public DbContext(ICursesService cursesService)
{
_dbSingleton = DbSingleton.GetInstanceAsync(cursesService)
.ConfigureAwait(false)
.GetAwaiter()
.GetResult();
}
public static async Task <DbSingleton> GetInstanceAsync(ICursesService cursesService)
{
await LazyInitializer(cursesService);
return(_lazyInstance.Value);
}
private static async Task LazyInitializer(ICursesService cursesService)
{
_lazyInstance = new Lazy <DbSingleton>(() => new DbSingleton(cursesService),
LazyThreadSafetyMode.ExecutionAndPublication);
_lazyInstance.Value.Valutes = await _lazyInstance.Value._cursesService.GetValutes();
}
private DbSingleton(ICursesService cursesService)
{
_cursesService = cursesService;
}