## **FastAPI**'s `OAuth2PasswordBearer` { #fastapis-oauth2passwordbearer }

**FastAPI** provides several tools, at different levels of abstraction, to implement these security features.

In this example we are going to use **OAuth2**, with the **Password** flow, using a **Bearer** token. We do that using the `OAuth2PasswordBearer` class.

/// info

## Dependency Injection { #dependency-injection }

Using `BackgroundTasks` also works with the dependency injection system, you can declare a parameter of type `BackgroundTasks` at multiple levels: in a *path operation function*, in a dependency (dependable), in a sub-dependency, etc.

package jcifs.smb1.smb1;

import java.io.UnsupportedEncodingException;
import java.util.Date;

import jcifs.smb1.util.LogStream;

class Trans2FindFirst2Response extends SmbComTransactionResponse {

    // information levels

    static final int SMB_INFO_STANDARD = 1;
    static final int SMB_INFO_QUERY_EA_SIZE = 2;
    static final int SMB_INFO_QUERY_EAS_FROM_LIST = 3;
    static final int SMB_FIND_FILE_DIRECTORY_INFO = 0x101;

        FileInformation basicInfo = mock(FileInformation.class);
        FileInformation standardInfo = mock(FileInformation.class);
        FileInformation internalInfo = mock(FileInformation.class);

        // Set different levels
        when(basicInfo.getFileInformationLevel()).thenReturn(FileInformation.FILE_BASIC_INFO);
        when(standardInfo.getFileInformationLevel()).thenReturn(FileInformation.FILE_STANDARD_INFO);

     * gaps. For example, an insecure TLS connection is capable of negotiating HTTP/2 with ALPN and
     * it also has a regular-looking handshake.
     *
     * **This feature is not supported on Android API levels less than 24.** Prior releases lacked
     * a mechanism to trust some hosts and not others.
     *
     * @param hostname the exact hostname from the URL for insecure connections.
     */

        }

        verify(autoCloseTree).close();
    }

    /**
     * Test for unwrap with nested wrapping.
     * Verifies that unwrap works correctly with multiple levels of wrapping.
     */
    @Test
    void testUnwrap_nestedWrapping() {
        // Create a chain of wrapped trees
        CustomSmbTree innerTree = mock(CustomSmbTree.class);

        void testInfoQuota() {
            assertEquals(4, Smb2Constants.SMB2_0_INFO_QUOTA, "Quota info level must be 4");
        }

        @Test
        @DisplayName("All info levels should be sequential")
        void testInfoLevelsSequential() {
            assertEquals(Smb2Constants.SMB2_0_INFO_FILE + 1, Smb2Constants.SMB2_0_INFO_FILESYSTEM, "Filesystem should be File + 1");

    @ParameterizedTest
    @ValueSource(bytes = { FileInformation.FILE_BASIC_INFO, FileInformation.FILE_STANDARD_INFO, FileInformation.FILE_INTERNAL_INFO })
    @DisplayName("Test readDataWireFormat with different information levels")
    void testReadDataWireFormatWithDifferentLevels(byte infoLevel) throws SMBProtocolDecodingException {
        response = new Trans2QueryPathInformationResponse(mockConfig, infoLevel);

All these tasks help maintain the repository.

A round of applause to them. 👏 🙇

## Team

This is the current list of team members. 😎

They have different levels of involvement and permissions, they can perform [repository management tasks](./management-tasks.md){.internal-link target=_blank} and together we  [manage the FastAPI repository](./management.md){.internal-link target=_blank}.

KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.
-->

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