curl -G -H "X-Auth-Token: ijFlJ1yfidXhwEYY284Anoq_iEsOeMMVCupzNhX22tB" \
          -H "X-User-Id: hw5DThnhQmxDWnavu" \
          -H "Content-type: application/json" \
          http://localhost:3000/api/v1/directory \
          --data-urlencode 'query={"text": "rocket", "type": "users", "workspace": "local"}'

{
    "result": [
        {
            "_id": "jRca8kibJx8NkLJxt",
            "createdAt": "2018-04-13T12:46:26.517Z",
            "emails": [
                {
                    "address": "user.test.1523623548558@rocket.chat",
                    "verified": false
                }
            ],
            "name": "EditedRealNameuser.test.1523623548558",
            "username": "editedusernameuser.test.1523623548558",
            "avatarETag": "6YbLtc4v9b4conXon"
        }
    ],
    "count": 1,
    "offset": 0,
    "total": 1,
    "success": true
}

curl -H "X-Auth-Token: ijFlJ1yfidXhwEYY284Anoq_iEsOeMMVCupzNhX22tB" \
          -H "X-User-Id: hw5DThnhQmxDWnavu" \
          -H "Content-type: application/json" \
 http://localhost:3000/api/v1/directory?query={"text": "gene", "type": "channels"}&count=1&offset=2

{
    "result": [
        {
            "_id": "GENERAL",
            "ts": "2018-05-15T19:10:54.689Z",
            "name": "general",
            "usernames": [
                "rocketchat.internal.admin.test",
                "editedusernameuser.test.1526941091574"
            ]
        }
    ],
    "count": 1,
    "offset": 2,
    "total": 4,
    "success": true
}