* @param path the filesystem path to the source content
         * @throws NullPointerException if path is null
         */
        PathSource(Path path) {
            this(path, null);
        }

        /**
         * Constructs a new PathSource with the specified path and location.
         *
         * @param path the filesystem path to the source content

        @Override
        public String getName() {
            if (path == null || path.isEmpty() || path.equals("/")) {
                return host + "/"; // mimic the JVM behaviour for root or server
            }
            if (path.endsWith("/")) {
                return path.substring(0, path.length()); // keep trailing slash
            }
            String[] parts = path.split("/");
            return parts[parts.length - 1];
        }

# Body - Multiple Parameters { #body-multiple-parameters }

Now that we have seen how to use `Path` and `Query`, let's see more advanced uses of request body declarations.

## Mix `Path`, `Query` and body parameters { #mix-path-query-and-body-parameters }

First, of course, you can mix `Path`, `Query` and request body parameter declarations freely and **FastAPI** will know what to do.

    externalValue: AnyUrl | None

    __pydantic_config__ = {"extra": "allow"}  # type: ignore[misc]


class ParameterInType(Enum):
    query = "query"
    header = "header"
    path = "path"
    cookie = "cookie"


class Encoding(BaseModelWithConfig):
    contentType: str | None = None
    headers: dict[str, Union["Header", Reference]] | None = None
    style: str | None = None

        ArtifactHandler artifactHandler = artifact.getArtifactHandler();

        StringBuilder path = new StringBuilder(128);

        path.append(formatAsDirectory(artifact.getGroupId())).append(PATH_SEPARATOR);
        path.append(artifact.getArtifactId()).append(PATH_SEPARATOR);
        path.append(artifact.getBaseVersion()).append(PATH_SEPARATOR);
        path.append(artifact.getArtifactId()).append(ARTIFACT_SEPARATOR).append(artifact.getVersion());

          "type": "mapping",
          "mappings_path": "${fess.dictionary.path}fa/mapping.txt"
        },
        "mapping_ja_filter": {
          "type": "mapping",
          "mappings_path": "${fess.dictionary.path}ja/mapping.txt"
        },
        "mapping_filter": {
          "type": "mapping",
          "mappings_path": "${fess.dictionary.path}mapping.txt"
        },
        "traditional_chinese_convert": {

  }

  override fun atomicMove(
    source: Path,
    target: Path,
  ) {
    log("atomicMove($source, $target)")

    super.atomicMove(source, target)
  }

  override fun createDirectory(
    dir: Path,
    mustCreate: Boolean,
  ) {
    log("createDirectory($dir)")

    super.createDirectory(dir, mustCreate)
  }

  override fun delete(
    path: Path,
    mustExist: Boolean,
  ) {

    return item_id


@app.get("/path/param-lt/{item_id}")
def get_path_param_lt(item_id: float = Path(lt=3)):
    return item_id


@app.get("/path/param-lt0/{item_id}")
def get_path_param_lt0(item_id: float = Path(lt=0)):
    return item_id


@app.get("/path/param-le/{item_id}")
def get_path_param_le(item_id: float = Path(le=3)):
    return item_id

    client = TestClient(app)
    response = client.post(path, data={"p": "hello"})
    assert response.status_code == 200
    assert response.json() == {"p": None}


@pytest.mark.parametrize(
    "path",
    ["/optional-alias", "/model-optional-alias"],
)
def test_optional_alias_by_alias(path: str):
    client = TestClient(app)
    response = client.post(path, data={"p_alias": "hello"})

To deprecate a *path operation*, and show it in the docs UI, read the docs for [Tutorial - Path Operation Configurations - Deprecation](../tutorial/path-operation-configuration.md#deprecate-a-path-operation).

## Convert any Data to JSON-compatible { #convert-any-data-to-json-compatible }

To convert any data to JSON-compatible, read the docs for [Tutorial - JSON Compatible Encoder](../tutorial/encoder.md).