}

	_, err = lkClient.RUnlock(t.Context(), dsync.LockArgs{})
	if err == nil {
		t.Fatal("Expected for RUnlock to fail")
	}

	_, err = lkClient.Unlock(t.Context(), dsync.LockArgs{})
	if err == nil {
		t.Fatal("Expected for Unlock to fail")
	}

Running on 0.0.0.0:8080 over http (CTRL + C to quit)
```

</div>

////

/// warning | Предупреждение

Не забудьте удалить опцию `--reload`, если ранее пользовались ею.

Включение опции `--reload` требует дополнительных ресурсов, влияет на стабильность работы приложения и может повлечь прочие неприятности.

        return OptionalEntity.empty();
    }

    /**
     * Stores or updates a dictionary file in the ConfigSync storage.
     * This method checks for concurrent modifications by comparing timestamps
     * and uploads the file content to the ConfigSync API.
     *
     * @param dictFile the dictionary file metadata to store
     * @param file the actual file containing the dictionary content

            // Then - if we get here without exception, the unlock/lock worked
            DfFinalTimeZoneProvider provider = getDBFluteSystemTimeZoneProvider();
            // Provider might be null due to reflection limitations, which is ok
            assertTrue("processDBFluteSystem executed without exception", true);
        } catch (Exception e) {
            fail("processDBFluteSystem should handle unlock/lock properly: " + e.getMessage());
        }

Najprostszy plik FastAPI może wyglądać tak:

{* ../../docs_src/first_steps/tutorial001.py *}

Skopiuj to do pliku `main.py`.

Uruchom serwer:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
<span style="color: green;">INFO</span>:     Started reloader process [28720]

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

아래처럼 앱을 만든다면:

{* ../../docs_src/first_steps/tutorial002.py hl[3] *}

이를 `main.py` 파일에 넣고, `uvicorn`을 아래처럼 호출해야 합니다:

<div class="termy">

```console
$ uvicorn main:my_awesome_api --reload

		debug.PrintStack()
		return metacache{}
	}

	// Grab a write lock, since we create one if we cannot find one.
	b.mu.Lock()
	defer b.mu.Unlock()

	// Check if exists already.
	if c, ok := b.caches[o.ID]; ok {
		c.lastHandout = time.Now()
		b.caches[o.ID] = c
		b.debugf("returning existing %v", o.ID)
		return c
	}

	if !o.Create {

                                        <la:link href="../uploadpage/${f:u(dictId)}"
                                                 styleClass="btn btn-success btn-xs">
                                            <em class="fa fa-upload">
                                            <la:message key="labels.dict_protwords_link_upload"/>
                                        </la:link>
                                    </div>

            reload(updater);
        }
    }

    /**
     * Reloads the synonym dictionary from its source file.
     *
     * @param updater An optional updater to apply changes during reload.
     * @throws DictionaryException if the dictionary file cannot be read.
     */
    protected void reload(final SynonymUpdater updater) {

                                                 styleClass="btn btn-success btn-xs ${f:h(editableClass)}">
                                            <em class="fa fa-upload">
                                            <la:message key="labels.dict_mapping_link_upload"/>
                                        </la:link>
                                    </div>