Using `Depends(scope="function")`, the exit code after `yield` is executed right after the *path operation function* is finished, before the response is sent back to the client.

And when using `Depends(scope="request")` (the default), the exit code after `yield` is executed after the response is sent.

///

## Early exit and `scope` { #early-exit-and-scope }

Normally the exit code of dependencies with `yield` is executed **after the response** is sent to the client.

## Dependencies with `yield` and `scope`

When using dependencies with `yield`, they can have a `scope` that defines when the exit code is run.

Use the default scope `"request"` to run the exit code after the response is sent back.

```python
from typing import Annotated

from fastapi import Depends, FastAPI

app = FastAPI()


def get_db():

            ByteArrayOutputStream errContent = new ByteArrayOutputStream();
            System.setErr(new PrintStream(errContent));

            String[] args = { "--help" };
            // Note: main calls System.exit, so we can't test it directly
            // Instead, we test the parsing logic separately

            System.setErr(originalErr);
        } catch (Exception e) {
            System.setErr(originalErr);
        }

      - id: local-ruff-check
        name: ruff check
        entry: uv run ruff check --force-exclude --fix --exit-non-zero-on-fix
        require_serial: true
        language: unsupported
        types: [python]

      - id: local-ruff-format
        name: ruff format
        entry: uv run ruff format --force-exclude --exit-non-zero-on-format
        require_serial: true
        language: unsupported
        types: [python]

APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit

# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum

warn () {
    echo "$*"
} >&2

die () {
    echo
    echo "$*"
    echo
    exit 1
} >&2

# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false

          MSSQL_SA_PASSWORD: LoremIpsum86
        ports:
          - 9930:1433
        options: >-
          --health-cmd="/opt/mssql-tools18/bin/sqlcmd -S localhost -U sa -P ${MSSQL_SA_PASSWORD} -N -C -l 30 -Q \"SELECT 1\" || exit 1"
          --health-start-period 10s
          --health-interval 10s
          --health-timeout 5s
          --health-retries 10

    steps:
    - name: Set up Go 1.x
      uses: actions/setup-go@v5

        ${if (exitOnFailure) "exit 1" else ""}
    else
        echo "${'$'}REPO does not exist"
    fi

    """.trimIndent()

fun checkCleanDirWindows(
    dir: String,
    exitOnFailure: Boolean = true,
) = """

    IF exist $dir (
        TREE $dir
        RMDIR /S /Q $dir
        ${if (exitOnFailure) "EXIT 1" else ""}
    )
    """.trimIndent()

  protected void setUp() {
    runtimeMock = mock(RuntimeWrapper.class);
  }

  public void testExiter() {
    new Exiter(runtimeMock).uncaughtException(new Thread(), new Exception());
    verify(runtimeMock).exit(1);
  }

    assertThat(expected)
        .hasMessageThat()
        .isEqualTo("I bet you didn't think Thread.interrupt could throw");
    /*
     * We need to wait for the runner to exit. It used to be that the runner would get stuck in the
     * busy loop when interrupt threw.
     *
     * While we're at it, we confirm that the interrupt happened as expected.
     */