4.3 Refresh an Idle Session Context

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This scenario describes refreshing an idle Session Context. To keep the server from timing out the Session Context, the client issues a PING request type, as described in section 2.2.6. Client creation of the request is described in section 3.1.5.3. Server handling of the response is described in section 3.2.5.3.

Client request

 POST <Autodiscover-provided endpoint> HTTP/1.1
 Host: <URL of the host server>
 Content-Length: 0
 Content-Type: application/mapi-http
 Cookie: <session context cookie>=<opaque string>
 Cookie: <return sequence cookie>=<opaque string>
 X-RequestType: PING
 X-ClientInfo: <opaque string>
 X-RequestId: <unique identifier>
 X-ClientApplication: <client version>

Server response

 HTTP/1.1 200 OK
 Content-Length: <length of META-TAGS, ADDITIONAL HEADERS>
 Content-Type: application/mapi-http
 X-RequestType: PING
 X-RequestId: <unique identifier>
 X-ResponseCode: 0
 X-ClientInfo: <opaque string>
 X-ServerApplication: <server version>
 X-ExpirationInfo: <milliseconds>
  
 PROCESSING<CRLF>
 DONE<CRLF>
 X-ResponseCode: 0<CRLF>
 X-ElapsedTime: <milliseconds>
 X-StartTime: <date/time>
 <CRLF>