Logger class

Logger API

The Background Geolocation SDK includes powerful logging features for debugging location-tracking problems. The SDK stores log-entries for a period of Config.logMaxDays (default 3). The volume of logging events inserted into the database is controlled via Config.logLevel.

Fetching the Logs:

Logs can be fetched from the SDK in three ways:

  1. getLog
  2. emailLog
  3. uploadLog

Inserting your own log messages

You can even insert your own log messages into the SDK's Log database using the following methods:

method logLevel icon
error ERROR ❗ī¸
warn WARNING ⚠ī¸
debug DEBUG 🐞
info INFO ℹī¸
notice INFO đŸ”ĩ 
BackgroundGeolocation.onLocation((Location location) {
  Logger.debug("Location received: $location");
});

Example Logs

09-19 11:12:18.716 ╔═════════════════════════════════════════════
09-19 11:12:18.716 ║ BackgroundGeolocation Service started
09-19 11:12:18.716 ╠═════════════════════════════════════════════
09-19 11:12:18.723 [c.t.l.BackgroundGeolocationService d]
09-19 11:12:18.723   ✅  Started in foreground
09-19 11:12:18.737 [c.t.l.ActivityRecognitionService a]
09-19 11:12:18.737   🎾  Start activity updates: 10000
09-19 11:12:18.761 [c.t.l.BackgroundGeolocationService k]
09-19 11:12:18.761   🔴  Stop heartbeat
09-19 11:12:18.768 [c.t.l.BackgroundGeolocationService a]
09-19 11:12:18.768   🎾  Start heartbeat (60)
09-19 11:12:18.778 [c.t.l.BackgroundGeolocationService a]
09-19 11:12:18.778   đŸ”ĩ  setPace: null → false
09-19 11:12:18.781 [c.t.l.adapter.TSConfig c] ℹī¸   Persist config
09-19 11:12:18.794 [c.t.locationmanager.util.b a]
09-19 11:12:18.794   ℹī¸  LocationAuthorization: Permission granted
09-19 11:12:18.842 [c.t.l.http.HttpService flush]
09-19 11:12:18.842 ╔═════════════════════════════════════════════
09-19 11:12:18.842 ║ HTTP Service
09-19 11:12:18.842 ╠═════════════════════════════════════════════
09-19 11:12:19.000 [c.t.l.BackgroundGeolocationService onActivityRecognitionResult] still (100%)
09-19 11:12:21.314 [c.t.l.l.SingleLocationRequest$2 onLocationResult]
09-19 11:12:21.314 ╔═════════════════════════════════════════════
09-19 11:12:21.314 ║ SingleLocationRequest: 1
09-19 11:12:21.314 ╠═════════════════════════════════════════════
09-19 11:12:21.314 ╟─ 📍  Location[fused 45.519239,-73.617058 hAcc=15]999923706055 vAcc=2 sAcc=??? bAcc=???
09-19 11:12:21.327 [c.t.l.l.TSLocationManager onSingleLocationResult]
09-19 11:12:21.327   đŸ”ĩ  Acquired motionchange position, isMoving: false
09-19 11:12:21.342 [c.t.l.l.TSLocationManager a] 15.243
09-19 11:12:21.405 [c.t.locationmanager.data.a.c persist]
09-19 11:12:21.405   ✅  INSERT: bca5acc8-e358-4d8f-827f-b8c0d556b7bb
09-19 11:12:21.423 [c.t.l.http.HttpService flush]
09-19 11:12:21.423 ╔═════════════════════════════════════════════
09-19 11:12:21.423 ║ HTTP Service
09-19 11:12:21.423 ╠═════════════════════════════════════════════
09-19 11:12:21.446 [c.t.locationmanager.data.a.c first]
09-19 11:12:21.446   ✅  Locked 1 records
09-19 11:12:21.454 [c.t.l.http.HttpService a]
09-19 11:12:21.454   đŸ”ĩ  HTTP POST: bca5acc8-e358-4d8f-827f-b8c0d556b7bb
09-19 11:12:22.083 [c.t.l.http.HttpService$a onResponse]
09-19 11:12:22.083   đŸ”ĩ  Response: 200
09-19 11:12:22.100 [c.t.locationmanager.data.a.c destroy]
09-19 11:12:22.100   ✅  DESTROY: bca5acc8-e358-4d8f-827f-b8c0d556b7bb
09-19 11:12:55.226 [c.t.l.BackgroundGeolocationService onActivityRecognitionResult] still (100%)

Constructors

Logger()

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

debug(String msg) → Future<void>
Inserts a debug log message into the SDK's log database
destroyLog() → Future<bool>
Destroy the entire contents of plugin's log database.
emailLog(String email, [SQLQuery? query]) → Future<bool>
Email the result of getLog using device's mail client. Provide an optional SQLQuery to contrain results between dates.
error(String msg) → Future<void>
Inserts an "error" log message into the SDK's log database
getLog([SQLQuery? query]) → Future<String>
Returns the contents of the log database as a String. Provide an optional SQLQuery to contrain results between dates.
info(String msg) → Future<void>
Inserts an "info" log message into the SDK's log database
notice(String msg) → Future<void>
Inserts a "notice" log message into the SDK's log database
uploadLog(String url, [SQLQuery? query]) → Future<bool>
Upload the result of getLog to provided url. Provide an optional SQLQuery to contrain results between dates. The file-upload request will attach your configured Config.headers for authentication.
warn(String msg) → Future<void>
Inserts a "warning" log message into the SDK's log database