logger.debug("loaded filetype: {}", mimetypeMap);
        }
    }

    /**
     * Adds or updates a MIME type to file type mapping.
     *
     * @param mimetype the MIME type to map (e.g., "application/pdf")
     * @param filetype the file type classification (e.g., "pdf")
     */
    public void add(final String mimetype, final String filetype) {
        mimetypeMap.put(mimetype, filetype);
    }

    /**

## Pin your `fastapi` version { #pin-your-fastapi-version }

The first thing you should do is to "pin" the version of **FastAPI** you are using to the specific latest version that you know works correctly for your application.

For example, let's say you are using version `0.112.0` in your app.

If you use a `requirements.txt` file you could specify the version with:

```txt
fastapi[standard]==0.112.0
```

     <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>

出力には次のような行があります:

```hl_lines="4"
INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

        val parts = header.split(':', limit = 2)
        if ("Content-Type".equals(parts[0], ignoreCase = true)) {
          return@let parts[1].trim()
        }
      }
      return@let null
    } ?: "application/x-www-form-urlencoded"

  return mimeType.toMediaTypeOrNull()
}

private fun isSpecialHeader(s: String): Boolean = s.equals("Content-Type", ignoreCase = true)

fun Main.commonRun() {
  client = createClient()

            @Override
            protected void doFile(HttpServletRequest req, HttpServletResponse resp, SmbFile file) throws IOException {
                // Mock implementation
                resp.setContentType("application/octet-stream");
                resp.setHeader("Content-Length", "100");
            }
        };

        networkExplorer.init(servletConfig);

        // Setup authentication

 * Provides RESTful API endpoints for managing general system configuration settings in the Fess search engine.
 * General settings include system-wide parameters, LDAP configuration, and core application settings.
 *
 */
public class ApiAdminGeneralAction extends FessApiAdminAction {

    // ===================================================================================

You will learn more about adding extra information later in the docs, when learning to declare examples.

/// warning

Extra keys passed to `Field` will also be present in the resulting OpenAPI schema for your application.
As these keys may not necessarily be part of the OpenAPI specification, some OpenAPI tools, for example [the OpenAPI validator](https://validator.swagger.io/), may not work with your generated schema.

///

            checkPostMethod(requestBody, getItemEndpointSuffix());
        }
        refresh();

        // Download CSV
        Response response =
                given().contentType("application/json").header("Authorization", getTestToken()).when().get(getApiPath() + "/download");

        assertEquals(200, response.getStatusCode());
        String body = response.getBody().asString();

   *
   * The initialization time may vary depending on the journal file size and the current actual
   * cache size. The application needs to be aware of calling this function during the
   * initialization phase and preferably in a background worker thread.
   *
   * Note that if the application chooses to not call this method to initialize the cache. By
   * default, OkHttp will perform lazy initialization upon the first usage of the cache.

They will be added to the OpenAPI schema and used by the automatic documentation interfaces:

<img src="/img/tutorial/path-operation-configuration/image01.png">

### Tags with Enums { #tags-with-enums }

If you have a big application, you might end up accumulating **several tags**, and you would want to make sure you always use the **same tag** for related *path operations*.

In these cases, it could make sense to store the tags in an `Enum`.