和確保你的應用在開機時會執行一樣，你大概也會希望在發生失敗之後，它能「自動重新啟動」。

### 人都會犯錯 { #we-make-mistakes }

我們身為人，常常會犯錯。軟體幾乎總是有藏在各處的「臭蟲（bugs）」🐛

而我們開發者會在發現這些 bug 後持續改進程式碼、實作新功能（也可能順便加進新的 bug 😅）。

### 小錯誤自動處理 { #small-errors-automatically-handled }

使用 FastAPI 建構 Web API 時，如果我們的程式碼出錯，FastAPI 通常會把它限制在觸發該錯誤的單次請求之中。🛡

用戶端會收到「500 Internal Server Error」，但應用會繼續處理之後的請求，而不是整個崩潰。

### 更嚴重的錯誤 - 當機 { #bigger-errors-crashes }

small.txt Kilts small2.txt Google.com...

small.txt Kilts small2.txt Google.com link.txt...

      1263739024124850375L
    },
    {Long.MAX_VALUE, 2, 325, 9375, 28178, 450775, 9780504, 1795265022}
  };

  private enum MillerRabinTester {
    /** Works for inputs ≤ FLOOR_SQRT_MAX_LONG. */
    SMALL {
      @Override
      long mulMod(long a, long b, long m) {
        /*
         * lowasser, 2015-Feb-12: Benchmarks suggest that changing this to UnsignedLongs.remainder

| Paramètre | Type | Description |
|------------|------|-------------|
| `title` | `str` | Le titre de l’API. |
| `summary` | `str` | Un court résumé de l’API. <small>Disponible depuis OpenAPI 3.1.0, FastAPI 0.99.0.</small> |
| `description` | `str` | Une brève description de l’API. Elle peut utiliser Markdown. |

| Parametre | Tip | Açıklama |
|------------|------|-------------|
| `title` | `str` | API'nin başlığı. |
| `summary` | `str` | API'nin kısa özeti. <small>OpenAPI 3.1.0, FastAPI 0.99.0 sürümünden itibaren mevcut.</small> |
| `description` | `str` | API'nin kısa açıklaması. Markdown kullanabilir. |
| `version` | `string` | API'nin sürümü. Bu, OpenAPI'nin değil, kendi uygulamanızın sürümüdür. Örneğin `2.5.0`. |

                createFacetQueryView("timestamp", "1month", "timestamp:[now-1M TO *]", "1year", "timestamp:[now-1y TO *]"),
                createFacetQueryView("size", "small", "content_length:[0 TO 10000]", "large", "content_length:[10000 TO *]"));
        final MockHttpServletRequest request = new MockHttpServletRequest();
        request.setParameterValues("ex_q",

   * using a {@code LinkedHashSet} instead, at the cost of increased memory footprint, to get
   * deterministic iteration behavior.
   *
   * <p>This method is just a small convenience, either for {@code newHashSet(}{@link Arrays#asList
   * asList}{@code (...))}, or for creating an empty set then calling {@link Collections#addAll}.

small.txt Kilts small2.txt Google.com...

      Object[] newQueue = new Object[newCapacity];
      arraycopy(queue, 0, newQueue, 0, queue.length);
      queue = newQueue;
    }
  }

  /** Returns ~2x the old capacity if small; ~1.5x otherwise. */
  private int calculateNewCapacity() {
    int oldCapacity = queue.length;
    int newCapacity =
        (oldCapacity < 64) ? (oldCapacity + 1) * 2 : Math.multiplyExact(oldCapacity / 2, 3);