if doneCh == nil {
			return
		}

		// Indicate we are ready to write.
		doneCh <- err

		// Wait for channel to be closed so we don't race on writes.
		<-doneCh

		// Clear so we can be called multiple times without crashing.
		doneCh = nil
	}, &closeNotifier{rc: r.Body, done: bodyDoneCh}
}

// keepHTTPResponseAlive can be used to avoid timeouts with long storage

Abra seu navegador em [http://127.0.0.1:8000/items/5?q=somequery](http://127.0.0.1:8000/items/5?q=somequery).

Você verá a resposta JSON como:

```JSON
{"item_id": 5, "q": "somequery"}
```

Você acabou de criar uma API que:

* Recebe requisições HTTP nos _paths_ `/` e `/items/{item_id}`.
* Ambos _paths_ fazem operações `GET` (também conhecido como _métodos_ HTTP).

Mas ele ainda faz parte da mesma aplicação/web API **FastAPI** (faz parte do mesmo "pacote Python").

Você pode criar as *operações de rota* para esse módulo usando o `APIRouter`.

### Importe `APIRouter` { #import-apirouter }

Você o importa e cria uma "instância" da mesma maneira que faria com a classe `FastAPI`:

      shutdown(connectionCode)
    }

    var streamsToClose: Array<Http2Stream>? = null
    withLock {
      if (streams.isNotEmpty()) {
        streamsToClose = streams.values.toTypedArray()
        streams.clear()
      }
    }

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

   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public final void clear() {
    throw new UnsupportedOperationException();
  }

  /**
   * Returns an immutable collection of the values for the given key. If no mappings in the multimap

indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,

        }
        if (logger.isDebugEnabled()) {
            logger.debug("Deleted {} documents from URL list", deleteUrlList.size());
        }
        deleteUrlList.clear();
    }

    @Override
    public long getDocumentSize() {
        return indexUpdateCallback.getDocumentSize();
    }

    @Override
    public long getExecuteTime() {

        }
    }

    private static class TestIndexingHelper extends IndexingHelper {
        @Override
        public void sendDocuments(SearchEngineClient client, DocList docList) {
            docList.clear();
        }

        @Override
        public long calculateDocumentSize(Map<String, Object> map) {
            return 100L;
        }
    }

   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public final void clear() {
    throw new UnsupportedOperationException();
  }

  /**
   * Returns an immutable collection of the values for the given key. If no mappings in the multimap

---

Ahora que conocemos la diferencia entre los términos **proceso** y **programa**, sigamos hablando sobre implementaciones.

## Ejecución al Iniciar { #running-on-startup }