if s3Error := checkRequestAuthType(ctx, r, policy.PutBucketPolicyAction, bucket, ""); s3Error != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

	// Before proceeding validate if bucket exists.
	_, err := objAPI.GetBucketInfo(ctx, bucket, BucketOptions{})
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	aclHeader := r.Header.Get(xhttp.AmzACL)

				}
				defer logger.AuditLog(r.Context(), w, r, mustGetClaimsFromToken(r))
				writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrAllAccessDisabled), r.URL)
				return
			}
		} else {
			// Validate bucket names if it is not empty
			if bucketName != "" && s3utils.CheckValidBucketNameStrict(bucketName) != nil {
				if ok {
					tc.FuncName = "handler.ValidRequest"
					tc.ResponseRecorder.LogErrBody = true
				}

    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final ListForm form) {
        saveToken();
        validate(form, messages -> {}, () -> asHtml(path_AdminError_AdminErrorJsp));
        return asListHtml();
    }

    protected HtmlResponse doSearch(final ListForm form) {
        validate(form, messages -> {}, this::asListHtml);

        if (StringUtil.isBlank(form.q)) {

                });
            });
        });
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {
        validate(form, messages -> {}, this::asListHtml);
        final String id = form.id;
        accessTokenService.getAccessToken(id).ifPresent(entity -> {
            copyBeanToBean(entity, form,

        }).renderWith(data -> {
            registerRoleTypeItems(data);
        });
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {
        validate(form, messages -> {}, this::asListHtml);
        final String id = form.id;
        labelTypeService.getLabelType(id).ifPresent(entity -> {
            copyBeanToBean(entity, form, copyOp -> {

```

</div>

Then go to the `/docs` UI, you will see that **FastAPI** is using these **models** to **document** the API, and it will use them to **serialize** and **validate** the data too.

<div class="screenshot">
<img src="/img/tutorial/sql-databases/image01.png">
</div>

## Update the App with Multiple Models

        }).renderWith(data -> {
            registerRolesAndLabels(data);
        });
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {
        validate(form, messages -> {}, this::asListHtml);
        final PermissionHelper permissionHelper = ComponentUtil.getPermissionHelper();
        final String id = form.id;
        fileConfigService.getFileConfig(id).ifPresent(entity -> {

                });
                form.crudMode = CrudMode.CREATE;
            });
        });
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {
        validate(form, messages -> {}, this::asListHtml);
        final String id = form.id;
        webConfigService.getWebConfig(id).ifPresent(entity -> {
            copyBeanToBean(entity, form, copyOp -> {

        "Cache-Control",
        "must-revalidate",
      )
    val cacheControl = parse(headers)
    assertThat(cacheControl.toString()).isEqualTo("max-age=12, must-revalidate")
  }

  @Test
  fun parsePragmaHeaderValueIsNotRetained() {
    val headers = headersOf("Pragma", "must-revalidate")
    val cacheControl = parse(headers)
    assertThat(cacheControl.toString()).isEqualTo("must-revalidate")
  }

  @Test

func TestObjectNewMultipartUpload(t *testing.T) {
	if runtime.GOOS == globalWindowsOSName {
		t.Skip()
	}
	ExecObjectLayerTest(t, testObjectNewMultipartUpload)
}

// Tests validate creation of new multipart upload instance.
func testObjectNewMultipartUpload(obj ObjectLayer, instanceType string, t TestErrHandler) {
	bucket := "minio-bucket"
	object := "minio-object"
	opts := ObjectOptions{}