### Technical Details: `root_path` { #technical-details-root-path }

When you mount a sub-application as described above, FastAPI will take care of communicating the mount path for the sub-application using a mechanism from the ASGI specification called a `root_path`.

That way, the sub-application will know to use that path prefix for the docs UI.

### L’expression du chemin de callback { #the-callback-path-expression }

* [`Parameter Object` (у специфікації)](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#parameter-object), який використовувався утилітами FastAPI:
    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`
* [`Request Body Object`, у полі `content`, у `Media Type Object` (у специфікації)](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#media-type-object), який використовувався утилітами FastAPI:

* *路径*可以包含 [OpenAPI 3 表达式](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#key-expression)（详见下文），可以使用带参数的变量，以及发送至您的 API 的原始请求的部分

### 回调路径表达式 { #the-callback-path-expression }

回调*路径*支持包含发送给您的 API 的原始请求的部分的 [OpenAPI 3 表达式](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#key-expression)。

本例中是 `str`：

```Python

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package gradlebuild.cleanup.services

import spock.lang.Specification

class LeakingProcessKillPatternTest extends Specification {

    def "matches worker process started in test on Windows"() {

* [`Parameter Object` (명세서에 있는)](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#parameter-object)는 FastAPI의 다음 기능에서 쓰였습니다:
    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`
* [`Request Body Object`, `Media Type Object` (명세서에 있는)의 `content` 필드에 있는](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.1.0.md#media-type-object)는 FastAPI의 다음 기능에서 쓰였습니다:
    * `Body()`

 * char}, {@code short}, {@code int}, {@code float}, {@code double}, and {@code long} values.
 *
 * <p><b>Note:</b> This class intentionally violates the specification of its supertype {@code
 * DataOutput}, which explicitly requires big-endian byte order.
 *
 * @author Chris Nokleberg
 * @author Keith Bottner
 * @since 8.0
 */
@J2ktIncompatible
@GwtIncompatible

 * data transfers with support for multiple compression algorithms.
 */
public interface CompressionService {

    /**
     * Compression algorithm constants matching SMB3 specification.
     */
    public static final int COMPRESSION_NONE = 0x0;
    public static final int COMPRESSION_LZ77 = 0x1;
    public static final int COMPRESSION_LZ77_HUFFMAN = 0x2;

Et cette fonction `get_openapi()` reçoit comme paramètres :

* `title` : Le titre OpenAPI, affiché dans les documents.
* `version` : La version de votre API, p. ex. `2.5.0`.
* `openapi_version` : La version de la spécification OpenAPI utilisée. Par défaut, la plus récente : `3.1.0`.
* `summary` : Un court résumé de l'API.
* `description` : La description de votre API ; elle peut inclure du markdown et sera affichée dans la documentation.

        #  Additional schemas have original settings apart from the main schema.
        #  The settings are objectTypeTargetList, tableExceptList,
        #  tableTargetList, and columnExceptMap.
        #  They have the same specification as ones of the main schema.
        #  Elements of this map are as below: 
        #    o objectTypeTargetList: (NotRequired - Default 'map:{TABLE;VIEW}')
        #    o tableExceptList: (NotRequired - Default list:{})