* **Code asynchrone**
* **`async` et `await`**
* **Coroutines**

## Code asynchrone

Faire du code asynchrone signifie que le langage 💬 est capable de dire à l'ordinateur / au programme 🤖 qu'à un moment du code, il 🤖 devra attendre que *quelque chose d'autre* se termine autre part. Disons que ce *quelque chose d'autre* est appelé "fichier-lent" 📝.

À un moment donné, Swagger a été cédé à la Fondation Linux, puis a été rebaptisé OpenAPI.

C'est pourquoi, lorsqu'on parle de la version 2.0, il est courant de dire "Swagger", et pour la version 3+ "OpenAPI".

/// check | A inspiré **FastAPI** à

Adopter et utiliser une norme ouverte pour les spécifications des API, au lieu d'un schéma personnalisé.

		{name: "rootfile2", size: 10000},
		{name: "dir1/d1file", size: 2000},
		{name: "dir2/d2file", size: 300},
		{name: "dir2/d2file2", size: 300},
		{name: "dir2/d2file3/", size: 300},
		{name: "dir2/d2file4/", size: 300},
		{name: "dir2/d2file5", size: 300},
		{name: "dir1/dira/dafile", size: 100000},
		{name: "dir1/dira/dbfile", size: 200000},
		{name: "dir1/dira/dirasub/dcfile", size: 1000000},

            assertEquals(2, values.length);
            assertEquals("gcs://fess/dir1/dir2/", values[0]);
            assertEquals("gcs://fess/dir1/file2.txt", values[1]);
        }
        try (final ResponseData responseData = gcsClient.doGet("gcs://fess/dir1/dir2/")) {
            fail();
        } catch (ChildUrlsException e) {

        Path dir1 = usersDir.resolve("dir1");
        Files.createDirectory(dir1);
        Files.writeString(dir1.resolve("file2.txt"), "file2");
        Path dir2 = dir1.resolve("dir2");
        Files.createDirectory(dir2);
        Files.writeString(dir2.resolve("file3.txt"), "file3");
        Path dir3 = usersDir.resolve("dir3");
        Files.createDirectory(dir3);

    @Test
    public void testMultipleDirectories() {
        String dir1 = "/test/dir1";
        String dir2 = "/test/dir2";
        String dir3 = "/test/dir3";

        Smb2LeaseKey key1 = new Smb2LeaseKey();
        Smb2LeaseKey key2 = new Smb2LeaseKey();
        Smb2LeaseKey key3 = new Smb2LeaseKey();

        when(baseLeaseManager.requestLease(dir1, DirectoryLeaseState.DIRECTORY_READ_HANDLE)).thenReturn(key1);

            assertEquals(2, values.length);
            assertEquals("s3://fess/dir1/dir2/", values[0]);
            assertEquals("s3://fess/dir1/file2.txt", values[1]);
        }
        try (final ResponseData responseData = s3Client.doGet("s3://fess/dir1/dir2/")) {
            fail();
        } catch (ChildUrlsException e) {

        Path dir1 = usersDir.resolve("dir1");
        Files.createDirectory(dir1);
        Files.writeString(dir1.resolve("file2.txt"), "file2");
        Path dir2 = dir1.resolve("dir2");
        Files.createDirectory(dir2);
        Files.writeString(dir2.resolve("file3.txt"), "file3");
        Path dir3 = usersDir.resolve("dir3");
        Files.createDirectory(dir3);

            assertEquals(2, values.length);
            assertEquals("storage://fess/dir1/dir2/", values[0]);
            assertEquals("storage://fess/dir1/file2.txt", values[1]);
        }
        try (final ResponseData responseData = storageClient.doGet("storage://fess/dir1/dir2/")) {
            fail();
        } catch (ChildUrlsException e) {

	if err != nil {
		t.Fatalf("%s: <ERROR> %s", instanceType, err)
	}

	testCases := []struct {
		dir string
		err error
	}{
		{
			dir: "dir1/",
			err: ObjectNotFound{Bucket: bucketName, Object: "dir1/"},
		},
		{
			dir: "dir1/dir3/",