要使用Webhook功能，调用者只需在HTTP Headers中指定X-Job-UUID和X-Web-Hook即可。以上面创建Zone为例，使用Webhook的API版本为：

POST zstack/v1/zones

headers:

Authorization: OAuth 00d038b699b74e76a01705918d48d939
X-Job-UUID: d0345d3ddcae485f8170572b15a2b581
X-Web-Hook: http://127.0.0.1:8989/rest-webhook

body:

{
    "params": {
        "name": "Zone1",
        "description": "Test"
    }
}

API返回仍然是202返回码和一个轮询地址，但调用者无需再轮询。API执行成功后，结果会被推送到

http://127.0.0.1:8989/rest-webhook

POST http://127.0.0.1:8989/rest-webhook

headers:

X-Job-Success: true
X-Job-UUID: d0345d3ddcae485f8170572b15a2b581

body:

{
    "inventory": {
        "uuid": "f52fe55b64094ceb99b3893a238c4931",
        "name": "Zone1",
        "description": "Test",
        "state": "Enabled",
        "type": "zstack",
        "createDate": "Jan 1, 2017 9:31:07 AM",
        "lastOpDate": "Jan 1, 2017 9:31:07 AM"
    }
}