yarn npm whoami

When using -s,--scope, the username printed will be the one that matches the authentication settings of the registry associated with the given scope (those settings can be overriden using the npmRegistries map, and the registry associated with the scope is configured via the npmScopes map).

When using --publish, the registry we’ll select will by default be the one used when publishing packages (publishConfig.registry or npmPublishRegistry if available, otherwise we’ll fallback to the regular npmRegistryServer).

Options

Option	Description
--scope	Get the username for a given scope
--publish	Get the username for the publish registry