これらは、システム、データストア、リレーショナルデータベース、NoSQLデータベースなどと簡単に統合できる再利用可能なツールとコンポーネントとして構築されています。

### 依存性の注入（Dependency Injection）

FastAPIには非常に使いやすく、非常に強力な<abbr title='also known as "components", "resources", "services", "providers"'><strong>依存性の注入</strong></abbr>システムを備えています。

* 依存関係でさえも依存関係を持つことができ、階層または **依存関係の"グラフ"** を作成することができます。

* フレームワークによってすべて**自動的に処理**されます。

            throw new TransferFailedException("Authorization failed: " + e.getMessage(), e);
        } catch (ResourceDoesNotExistException e) {
            throw new TransferFailedException("Resource to deploy not found: " + e.getMessage(), e);
        } catch (IOException e) {
            throw new TransferFailedException("Error creating temporary file for deployment: " + e.getMessage(), e);
        } finally {

/// tip | Совет

Я приведу более конкретные примеры с контейнерами в следующей главе: [FastAPI внутри контейнеров — Docker](docker.md){.internal-link target=_blank}.

///

## Использование ресурсов { #resource-utilization }

Ваш сервер(а) — это **ресурс**, который ваши программы могут потреблять или **использовать**: время вычислений на CPU и доступную оперативную память (RAM).

	apiRouter.MethodNotAllowedHandler = collectAPIStats("methodnotallowed", httpTraceAll(methodNotAllowedHandler("S3")))
}

// corsHandler handler for CORS (Cross Origin Resource Sharing)
func corsHandler(handler http.Handler) http.Handler {
	commonS3Headers := []string{
		xhttp.Date,
		xhttp.ETag,
		xhttp.ServerInfo,
		xhttp.Connection,
		xhttp.AcceptRanges,
		xhttp.ContentRange,

          which You Share the Licensed Material. For example, it may be
          reasonable to satisfy the conditions by providing a URI or
          hyperlink to a resource that includes the required
          information.

       3. If requested by the Licensor, You must remove any of the
          information required by Section 3(a)(1)(A) to the extent
          reasonably practicable.

            if (wasEmpty) {
              notifyAll()
            }
          }
        }
      }

      // Update the connection flow control, as this is a shared resource.
      // Even if our stream doesn't need more data, others might.
      // But delay updating the stream flow control until that stream has been
      // consumed
      updateConnectionFlowControl(byteCount)

/// info

If you already went through all the tutorial and came back to see more about types, a good resource is <a href="https://mypy.readthedocs.io/en/latest/cheat_sheet_py3.html" class="external-link" target="_blank">the "cheat sheet" from `mypy`</a>.

      }
    }

    streamsToClose?.forEach { stream ->
      ignoreIoExceptions {
        stream.close(streamCode, cause)
      }
    }

    // Close the writer to release its resources (such as deflaters).
    ignoreIoExceptions {
      writer.close()
    }

    // Cancel the socket to break out the reader thread, which will clean up after itself.
    ignoreIoExceptions {

        try {
            if (!isDisconnected() && this.usageCount.get() != 0) {
                log.warn("Transport was not properly released, performing emergency cleanup");
                // Force disconnect to prevent resource leaks
                try {
                    disconnect(true);
                } catch (Exception e) {
                    log.debug("Error during emergency transport disconnect", e);
                }

				"application/prs.plucker",
				"application/qsig",
				"application/reginfo+xml",
				"application/relax-ng-compact-syntax",
				"application/remote-printing",
				"application/resource-lists+xml",
				"application/resource-lists-diff+xml",
				"application/riscos",
				"application/rlmi+xml",
				"application/rls-services+xml",
				"application/rsd+xml",
				"application/rss+xml",
				"application/rtf",