c# - ASP.Net5 get current Ilogger -

i using interfaces happens use microsoft.extensions.logging.ilogger.

i want know how instantiate 1 interface using ilogger noting iloggerfactory in

here have done don't know if right or not

services.addsingleton<iservicecache, cache>( iapp => new cache(_loggerfactory.createlogger("debug")) ); 

or can do:

#if debug     services.addsingleton<ilogger>(_loggerfactory.createlogger("debug")); #else     // here add logger release or whatever other mode #endif 

the ilogger injected automatically in dependent services. should enough:

services.addsingleton<iservicecache, cache>();