{* ../../docs_src/body/tutorial002_py310.py *}

## Request body + path parameters { #request-body-path-parameters }

You can declare path parameters and request body at the same time.

**FastAPI** will recognize that the function parameters that match path parameters should be **taken from the path**, and that function parameters that are declared to be Pydantic models should be **taken from the request body**.

# Query Parameters and String Validations { #query-parameters-and-string-validations }

**FastAPI** allows you to declare additional information and validation for your parameters.

Let's take this application as example:

{* ../../docs_src/query_params_str_validations/tutorial001_py310.py hl[7] *}

                "get": {
                    "tags": ["path1a", "path1b"],
                    "summary": "Path1 Override",
                    "operationId": "path1_override_override1_get",
                    "parameters": [
                        {
                            "required": True,
                            "schema": {"title": "Level1", "type": "string"},
                            "name": "level1",

# Cookie Parameters { #cookie-parameters }

You can define Cookie parameters the same way you define `Query` and `Path` parameters.

## Import `Cookie` { #import-cookie }

First import `Cookie`:

{* ../../docs_src/cookie_params/tutorial001_an_py310.py hl[3] *}

## Declare `Cookie` parameters { #declare-cookie-parameters }

Then declare the cookie parameters using the same structure as with `Path` and `Query`.

///

/// tip

To declare File bodies, you need to use `File`, because otherwise the parameters would be interpreted as query parameters or body (JSON) parameters.

///

The files will be uploaded as "form data".

If you declare the type of your *path operation function* parameter as `bytes`, **FastAPI** will read the file for you and you will receive the contents as `bytes`.

                            },
                        },
                    },
                    "summary": "Get Id",
                    "operationId": "get_id_path__item_id__get",
                    "parameters": [
                        {
                            "required": True,
                            "schema": {"title": "Item Id"},
                            "name": "item_id",

Parameter werden anhand ihres Namens erkannt:

{* ../../docs_src/query_params/tutorial004_py310.py hl[6,8] *}

## Erforderliche Query-Parameter { #required-query-parameters }

Wenn Sie einen Defaultwert für Nicht-Pfad-Parameter deklarieren (Bis jetzt haben wir nur Query-Parameter gesehen), dann ist der Parameter nicht erforderlich.

    ImmutableList<Parameter> parameters = delegate.getParameters();
    assertEquals(2, parameters.size());
    assertEquals(String.class, parameters.get(0).getType().getType());
    assertTrue(parameters.get(0).isAnnotationPresent(NotBlank.class));
    assertEquals(int.class, parameters.get(1).getType().getType());
    assertFalse(parameters.get(1).isAnnotationPresent(NotBlank.class));
    new EqualsTester()

    @Suppress("UNCHECKED_CAST")
    fun generate(parameters: Map<String, Any>) {
        generateKotlinDslApiExtensionsSourceTo(
            parameters["asmLevel"] as Int,
            parameters["platformClassLoader"] as ClassLoader,
            parameters["incubatingAnnotationTypeDescriptor"] as String,
            parameters["outputDirectory"] as File,
            parameters["packageName"] as String,

                "The parameters " + format(parameters) + " for goal " + mojo.getRoleHint() + " are missing or invalid");

        this.mojo = mojo;

        this.parameters = parameters;
    }

    private static String format(List<Parameter> parameters) {
        StringBuilder buffer = new StringBuilder(128);
        if (parameters != null) {
            for (Parameter parameter : parameters) {