WebSocket API

vATIS provides a websocket interface at ws://127.0.0.1:49082/ to receive ATIS updates and interact with vATIS. For an example of using the WebSocket interface see the Stream Deck actions for vATIS project. TypeScript type definitions for the messages are also available in that project.

Outgoing messages

The following messages are sent by vATIS to connected clients.

atis

Sent to a specific client in response to a getAtis message, or to all connected clients whenever a property on an ATIS changes. The following value properties are sent:

Property	Description	Type
altimeter	The formatted altimeter reading for the station.	string
atisLetter	The current ATIS letter.	string
atisType	The ATIS type.	AtisType
ceiling	The current lowest cloud layer that is broken or overcast. If there is no ceiling then this property is not returned.	Value
isNewAtis	True if the ATIS is new and has not been acknowledged by the user.	boolean
metar	The unparsed METAR for the station.	string
networkConnectionStatus	The status of the station’s network connection.	NetworkConnectionStatus
pressure	The current pressure, as a whole number (e.g. 2990).	Value
prevailingVisibility	The current visibility.	Value
station	The identifier for the station.	string
textAtis	The text version of the ATIS, if available.	string

Example message:

{
    "type": "atis",
    "value": {
        "networkConnectionStatus": "Connected",
        "textAtis": "KPDX ATIS INFO A 1853Z. 24009G14KT 6SM LIGHT RA BKN030 BKN039 OVC046 08/04 A3061 (THREE ZERO SIX ONE). SIMUL VIS APCHS IN USE RWYS 10L AND 10R. JET ACFT EXPT THE COLUMBIA VIS APCH. DEPTG RWYS 10L AND 10R. NOTAMS... PUSHBACK ONTO TWYS T AND K REQS ATC CLNC.....ADVS YOU HAVE INFO A.",
        "station": "KPDX",
        "atisType": "Combined",
        "atisLetter": "A",
        "metar": "KPDX 111853Z 26009G14KT 6SM -RA BKN030 BKN039 OVC046 08/04 A3061 RMK AO2 RAB45 SLP363 P0000 T00830039",
        "wind": "26009G14KT",
        "altimeter": "A3061",
        "pressure": {
            "actualValue": 3061,
            "actualUnit": "MercuryInch"
        },
        "isNewAtis": false,
        "ceiling": {
            "actualValue": 30,
            "actualUnit": "Feet"
        },
        "prevailingVisibility": {
            "actualValue": 6,
            "actualUnit": "StatuteMile"
        }
    }
}

Incoming messages

The following messages can be sent to vATIS to trigger state changes or to request state information.

getAtis

Requests the current ATIS for a specific station or all stations in the loaded profile. The response is an atis message for each matching station.

The following value properties are supported:

Property	Description	Type
atisType	The station type to return. Optional, if omitted defaults to Combined. Only supported when the station property is set. This enables requesting the specific Departure or Arrival ATIS for stations that publish separate ATIS information for arrivals and departures.	atisType
station	The identifier of the station to get the ATIS for. Optional. If omitted the current ATIS for all stations in the loaded profile will be returned.	string

Example message to request the ATIS for all stations in the current profile:

{
    "type": "getAtis"
}

Example message to request the ATIS for a specific station that publishes a combined ATIS:

{
    "type": "getAtis",
    "value": {
        "station": "KPDX"
    }
}

Example message to request the departure ATIS for a specific station that publishes a split ATIS:

{
    "type": "getAtis",
    "value": {
        "atisType": "Departure"
        "station": "KPDX",
    }
}

acknowledgeAtisUpdate

Acknowledges the ATIS update for a specific station or all stations, clearing the isNewAtis flag and turning off the flashing new ATIS letter in vATIS for the station(s).

The following value properties are supported:

Property	Description	Type
atisType	The station type to acknowledge. Optional, if omitted defaults to Combined. Only supported when the station property is set. This enables acknowledging the specific Departure or Arrival ATIS for stations that publish separate ATIS information for arrivals and departures.	atisType
station	The identifier of the station to acknowledge. Optional. If omitted all stations in the loaded profile will have the new ATIS acknowledged.	string

Example message to acknowledge the ATIS update for all stations in the current profile:

{
    "type": "acknowledgeAtisUpdate"
}

Example message to acknowledge the ATIS update for a specific station that publishes a combined ATIS:

{
    "type": "acknowledgeAtisUpdate",
    "value": {
        "station": "KPDX"
    }
}

Example message to acknowledge the ATIS update for a specific station that publishes a split ATIS:

{
    "type": "acknowledgeAtisUpdate",
    "value": {
        "atisType": "Departure"
        "station": "KPDX",
    }
}

Types

The following types are used in message properties.

NetworkConnectionStatus

Represents the current state of the station’s network connection. Values are:

• Connected
• Connecting
• Disconnected
• Observer

AtisType

Indicates whether the ATIS is combined, arrival, or departure. Values are:

• Arrival
• Combined
• Departure

Value

Indicates a value and the value’s unit.

Property	Description	Type
actualValue	The value.	Number
actualUnit	The unit.	Unit

Unit

Describes the unit for a given value. The possible values are:

• Degree
• DegreeCelsius
• Feet
• HectoPascal
• KilometerPerHour
• Knot
• MercuryInch
• Meter
• MeterPerSecond
• StatuteMile
• UnknownUnit