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npmrc.html
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npmrc.html
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<!DOCTYPE html><html><head>
<meta charset="utf-8">
<title>npmrc</title>
<style>
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color: #24292e;
margin: 0;
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</style>
</head>
<body>
<div id="banner">
<div id="rainbar"></div>
<div id="logobar">
<svg class="logo" role="img" height="32" width="32" viewBox="0 0 700 700">
<polygon fill="#cb0000" points="0,700 700,700 700,0 0,0"></polygon>
<polygon fill="#ffffff" points="150,550 350,550 350,250 450,250 450,550 550,550 550,150 150,150"></polygon>
</svg>
<div class="title">
npm command-line interface
</div>
</div>
</div>
<section id="content">
<header class="title">
<h1 id="npmrc">npmrc</h1>
<span class="description">The npm config files</span>
</header>
<section id="table_of_contents">
<h2 id="table-of-contents">Table of contents</h2>
<div id="_table_of_contents"><ul><li><a href="#description">Description</a></li><li><a href="#files">Files</a></li><ul><li><a href="#comments">Comments</a></li><li><a href="#per-project-config-file">Per-project config file</a></li><li><a href="#per-user-config-file">Per-user config file</a></li><li><a href="#global-config-file">Global config file</a></li><li><a href="#built-in-config-file">Built-in config file</a></li></ul><li><a href="#auth-related-configuration">Auth related configuration</a></li><li><a href="#see-also">See also</a></li></ul></div>
</section>
<div id="_content"><h3 id="description">Description</h3>
<p>npm gets its config settings from the command line, environment variables,
and <code>npmrc</code> files.</p>
<p>The <code>npm config</code> command can be used to update and edit the contents of the
user and global npmrc files.</p>
<p>For a list of available configuration options, see
<a href="../using-npm/config.html">config</a>.</p>
<h3 id="files">Files</h3>
<p>The four relevant files are:</p>
<ul>
<li>per-project config file (/path/to/my/project/.npmrc)</li>
<li>per-user config file (~/.npmrc)</li>
<li>global config file ($PREFIX/etc/npmrc)</li>
<li>npm builtin config file (/path/to/npm/npmrc)</li>
</ul>
<p>All npm config files are an ini-formatted list of <code>key = value</code> parameters.
Environment variables can be replaced using <code>${VARIABLE_NAME}</code>. For
example:</p>
<pre lang="bash"><code>prefix = ${HOME}/.npm-packages
</code></pre>
<p>Each of these files is loaded, and config options are resolved in priority
order. For example, a setting in the userconfig file would override the
setting in the globalconfig file.</p>
<p>Array values are specified by adding "[]" after the key name. For example:</p>
<pre lang="bash"><code>key[] = "first value"
key[] = "second value"
</code></pre>
<h4 id="comments">Comments</h4>
<p>Lines in <code>.npmrc</code> files are interpreted as comments when they begin with a
<code>;</code> or <code>#</code> character. <code>.npmrc</code> files are parsed by
<a href="https://github.com/npm/ini">npm/ini</a>, which specifies this comment syntax.</p>
<p>For example:</p>
<pre lang="bash"><code># last modified: 01 Jan 2016
; Set a new registry for a scoped package
@myscope:registry=https://mycustomregistry.example.org
</code></pre>
<h4 id="per-project-config-file">Per-project config file</h4>
<p>When working locally in a project, a <code>.npmrc</code> file in the root of the
project (ie, a sibling of <code>node_modules</code> and <code>package.json</code>) will set
config values specific to this project.</p>
<p>Note that this only applies to the root of the project that you're running
npm in. It has no effect when your module is published. For example, you
can't publish a module that forces itself to install globally, or in a
different location.</p>
<p>Additionally, this file is not read in global mode, such as when running
<code>npm install -g</code>.</p>
<h4 id="per-user-config-file">Per-user config file</h4>
<p><code>$HOME/.npmrc</code> (or the <code>userconfig</code> param, if set in the environment or on
the command line)</p>
<h4 id="global-config-file">Global config file</h4>
<p><code>$PREFIX/etc/npmrc</code> (or the <code>globalconfig</code> param, if set above): This file
is an ini-file formatted list of <code>key = value</code> parameters. Environment
variables can be replaced as above.</p>
<h4 id="built-in-config-file">Built-in config file</h4>
<p><code>path/to/npm/itself/npmrc</code></p>
<p>This is an unchangeable "builtin" configuration file that npm keeps
consistent across updates. Set fields in here using the <code>./configure</code>
script that comes with npm. This is primarily for distribution maintainers
to override default configs in a standard and consistent manner.</p>
<h3 id="auth-related-configuration">Auth related configuration</h3>
<p>The settings <code>_auth</code>, <code>_authToken</code>, <code>username</code> and <code>_password</code> must all be
scoped to a specific registry. This ensures that <code>npm</code> will never send
credentials to the wrong host.</p>
<p>In order to scope these values, they must be prefixed by a URI fragment.
If the credential is meant for any request to a registry on a single host,
the scope may look like <code>//registry.npmjs.org/:</code>. If it must be scoped to a
specific path on the host that path may also be provided, such as
<code>//my-custom-registry.org/unique/path:</code>.</p>
<pre><code>; bad config
_authToken=MYTOKEN
; good config
@myorg:registry=https://somewhere-else.com/myorg
@another:registry=https://somewhere-else.com/another
//registry.npmjs.org/:_authToken=MYTOKEN
; would apply to both @myorg and @another
; //somewhere-else.com/:_authToken=MYTOKEN
; would apply only to @myorg
//somewhere-else.com/myorg/:_authToken=MYTOKEN1
; would apply only to @another
//somewhere-else.com/another/:_authToken=MYTOKEN2
</code></pre>
<h3 id="see-also">See also</h3>
<ul>
<li><a href="../configuring-npm/folders.html">npm folders</a></li>
<li><a href="../commands/npm-config.html">npm config</a></li>
<li><a href="../using-npm/config.html">config</a></li>
<li><a href="../configuring-npm/package-json.html">package.json</a></li>
<li><a href="../commands/npm.html">npm</a></li>
</ul>
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