When you create a **FastAPI** application, there is a `webhooks` attribute that you can use to define *webhooks*, the same way you would define *path operations*, for example with `@app.webhooks.post()`.

```Python hl_lines="9-13  36-53"
{!../../../docs_src/openapi_webhooks/tutorial001.py!}
```

The webhooks that you define will end up in the **OpenAPI** schema and the automatic **docs UI**.

!!! info

scp://repo1.maven.org/home/projects/maven/repository-staging/snapshots/maven2 website scp://minotaur.apache.org/www/maven.apache.org/maven2/maven-plugin-api META-INF/maven/org.apache.maven/maven-plugin-api/pom.properties #Generated by Maven #Fri Oct 14 22:19:53 EST 2005 version=2.0 groupId=org.apache.maven artifactId=maven-plugin-api...

	// CLI: -A ISTIO_OUTPUT ! -o lo -p udp -m udp --dport 53 -j REDIRECT --to-port 15053
	//
	// DESC: If this is a UDP DNS request to a non-localhost resolver, send it to ztunnel DNS proxy port
	if redirectDNS {
		iptablesBuilder.AppendRule(
			iptableslog.UndefinedCommand, ChainInpodOutput, iptablesconstants.NAT,
			"!", "-o", "lo",
			"-p", "udp",
			"-m", "udp",
			"--dport", "53",
			"-j", "REDIRECT",

This part is pretty normal, most of the code is probably already familiar to you:

```Python hl_lines="9-13  36-53"
{!../../../docs_src/openapi_callbacks/tutorial001.py!}
```

!!! tip

endif
VERSION := $(VERSION_FROM_FILE)-dev
endif

export VERSION

# Base version of Istio image to use
BASE_VERSION ?= master-2024-05-08T18-51-53
ISTIO_BASE_REGISTRY ?= gcr.io/istio-release

export GO111MODULE ?= on
export GOPROXY ?= https://proxy.golang.org
export GOSUMDB ?= sum.golang.org

# If GOPATH is not set by the env, set it to a sane value

	_ = x[StateConnected-2]
	_ = x[StateConnectionError-3]
	_ = x[StateShutdown-4]
}

const stateName = "UnconnectedConnectingConnectedConnectionErrorShutdown"

var stateIndex = [...]uint8{0, 11, 21, 30, 45, 53}

func (i State) String() string {
	if i >= State(len(stateIndex)-1) {
		return "State(" + strconv.FormatInt(int64(i), 10) + ")"
	}
	return stateName[stateIndex[i]:stateIndex[i+1]]

- login: YuriiMotov
  count: 75
  avatarUrl: https://avatars.githubusercontent.com/u/109919500?u=e83a39697a2d33ab2ec9bfbced794ee48bc29cec&v=4
  url: https://github.com/YuriiMotov
- login: jgould22
  count: 53
  avatarUrl: https://avatars.githubusercontent.com/u/4335847?u=ed77f67e0bb069084639b24d812dbb2a2b1dc554&v=4
  url: https://github.com/jgould22
- login: JavierSanchezCastro
  count: 40

		// Tests on hierarchical key names as prefix.
		// Without delimteter the code should recurse into the prefix Dir.
		// Tests with prefix, but without delimiter (53-54).
		{"test-bucket-list-object", "Asia/India/", "", "", 10, resultCases[23], nil, true},
		{"test-bucket-list-object", "Asia", "", "", 10, resultCases[24], nil, true},
		// Tests with prefix and delimiter (55-57).

* Add docs for using [WebSockets with **FastAPI**](https://fastapi.tiangolo.com/advanced/websockets/). PR [#62](https://github.com/tiangolo/fastapi/pull/62).

## 0.6.3

* Add Favicons to docs. PR [#53](https://github.com/tiangolo/fastapi/pull/53).

## 0.6.2

with <code>x / y</code> truncated towards zero
(<a href="https://en.wikipedia.org/wiki/Modulo_operation">"truncated division"</a>).
</p>

<pre>
 x     y     x / y     x % y
 5     3       1         2
-5     3      -1        -2
 5    -3      -1         2
-5    -3       1        -2
</pre>

<p>
The one exception to this rule is that if the dividend <code>x</code> is