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How to Work with Scoped Packages

Requires npm version 2 or greater

Scopes are used to group related packages together, and to create a namespace, like a domain, for npm modules. This is explained in more detail here.

If a package's name begins with @, then it is a scoped package. The scope is everything in between the @ and the slash.

@scope/project-name

Each npm user has their own scope.

@username/project-name

You can find more in depth information about scopes in the CLI documentation.

How to Initialize a Scoped Package

To create a scoped package, you simply use a package name that starts with your scope.

{
  "name": "@username/project-name"
}

If you use npm init, you can add your scope as an option to that command.

npm init --scope=username

If you use the same scope all the time, you will probably want to set this option in your .npmrc file.

npm config set scope username

Publishing a Scoped Package

By default, scoped packages are private. To publish private modules, you need to be a paid private modules user.

Public scoped modules are free and don't require a paid subscription. To publish a public scoped module, set the access option when publishing it. This option will remain set for all subsequent publishes.

npm publish --access=public

Using a Scoped Package

To use a scoped package, simply include the scope wherever you use the package name.

In package.json:

{
  "dependencies": {
    "@username/project-name": "^1.0.0"
  }
}

On the command line:

npm install @username/project-name --save

In a require statement:

var projectName = require("@username/project-name")

For information about using scoped private modules, visit npmjs.com/private-modules.

Last modified February 17, 2018           Found a typo? Send a pull request!

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