yarn npm login

This command will ask you for your username, password, and 2FA One-Time-Password (when it applies). It will then modify your local configuration (in your home folder, never in the project itself) to reference the new tokens thus generated.

Adding the -s,--scope flag will cause the authentication to be done against whatever registry is configured for the associated scope (see also npmScopes).

Adding the --publish flag will cause the authentication to be done against the registry used when publishing the package (see also publishConfig.registry and npmPublishRegistry).

Options

Option	Description
--scope	Login to the registry configured for a given scope
--publish	Login to the publish registry
--web-login	Enable web-based login