### Importe o `FastAPI` { #import-fastapi }

Você importa e cria uma classe `FastAPI` normalmente.

E podemos até declarar [dependências globais](dependencies/global-dependencies.md) que serão combinadas com as dependências para cada `APIRouter`:

{* ../../docs_src/bigger_applications/app_an_py310/main.py hl[1,3,7] title["app/main.py"] *}

import org.codelibs.fess.opensearch.log.cbean.cq.bs.BsSearchLogCQ;
import org.opensearch.search.aggregations.bucket.filter.FilterAggregationBuilder;
import org.opensearch.search.aggregations.bucket.global.GlobalAggregationBuilder;
import org.opensearch.search.aggregations.bucket.histogram.DateHistogramAggregationBuilder;
import org.opensearch.search.aggregations.bucket.histogram.HistogramAggregationBuilder;

            Doc(
                """
                A list of global dependencies, they will be applied to each
                *path operation*, including in sub-routers.

                Read more about it in the
                [FastAPI docs for Global Dependencies](https://fastapi.tiangolo.com/tutorial/dependencies/global-dependencies/).

                **Example**

                ```python

// EagerService to maintain consistency between client and worker. The
// context_id is initialized with a dummy value and is later set when the worker
// is initialized (either locally or remotely). The context_id can change during
// the process lifetime although this should cause the worker to be
// reinitialized (e.g. cleared caches) as well.
TF_CAPI_EXPORT extern uint64_t TFE_GetContextId(TFE_Context* ctx);

- The apimachinery util/net function used to detect the bind address `ResolveBindAddress()` takes into consideration global IP addresses on loopback interfaces when 1) the host has default routes, or 2) there are no global IPs on those interfaces in order to support more complex network scenarios like BGP Unnumbered RFC 5549 ([#95790](https://github.com/kubernetes/kubernetes/pull/95790), [@aojea](https://github.com/aojea))...

/// info | 情報

OAuth2 において「スコープ」は、必要な特定の権限を宣言する単なる文字列です。

`:` のような他の文字が含まれていても、URL であっても問題ありません。

それらの詳細は実装依存です。

OAuth2 にとっては、単に文字列に過ぎません。

///

## 全体像 { #global-view }

まず、メインの**チュートリアル - ユーザーガイド**にある [OAuth2（パスワード［ハッシュ化あり］）、Bearer と JWT トークン](../../tutorial/security/oauth2-jwt.md) の例から変更される部分を、スコープ付き OAuth2 を使って手早く見てみましょう。

import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsFileConfigCQ;
import org.opensearch.search.aggregations.bucket.filter.FilterAggregationBuilder;
import org.opensearch.search.aggregations.bucket.global.GlobalAggregationBuilder;
import org.opensearch.search.aggregations.bucket.histogram.HistogramAggregationBuilder;
import org.opensearch.search.aggregations.bucket.missing.MissingAggregationBuilder;

// https://www.iana.org/domains/root/db/glass.html
glass

// gle : Charleston Road Registry Inc.
// https://www.iana.org/domains/root/db/gle.html
gle

// global : Identity Digital Limited
// https://www.iana.org/domains/root/db/global.html
global

// globo : Globo Comunicação e Participações S.A
// https://www.iana.org/domains/root/db/globo.html
globo

// gmail : Charleston Road Registry Inc.

		}
		data := buf.String()
		if len(data) > maxSpecialFileSize {
			return ErrFieldTooLong
		}
		if err := tw.writeRawFile(name, data, flag, FormatPAX); err != nil || isGlobal {
			return err // Global headers return here
		}
	}

	// Pack the main header.
	var f formatter // Ignore errors since they are expected
	fmtStr := func(b []byte, s string) { f.formatString(b, toASCII(s)) }

          NodeDef* const node_def = graph_def.add_node();
          *node_def = node->def();
        }
      }
      *graph_def.mutable_library() = graph.flib_def().ToProto();
      if (flags::Global().more_stack_traces.value()) {
        *graph_def.mutable_debug_info() = graph.BuildDebugInfo();
      }
      session->graph->mu.unlock();
      status->status = session->session->Extend(std::move(graph_def));