{* ../../docs_src/query_param_models/tutorial001_an_py310.py hl[9:13,17] *}

**FastAPI** will **extract** the data for **each field** from the **query parameters** in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can see the query parameters in the docs UI at `/docs`:

<div class="screenshot">
<img src="/img/tutorial/query-param-models/image01.png">

    /**
     * Set the authentication time-to-live in milliseconds
     *
     * @param ttl time-to-live in milliseconds (0 or negative for no expiration)
     */
    public void setAuthenticationTTL(long ttl) {
        this.authenticationTTL = ttl;
    }

    /**
     * Get the authentication time-to-live in milliseconds
     *
     * @return time-to-live in milliseconds
     */

    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2,
    "tags": ["rock", "metal", "bar"],
    "image": {
        "url": "http://example.com/baz.jpg",
        "name": "The Foo live"
    }
}
```

Завдяки такій декларації у **FastAPI** Ви отримуєте:

* Підтримку в редакторі (автозавершення тощо), навіть для вкладених моделей
* Конвертацію даних
* Валідацію даних

Here's a short description of how the FastAPI repository is managed and maintained.

## Owner

I, <a href="https://github.com/tiangolo" target="_blank">@tiangolo</a>, am the creator and owner of the FastAPI repository. 🤓

package cmd

import (
	"net/http"

	"github.com/minio/mux"
)

const (
	healthCheckPath            = "/health"
	healthCheckLivenessPath    = "/live"
	healthCheckReadinessPath   = "/ready"
	healthCheckClusterPath     = "/cluster"
	healthCheckClusterReadPath = "/cluster/read"
	healthCheckPathPrefix      = minioReservedBucketPath + healthCheckPath
)

  private static final Integer I0 = -45;
  private static final Integer I1 = -1;
  private static final Integer I2 = 3;
  private static final String S0 = "3";
  private static final String S1 = "Ninety five";
  private static final String S2 = "44 one million";
  private static final String S3 = "Lowly laundry lefties";
  private static final String S4 = "89273487U#*&#";
  private static final Double D0 = 9.234d;

{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2,
    "tags": ["rock", "metal", "bar"],
    "image": {
        "url": "http://example.com/baz.jpg",
        "name": "The Foo live"
    }
}
```

Nuevamente, haciendo solo esa declaración, con **FastAPI** obtienes:

* Soporte de editor (autocompletado, etc.), incluso para modelos anidados
* Conversión de datos
* Validación de datos

                                        {"name": "Bar", "price": "35.4"},
                                        {
                                            "name": "Baz",
                                            "price": "thirty five point four",
                                        },
                                    ],
                                }
                            }
                        },

    return new SampleElements<>(
        mapEntry("one", "January"),
        mapEntry("two", "February"),
        mapEntry("three", "March"),
        mapEntry("four", "April"),
        mapEntry("five", "May"));
  }

  @Override
  public final BiMap<String, String> create(Object... entries) {
    @SuppressWarnings("unchecked")
    Entry<String, String>[] array = (Entry<String, String>[]) new Entry<?, ?>[entries.length];

    For development, prefer the command live (or just mkdocs serve).

    This is here only to preview a site with translations already built.

    Make sure you run the build-all command first.
    """
    typer.echo("Warning: this is a very simple server.")
    typer.echo("For development, use the command live instead.")