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The authentification is tied to the auth plugin you are using. The package restrictions also is handled by the Package Access.

The client authentification is handled by npm client itself. Once you login to the application:

npm adduser --registry http://localhost:4873

A token is generated in the npm configuration file hosted in your user home folder. For more information about .npmrc read the official documentation.

cat .npmrc

Anonymous publish

verdaccio allows you to enable anonymous publish. verdaccioallows you to enable anonymous publish, to achieve that you will need to set up correctly your packages access.


access: $anonymous
publish: $anonymous
proxy: npmjs

As is described on issue #212 until npm@5.3.0 and all minor releases won't allow you publish without a token.

Understanding Groups

The meaning of $all and $anonymous

As you know Verdaccio uses the htpasswd by default. That plugin does not implement the methods allow_access, allow_publish and allow_unpublish. Thus, Verdaccio will handle that in the following way:

  • If you are not logged in (you are anonymous), $all and $anonymous means exactly the same.
  • If you are logged in, $anonymous won't be part of your groups and $all will match any logged user. A new group $authenticated will be added to the list.

As a takeaway, $all will match all users, independently whether is logged or not.

The previous behavior only applies to the default authentication plugin. If you are using a custom plugin and such plugin implements allow_access, allow_publish or allow_unpublish, the resolution of the access depends on the plugin itself. Verdaccio will only set the default groups.

Let's recap:

  • logged: $all, $authenticated, + groups added by the plugin
  • anonymous (logged out): $all and $anonymous.

Default htpasswd

In order to simplify the setup, verdaccio use a plugin based on htpasswd. Since version v3.0.x the verdaccio-htpasswd plugin is used by default.

file: ./htpasswd
# Maximum amount of users allowed to register, defaults to "+inf".
# You can set this to -1 to disable registration.
#max_users: 1000
DateistringJa./htpasswdallfile that host the encrypted credentials
max_usersnumberNein1000allset limit of users

In case to decide do not allow user to login, you can set max_users: -1.