Example post showing a story being posted to the Activity Stream.

activity-stream-http.txt

POST https://www.yammer.com/api/v1/activity.json HTTP/1.1
Authorization: Bearer REMOVED_TOKEN
Content-Type: application/json; charset=utf-8
Host: www.yammer.com
Content-Length: 405
Expect: 100-continue

{
    "activity": {
        "actor": {
            "name": "Brian Lyttle",
            "email": "[email protected]"
        },
        "action": "yammermvc:publish",
        "object": {
            "url": "http://localhost:33128/media/detail?id=34",
            "description": "dfdgfdgf",
            "video": {
                "width": 1,
                "height": 1
            },
            "type": "yammermvc:photo",
            "title": "fdgfdgf",
            "image": "https://mug0.assets-yammer.com/mugshot/images/75x75/LBZq1qTjmSd9XkzdkNJnRKCVGQD38MF6"
        },
        "private": "false",
        "message": "",
        "users": null
    }
}

HTTP/1.1 202 Accepted
Server: nginx
Date: Wed, 02 Oct 2013 19:41:10 GMT
Content-Type: application/json; charset=utf-8
Connection: keep-alive
Status: 202 Accepted
X-Robots-Tag: none
X-Content-Type-Options: nosniff
Strict-Transport-Security: max-age=31536000; includeSubDomains
Cache-Control: no-cache
X-UA-Compatible: IE=Edge,chrome=1
X-Date: 1380742870215
X-XSS-Protection: 1; mode=block
X-Runtime: 0.330480
Content-Length: 71

{
    "action_id": 1145749,
    "object_id": 353470174751746,
    "actor_id": 1491478840
}