Important: This documentation covers Yarn 2. For the 1.x doc, check classic.yarnpkg.com.
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yarn npm login

Store new login info to access the npm registry.

Usage

$> yarn npm login [-s,--scope #0] [--publish]

Examples

Login to the default registry :

yarn npm login

Login to the registry linked to the @my-scope registry :

yarn npm login --scope my-scope

Login to the publish registry for the current package :

yarn npm login --publish

Details

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).