Background Location

You'll need to import the javascript file in your website before starting from this .

To retrieve device location even when app is in background state

Plain JS

//to start recieving location updates
window.WTN.backgroundLocation.start({
 apiUrl,
 timeout,
 data,
 backgroundIndicator : false,
 pauseAutomatically : true,
 distanceFilter : 0.0,
 desiredAccuracy : "best",
 activityType : "other",
})

//to stop recieving location updates
window.WTN.backgroundLocation.stop()
 
 

ES 6+

Call the method with the following data

apiUrl (Mandatory): The API endpoint that will be called using the POST method to send location data.

• Value Type: String

• Example: https://backgrounlocation.free.beeceptor.com/

timeout: The time interval between API calls, measured in milliseconds.

• Value Type: Number

• Example: 1000 milliseconds = 1 second

data (Optional): Extra data to send along with the location update. Useful for identifying users or adding metadata. Can also use query parameters.

• Value Type: JSON object

• Example: { "keyName": "value" }

backgroundIndicator (Optional, iOS Only): Modifies the iOS status bar to indicate that the app is using location services when in the background.

• Value Type: Boolean

• Default Value: false

pauseAutomatically (Optional, iOS Only): When set to "true," The location manager pauses updates (and powers down hardware) when location data is unlikely to change, improving battery life.

• Value Type: Boolean

• Default Value: true

distanceFilter: The minimum horizontal distance (in meters) a device must move before an update is generated.

• Value Type: Double

• Default Value: 0.0 meters

• Example: If set to 10.0, data is logged only after the device moves 10 meters.

desiredAccuracy (Optional, iOS Only): The desired accuracy of location data. Higher accuracy increases battery consumption.

• Value Type: String

• Default Value: best

• Possible Values:

  • best : The best accuracy possible (default).

  • bestForNavigation: Highest accuracy using additional sensor data for navigation apps.

  • tenMeters: Accurate to within 10 meters.

  • hundredMeters: Accurate to within 100 meters.

  • kilometer: Accurate to the nearest kilometer.

  • threekilometers: Accurate to the nearest 3 kilometers.

activityType (Optional, iOS Only): The user activity associated with location updates.

• Value Type: String

• Default Value: other

• Possible Values:

  • other: Unknown activity (default).

  • automotiveNavigation: Vehicular navigation for automobiles.

  • otherNavigation: Non-automobile vehicular navigation.

  • fitness: Tracking fitness activities (e.g., walking, running, cycling).

  • airborne: Tracking airborne activities.

Notes

• Foreground Behavior: Location updates are sent to both the callback function and apiUrl.

• Background Behavior: Location updates are sent only to apiUrl when the app is in the background.

Location Object

The location data sent to your API or callback function includes the following fields:

• latitude: Latitude in degrees.

• longitude: Longitude in degrees.

• altitude: Altitude in meters.

• timestamp: Time of the location update (milliseconds since Jan 1, 1970).

• data: The extra data provided in the start method.

• floor (iOS Only): The logical floor of the building.

• deviceID: Device identifier.

• playerId: OneSignal Player ID (if OneSignal is enabled).

• speed: Instantaneous speed of the device (meters per second).

• direction (iOS Only): Device pointing direction (e.g., N, NE, E, SE, S, SW, W, NW, or none).

• horizontalAccuracy (iOS Only): Radius of uncertainty for the location (in meters).

• verticalAccuracy: Validity and estimated uncertainty of altitude values (in meters).

---