curl -H "X-Auth-Token: 9HqLlyZOugoStsXCUfD_0YdwnNnunAJF8V47U3QHXSq" \
     -H "X-User-Id: aobEdbYhXfu5hkeqG" \
     http://localhost:3000/api/v1/im.files?roomId=ByehQjC44FwMeiLbX

curl -H "X-Auth-Token: 9HqLlyZOugoStsXCUfD_0YdwnNnunAJF8V47U3QHXSq" \
     -H "X-User-Id: aobEdbYhXfu5hkeqG" \
     http://localhost:3000/api/v1/im.files?username=user

{
    "files": [
        {
            "_id": "zchmBCtCEGeGRFrFw",
            "name": "images.jpeg",
            "size": 9778,
            "type": "image/jpeg",
            "rid": "ksKsKmrjvxzkzxkwwzFWhJbub88A9mLrAD",
            "description": "dafsd",
            "store": "GridFS:Uploads",
            "complete": true,
            "uploading": false,
            "extension": "jpeg",
            "progress": 1,
            "user": {
                "_id": "ksKsKmrjvxzkzxkww",
                "username": "rocket.cat",
                "name": "Rocket Cat"
            },
            "_updatedAt": "2018-03-08T17:36:09.846Z",
            "instanceId": "uZG54xuoKauKHykbQ",
            "etag": "mnqbLcmKAptJBEKrx",
            "path": "/ufs/GridFS:Uploads/zchmBCtCEGeGRFrFw/images.jpeg",
            "token": "787868e89B",
            "uploadedAt": "2018-03-08T17:36:09.913Z",
            "url": "/ufs/GridFS:Uploads/zchmBCtCEGeGRFrFw/images.jpeg"
        }
    ],
    "count": 1,
    "offset": 0,
    "total": 1,
    "success": true
}