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npm command-line interface
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<section id="content">
<header class="title">
<h1 id="npm-query">npm-query</h1>
<span class="description">Dependency selector query</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="#see-also">See Also</a></li></ul></div>
</section>

<div id="_content"><h3 id="synopsis">Synopsis</h3>
<pre><code class="language-bash">npm query &lt;selector&gt;
</code></pre>
<h3 id="description">Description</h3>
<p>The <code>npm query</code> command allows for usage of css selectors in order to retrieve
an array of dependency objects.</p>
<h3 id="piping-npm-query-to-other-commands">Piping npm query to other commands</h3>
<pre><code class="language-bash"># find all dependencies with postinstall scripts &amp; uninstall them
npm query ":attr(scripts, [postinstall])" | jq 'map(.name)|join("\n")' -r | xargs -I {} npm uninstall {}

# find all git dependencies &amp; explain who requires them
npm query ":type(git)" | jq 'map(.name)' | xargs -I {} npm why {}
</code></pre>
<h3 id="extended-use-cases--queries">Extended Use Cases &amp; Queries</h3>
<pre><code class="language-stylus">// all deps
*

// all direct deps
:root &gt; *

// direct production deps
:root &gt; .prod

// direct development deps
:root &gt; .dev

// any peer dep of a direct deps
:root &gt; * &gt; .peer

// any workspace dep
.workspace

// all workspaces that depend on another workspace
.workspace &gt; .workspace

// all workspaces that have peer deps
.workspace:has(.peer)

// any dep named "lodash"
// equivalent to [name="lodash"]
#lodash

// any deps named "lodash" &amp; within semver range ^"1.2.3"
#lodash@^1.2.3
// equivalent to...
[name="lodash"]:semver(^1.2.3)

// get the hoisted node for a given semver range
#lodash@^1.2.3:not(:deduped)

// querying deps with a specific version
#lodash@2.1.5
// equivalent to...
[name="lodash"][version="2.1.5"]

// has any deps
:has(*)

// deps with no other deps (ie. "leaf" nodes)
:empty

// manually querying git dependencies
[repository^=github:],
[repository^=git:],
[repository^=https://github.com],
[repository^=http://github.com],
[repository^=https://github.com],
[repository^=+git:...]

// querying for all git dependencies
:type(git)

// get production dependencies that aren't also dev deps
.prod:not(.dev)

// get dependencies with specific licenses
[license=MIT], [license=ISC]

// find all packages that have @ruyadorno as a contributor
:attr(contributors, [email=ruyadorno@github.com])
</code></pre>
<h3 id="example-response-output">Example Response Output</h3>
<ul>
<li>an array of dependency objects is returned which can contain multiple copies of the same package which may or may not have been linked or deduped</li>
</ul>
<pre><code class="language-json">[
  {
    "name": "",
    "version": "",
    "description": "",
    "homepage": "",
    "bugs": {},
    "author": {},
    "license": {},
    "funding": {},
    "files": [],
    "main": "",
    "browser": "",
    "bin": {},
    "man": [],
    "directories": {},
    "repository": {},
    "scripts": {},
    "config": {},
    "dependencies": {},
    "devDependencies": {},
    "optionalDependencies": {},
    "bundledDependencies": {},
    "peerDependencies": {},
    "peerDependenciesMeta": {},
    "engines": {},
    "os": [],
    "cpu": [],
    "workspaces": {},
    "keywords": [],
    ...
  },
  ...
</code></pre>
<h3 id="configuration">Configuration</h3>
<h4 id="global"><code>global</code></h4>
<ul>
<li>Default: false</li>
<li>Type: Boolean</li>
</ul>
<p>Operates in "global" mode, so that packages are installed into the <code>prefix</code>
folder instead of the current working directory. See
<a href="../configuring-npm/folders.html">folders</a> for more on the differences in behavior.</p>
<ul>
<li>packages are installed into the <code>{prefix}/lib/node_modules</code> folder, instead
of the current working directory.</li>
<li>bin files are linked to <code>{prefix}/bin</code></li>
<li>man pages are linked to <code>{prefix}/share/man</code></li>
</ul>
<h4 id="workspace"><code>workspace</code></h4>
<ul>
<li>Default:</li>
<li>Type: String (can be set multiple times)</li>
</ul>
<p>Enable running a command in the context of the configured workspaces of the
current project while filtering by running only the workspaces defined by
this configuration option.</p>
<p>Valid values for the <code>workspace</code> config are either:</p>
<ul>
<li>Workspace names</li>
<li>Path to a workspace directory</li>
<li>Path to a parent workspace directory (will result in selecting all
workspaces within that folder)</li>
</ul>
<p>When set for the <code>npm init</code> command, this may be set to the folder of a
workspace which does not yet exist, to create the folder and set it up as a
brand new workspace within the project.</p>
<p>This value is not exported to the environment for child processes.</p>
<h4 id="workspaces"><code>workspaces</code></h4>
<ul>
<li>Default: null</li>
<li>Type: null or Boolean</li>
</ul>
<p>Set to true to run the command in the context of <strong>all</strong> configured
workspaces.</p>
<p>Explicitly setting this to false will cause commands like <code>install</code> to
ignore workspaces altogether. When not set explicitly:</p>
<ul>
<li>Commands that operate on the <code>node_modules</code> tree (install, update, etc.)
will link workspaces into the <code>node_modules</code> folder. - Commands that do
other things (test, exec, publish, etc.) will operate on the root project,
<em>unless</em> one or more workspaces are specified in the <code>workspace</code> config.</li>
</ul>
<p>This value is not exported to the environment for child processes.</p>
<h4 id="include-workspace-root"><code>include-workspace-root</code></h4>
<ul>
<li>Default: false</li>
<li>Type: Boolean</li>
</ul>
<p>Include the workspace root when workspaces are enabled for a command.</p>
<p>When false, specifying individual workspaces via the <code>workspace</code> config, or
all workspaces via the <code>workspaces</code> flag, will cause npm to operate only on
the specified workspaces, and not on the root project.</p>
<p>This value is not exported to the environment for child processes.</p>
<h2 id="see-also">See Also</h2>
<ul>
<li><a href="../using-npm/dependency-selectors.html">dependency selectors</a></li>
</ul></div>

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