Substrate externalities abstraction
The externalities mainly provide access to storage and to registered extensions. Extensions are for example the keystore or the offchain externalities. These externalities are used to access the node from the runtime via the runtime interfaces.
This crate exposes the main
Macro for declaring an extension that usable with
Stores extensions that should be made available through the externalities.
Marker trait for types that should be registered as
Something that provides access to the
The Substrate externalities.
Extension for the
Set the given externalities while executing the given closure. To get access to the externalities
while executing the given closure
Execute the given closure with the currently set externalities.