*/
    @Resource
    protected FessConfig fessConfig;

    /**
     * Time interval in milliseconds after which jobs are considered expired.
     * Default is 2 hours (2 * 60 * 60 * 1000L).
     */
    protected long expiredJobInterval = 2 * 60 * 60 * 1000L; // 2hours

    /**
     * Retrieves a paginated list of job logs based on the provided pager configuration.
     *

        // Test with cross-midnight rule
        IntervalRule crossRule = new IntervalRule("22:00", "02:00", "1", 1000); // Sunday only
        // For cross-midnight rule, when checking early morning hours (1:30), it checks day+1
        // day=8 becomes day=1, so day+1=2, which is Monday (not Sunday)
        assertFalse(crossRule.isTarget(1, 30, 8)); // Should be treated as day 1 (Sunday), checking day+1=2 (Monday)
    }

Clients might rely on the platform certificates and servers might use a private
organization-specific certificate authority.

By default `HeldCertificate` instances expire after 24 hours. Use `duration()` to adjust.

By default server certificates need to identify which hostnames they're trusted for. You may add as
many as necessary with `addSubjectAlternativeName()`. This mechanism also supports a very limited

      assertThat(rewrittenResponse.trailers()).isEqualTo(headersOf("t1", "v1"))
    }
  }

  /**
   * We had a bug where a custom `ResponseBody` interacted poorly with `Response.trailers()`.
   * Confirm custom trailers can be read without even accessing the response body.
   */
  @Test
  fun customTrailersDoNotUseResponseBody() {
    val response =
      Response

    assertThrows(IllegalArgumentException.class, () -> Resources.getResource(tempFile.getName()));

    // Now set the context loader to one that should find the resource.
    URL baseUrl = tempFile.getParentFile().toURI().toURL();
    URLClassLoader loader = new URLClassLoader(new URL[] {baseUrl});
    ClassLoader oldContextLoader = Thread.currentThread().getContextClassLoader();
    try {
      Thread.currentThread().setContextClassLoader(loader);

You could also define it as a normal function instead of `async def`:

{* ../../docs_src/first_steps/tutorial003.py hl[7] *}

/// note

If you don't know the difference, check the [Async: *"In a hurry?"*](../async.md#in-a-hurry){.internal-link target=_blank}.

///

### Step 5: return the content { #step-5-return-the-content }

{* ../../docs_src/first_steps/tutorial001.py hl[8] *}

| HttpUrl.parse(String)               | String.toHttpUrlOrNull()        |
| HttpUrl.uri()                       | HttpUrl.toUri()                 |
| HttpUrl.url()                       | HttpUrl.toUrl()                 |
| MediaType.get(String)               | String.toMediaType()            |
| MediaType.parse(String)             | String.toMediaTypeOrNull()      |

@app.get("/items/{item_id}")
async def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

**Lưu ý**:

Nếu bạn không biết, xem phần _"In a hurry?"_ về <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank">`async` và `await` trong tài liệu này</a>.

</details>

### Chạy ứng dụng

Chạy server như sau:

<div class="termy">

```console

    public void test_basicValidCronExpressions() {
        final ConstraintValidatorContext context = null;

        // Test basic patterns that should be valid
        String[] potentiallyValidCrons = { "0 0 * * * ?", // Every hour
                "0 */15 * * * ?", // Every 15 minutes
                "0 0 12 * * ?", // Daily at noon
                "0 15 10 ? * MON-FRI" // Weekdays at 10:15
        };

# Concurrency and async / await { #concurrency-and-async-await }

Details about the `async def` syntax for *path operation functions* and some background about asynchronous code, concurrency, and parallelism.

## In a hurry? { #in-a-hurry }

<abbr title="too long; didn't read"><strong>TL;DR:</strong></abbr>

If you are using third party libraries that tell you to call them with `await`, like:

```Python
results = await some_library()
```