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To gather useful information from the SDK, you can either use default SDK Logger or implement and assign a logger that the SDK will use to send log messages. Log messages are assigned one of five levels: DEBUG, INFO, WARNING, ERROR, and NONE. This allows simple and powerful filtering of log messages so that you can, for example, print debug messages to the local console and send error messages to an external aggregator.
KOTLIN
interface PrimerLogger {
  var logLevel: PrimerLogLevel
  fun log(primerLog: PrimerLog)
}

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Parameters

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override fun log(primerLog: PrimerLog)
Sealed interface PrimerLog defines various log types for the logging system.

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Implementing your own custom logger

To implement a logger, create a class that implements PrimerLogger, like so:
KOTLIN
class ExampleLogger : PrimerLogger {

  override var logLevel: PrimerLogLevel = PrimerLogLevel.DEBUG

  override fun log(primerLog: PrimerLog) {
    when (primerLog) {
      is PrimerLog.Debug -> Log.d(EXAMPLE_TAG, primerLog.message)
      is PrimerLog.Info -> Log.i(EXAMPLE_TAG, primerLog.message)
      is PrimerLog.Warning -> Log.w(EXAMPLE_TAG, primerLog.message)
      is PrimerLog.Error -> Log.e(EXAMPLE_TAG, primerLog.message, primerLog.throwable)
    }
    /* ... Your custom logging logic here ... */
  }

  private companion object {
    const val EXAMPLE_TAG = "EXAMPLE"
  }
}
Then assign an instance to the logger property:
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PrimerLogging.logger = ExampleLogger()
If you want to change the logs that you receive based on log level, set the logLevel property like so:
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// Only `WARNING` and `ERROR` level logs will be sent to your logger
PrimerLogging.logger.logLevel = PrimerLogLevel.WARNING
If you don’t want to receive any logs, set the log level to PrimerLogLevel.NONE.

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Default SDK logger

Note that the default behaviour of the default logger is not to send any logs at all. You can easily assign DEBUG or any other log level to the default logger by simply calling:
KOTLIN
PrimerLogging.logger.logLevel = PrimerLogLevel.DEBUG