[[ From Client ]]                [[ From Server ]]

GET /jmap/ws/ HTTP/1.1
Host: server.example.com
Upgrade: websocket
Connection: Upgrade
Authorization: Basic Zm9vOmJhcg==
Sec-WebSocket-Key:
  dGhlIHNhbXBsZSBub25jZQ==
Sec-WebSocket-Protocol: jmap
Sec-WebSocket-Version: 13
Origin: https://www.example.com

                                 HTTP/1.1 101 Switching Protocols
                                 Upgrade: websocket
                                 Connection: Upgrade
                                 Sec-WebSocket-Accept:
                                   s3pPLMBiTxaQ9kYGzzhZRbK+xOo=
                                 Sec-WebSocket-Protocol: jmap

[WebSocket connection established]

WS_DATA
{
  "@type": "WebSocketPushEnable",
  "dataTypes": [ "Mailbox", "Email" ],
  "pushState": "aaa"
}

                                 WS_DATA
                                 {
                                   "@type": "StateChange",
                                   "changed": {
                                     "a456": {
                                       "Mailbox": "d35ecb040aab"
                                     }
                                   },
                                   "pushState": "bbb"
                                 }

WS_DATA
{
  "@type": "Request",
  "id": "R1",
  "using": [ "urn:ietf:params:jmap:core" ],
  "methodCalls": [
    [
      "Core/echo", {
        "hello": true,
        "high": 5
      },
      "b3ff"
    ]
  ]
}

                                 WS_DATA
                                 {
                                   "@type": "Response",
                                   "requestId": "R1",
                                   "methodResponses": [
                                     [
                                       "Core/echo", {
                                         "hello": true,
                                         "high": 5
                                       },
                                       "b3ff"
                                     ]
                                   ]
                                 }

WS_DATA
The quick brown fox jumps
 over the lazy dog.

                                 WS_DATA
                                 {
                                   "@type": "RequestError",
                                   "requestId": null,
                                   "type":
                             "urn:ietf:params:jmap:error:notJSON",
                                   "status": 400,
                                   "detail":
                             "The request did not parse as I-JSON."
                                 }

[A new email is received]

                                 WS_DATA
                                 {
                                   "@type": "StateChange",
                                   "changed": {
                                     "a123": {
                                       "Email": "0af7a512ce70"
                                     }
                                   }
                                   "pushState": "ccc"
                                 }

WS_CLOSE

                                 WS_CLOSE

[WebSocket connection closed]