useDiagnosticsLogger()

function useDiagnosticsLogger(customHandler?): {
  emitter: Emitter<Record<EventType, unknown>>;
  logger: GlobalLogger;
  logsStorage: Storage<StorageValue>;
}

Provides a logger configured for PowerSync diagnostics.

This composable creates a logger instance that is automatically configured for diagnostics recording. The logger stores logs in session storage and emits events for real-time log monitoring.

Parameters

Parameter	Type	Description
customHandler?	ILogHandler	Optional custom log handler to process log messages

Returns

{
  emitter: Emitter<Record<EventType, unknown>>;
  logger: GlobalLogger;
  logsStorage: Storage<StorageValue>;
}

An object containing:

• logger - The configured ILogHandler instance
• logsStorage - Storage instance for log persistence
• emitter - Event emitter for log events

Name	Type
emitter	Emitter<Record<EventType, unknown>>
logger	GlobalLogger
logsStorage	Storage<StorageValue>

Example

const { logger } = useDiagnosticsLogger()

// Logger is automatically configured for diagnostics
// Use it in your PowerSync setup if needed