7]
        // Total bytes written: 8+8+8+8+2+6=40
        // But writeInt8 at position 34 needs to access position 34+7=41
        // So we need at least 42 bytes in the array
        byte[] dst = new byte[42];

        // When

        // This would need to be implemented based on the actual SmbTransport constructor
        // For now, return null - this needs integration with the actual transport creation
        throw new UnsupportedOperationException("Transport creation needs integration with SmbTransportPool");
    }

    /**
     * Perform channel binding for a channel

]
```

These are **JavaScript** objects, not strings, so you can't pass them from Python code directly.

///

## Install Packages { #install-packages }

After activating the environment, you can install packages in it.

/// tip

Do this **once** when installing or upgrading the packages your project needs.

If you need to upgrade a version or add a new package you would **do this again**.

///

### Install Packages Directly { #install-packages-directly }

* The frontend stores that token temporarily somewhere.
* The user clicks in the frontend to go to another section of the frontend web app.
* The frontend needs to fetch some more data from the API.
    * But it needs authentication for that specific endpoint.
    * So, to authenticate with our API, it sends a header `Authorization` with a value of `Bearer ` plus the token.