},
      logger = logger,
    )

  /** Runs all tasks that are ready. Used by the test thread only. */
  fun runTasks() {
    advanceUntil(nanoTime)
  }

  /** Advance the simulated clock, then runs tasks that are ready. Used by the test thread only. */
  fun advanceUntil(newTime: Long) {
    taskRunner.assertThreadDoesntHoldLock()

    taskRunner.lock.withLock {

        override fun contentType(): MediaType? {
          return ******@****.***tType()
        }

        override fun contentLength(): Long {
          return -1 // We don't know the compressed length in advance!
        }

        @Throws(IOException::class)
        override fun writeTo(sink: BufferedSink) {
          GzipSink(sink).buffer().use(this@gzip::writeTo)
        }

      detachTimeout(timeout)

      state = STATE_CLOSED
    }
  }

  /** An HTTP body with a fixed length specified in advance. */
  private inner class FixedLengthSource(private var bytesRemaining: Long) :
    AbstractSource() {
    init {
      if (bytesRemaining == 0L) {
        responseBodyComplete()
      }
    }

    taskFaker.runNextTask()
    assertThat(log).containsExactly(
      "red:starting@0",
      "blue:starting@0",
    )
    assertThat(taskFaker.executeCallCount).isEqualTo(2)

    // Advance time until the tasks complete.
    taskFaker.advanceUntil(100.µs)
    assertThat(log).containsExactly(
      "red:starting@0",
      "blue:starting@0",
      "red:finishing@100000",
      "blue:finishing@100000",

    ): Boolean {
        /**
         * Avoid shortening reference to enum companion used in enum entry initialization there is no guarantee that the companion object
         * was initialized in advance.
         * For example, When we shorten the following code:
         *     enum class C(val i: Int) {
         *         ONE(<expr>C.K</expr>)  // shorten C.K to K
         *         ;

```Python hl_lines="6"
{!../../../docs_src/path_operation_advanced_configuration/tutorial005.py!}
```

Si vous ouvrez la documentation automatique de l'API, votre extension apparaîtra au bas du *chemin* spécifique.

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

Nils Lindemann <******@****.***> 1711829929 +0100

# Advanced User Guide

## Additional Features

The main [Tutorial - User Guide](../tutorial/index.md){.internal-link target=_blank} should be enough to give you a tour through all the main features of **FastAPI**.

In the next sections you will see other options, configurations, and additional features.

!!! tip
    The next sections are **not necessarily "advanced"**.

    And it's possible that for your use case, the solution is in one of them.

# Path Operation Advanced Configuration

## OpenAPI operationId

!!! warning
    If you are not an "expert" in OpenAPI, you probably don't need this.

You can set the OpenAPI `operationId` to be used in your *path operation* with the parameter `operation_id`.

You would have to make sure that it is unique for each operation.

```Python hl_lines="6"
{!../../../docs_src/path_operation_advanced_configuration/tutorial001.py!}
```

```Python hl_lines="6"
{!../../../docs_src/path_operation_advanced_configuration/tutorial005.py!}
```

Wenn Sie die automatische API-Dokumentation öffnen, wird Ihre Erweiterung am Ende der spezifischen *Pfadoperation* angezeigt.

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