====== Unit Messages ======
The request is intended to receive unit messages.

=== Request Example ===
<code php>&svc=get_unit_msgs&params=[
    {
        "id_unit": integer,
        "from": timestamp,
        "to": timestamp,
        "fields": "string, string, ..."
        "is_online": bool
    },
    ....
]</code>

=== Parameters ===
^ Parameter   ^ Description   ^
| id_unit | Unique Unit ID |
| from | Start time of unit messages |
| to | End time of unit messages |
| fields | List of required fields to recieve |
| is_online | Unit online |

=== Additional Information ===
Optional parameters:

fields - specify the individual fields of 'time,lat,lon,speed,course,height,sats,params,unit_type,unit_id,time_speed'.
Several units messages site.sdk/?login=demo&pass=demo&svc=get_unit_msgs&params=[{"id_unit":57,"from":1422599311,"to":1423466292},{"id_unit":82,"from":1422599311}]

Optional Parameter:
is_online - receive messages only from online

=== Server Response ===
== Result ==
<code php>[
    {
        "id":12615246, // Message ID
        "time":1516726445, // Time of message
        "lat":"53.909869", // Latitude
        "lon":"27.499587", // Longitude
        "speed":0, // Speed
        "course":0, // Movement direction
        "height":225, // Height above sea level
        "sats":0, // Number of satellites
        "params":"" // Parameters of message
    },
    ...
</code>