"404": {
                                "description": "The item was not found",
                                "content": {
                                    "application/json": {
                                        "schema": {
                                            "$ref": "#/components/schemas/Message"
                                        }
                                    }

import org.codelibs.curl.CurlResponse;

try (CurlResponse response = Curl.get("https://example.com")
                                .param("q", "curl4j")
                                .header("Accept", "application/json")
                                .execute()) {
    System.out.println("Status: " + response.getHttpStatusCode());
    System.out.println(response.getContentAsString());
}
```

### Asynchronous request

                                "description": "Return the JSON item or an image.",
                                "content": {
                                    "image/png": {},
                                    "application/json": {
                                        "schema": {"$ref": "#/components/schemas/Item"}
                                    },
                                },
                            },

    assertThat(body!!.contentType().toString()).isEqualTo(
      "application/x-www-form-urlencoded; charset=utf-8",
    )
    assertThat(bodyAsString(body)).isEqualTo("foo")
  }

  @Test
  fun contentTypeHeader() {
    val request =
      fromArgs(
        "-d",
        "foo",
        "-H",
        "Content-Type: application/json",
        "http://example.com",
      ).createRequest()

Dans cette section, vous verrez comment faire.

## Le processus normal { #the-normal-process }

Le processus normal (par défaut) est le suivant.

Une application (instance) `FastAPI` a une méthode `.openapi()` censée retourner le schéma OpenAPI.

Lors de la création de l'objet application, un *chemin d'accès* pour `/openapi.json` (ou pour l'URL que vous avez définie dans votre `openapi_url`) est enregistré.

                            "200": {
                                "content": {"application/json": {"schema": {}}},
                                "description": "Successful Response",
                            },
                            "422": {
                                "content": {
                                    "application/json": {
                                        "schema": {

                            "200": {
                                "content": {"application/json": {"schema": {}}},
                                "description": "Successful Response",
                            },
                            "422": {
                                "content": {
                                    "application/json": {
                                        "schema": {

There's a whole chapter here in the documentation about it, you can read it at [Additional Responses in OpenAPI](additional-responses.md).

## OpenAPI Extra { #openapi-extra }

When you declare a *path operation* in your application, **FastAPI** automatically generates the relevant metadata about that *path operation* to be included in the OpenAPI schema.

/// note | Technical details

    private static final String FESS_OVERRIDE_CONF_PATH = "FESS_OVERRIDE_CONF_PATH";

    /** Environment variable name for specifying the application type */
    private static final String FESS_APP_TYPE = "FESS_APP_TYPE";

    /** Constant value representing Docker application type */
    private static final String FESS_APP_DOCKER = "docker";

    /**
     * Protected constructor to prevent instantiation of this utility class.

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Application startup complete.
```

</div>

It is **HIGHLY encouraged** that you write or copy the code, edit it and run it locally.