getOrRegisterSingletonAsync<T extends Object> method

Future<T> getOrRegisterSingletonAsync<T extends Object>(
  1. Future<T> instanceCreator()
)

Optimized method for async singleton registration.

Creates the async instance immediately and reuses it for all subsequent requests.

Implementation

Future<T> getOrRegisterSingletonAsync<T extends Object>(
        Future<T> Function() instanceCreator) =>
    getOrRegisterAsync<T>(instanceCreator, RegisterAs.singletonAsync);