# OpenAPI Webhooks { #openapi-webhooks }

There are cases where you want to tell your API **users** that your app could call *their* app (sending a request) with some data, normally to **notify** of some type of **event**.

This means that instead of the normal process of your users sending requests to your API, it's **your API** (or your app) that could **send requests to their system** (to their API, their app).

This is normally called a **webhook**.

For example, you cannot put a Pydantic model in a `JSONResponse` without first converting it to a `dict` with all the data types (like `datetime`, `UUID`, etc) converted to JSON-compatible types.

For those cases, you can use the `jsonable_encoder` to convert your data before passing it to a response:

{* ../../docs_src/response_directly/tutorial001_py310.py hl[5:6,20:21] *}

/// note | Technical Details

# JSON Compatible Encoder { #json-compatible-encoder }

There are some cases where you might need to convert a data type (like a Pydantic model) to something compatible with JSON (like a `dict`, `list`, etc).

For example, if you need to store it in a database.

For that, **FastAPI** provides a `jsonable_encoder()` function.

## Using the `jsonable_encoder` { #using-the-jsonable-encoder }

		}
	}
}

// Test all s3 supported auth types.
func TestS3SupportedAuthType(t *testing.T) {
	type testCase struct {
		authT authType
		pass  bool
	}
	// List of all valid and invalid test cases.
	testCases := []testCase{
		// Test 1 - supported s3 type anonymous.
		{
			authT: authTypeAnonymous,
			pass:  true,
		},
		// Test 2 - supported s3 type presigned.
		{
			authT: authTypePresigned,

							Seq:    getSequences(2, 3, 0),
						},
					},
				},
				nil,
				[][]uint64{{16, 16, 16, 16, 16, 16, 16, 16}},
			},
			true,
		},
		// Supporting some advanced cases.
		{
			"http://minio{1...64}.mydomain.net/data",
			endpointSet{
				[]ellipses.ArgPattern{
					[]ellipses.Pattern{
						{
							Prefix: "http://minio",
							Suffix: ".mydomain.net/data",

 * maven can work out of the classloader, nexus plugins probably couldn't give the js and image
 * resources
 *
 * We need to look at Maven, and Nexus as use cases and figure out what each of them needs to be
 * able to do
 *
 * - now what is really the difference between this and loading a component in plexus - custom

### Варианты использования: внешний сервис { #use-cases-external-service }

Пример: у вас есть внешний провайдер аутентификации, к которому нужно обращаться.

Вы отправляете ему токен, а он возвращает аутентифицированного пользователя.

import static com.google.common.collect.Tables.transpose;

import com.google.common.annotations.GwtCompatible;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Test cases for {@link Tables#transpose}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public class TransposedTableTest extends AbstractTableTest<Character> {

  @Override

    assertFalse(
        "after removeAll(e), a collection should not contain e even "
            + "if it initially contained e more than once.",
        getList().contains(duplicate));
  }

  // All other cases are covered by CollectionRemoveAllTester.

import org.apache.maven.wagon.events.TransferListener;
import org.apache.maven.wagon.providers.file.FileWagon;
import org.apache.maven.wagon.resource.Resource;

/**
 * Wagon used for test cases that annotate some methods. Note that this is not a thread-safe implementation.
 */
public class TestFileWagon extends FileWagon {
    private TestTransferListener testTransferListener;
    private boolean insideGet;