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<!DOCTYPE html>
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<section id="command-line-engines">
<span id="engine-command"></span><h1>Command Line Engines<a class="headerlink" href="#command-line-engines" title="Link to this heading"></a></h1>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<ul class="simple">
<li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/command.py">command.py</a></p></li>
<li><p><a class="reference internal" href="../index.html#offline-engines"><span class="std std-ref">Offline Engines</span></a></p></li>
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<li><p><a class="reference internal" href="#configuration" id="id1">Configuration</a></p></li>
<li><p><a class="reference internal" href="#example" id="id2">Example</a></p></li>
<li><p><a class="reference internal" href="#implementations" id="id3">Implementations</a></p></li>
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<p class="sidebar-title">info</p>
<p>Initial sponsored by <a class="reference external" href="https://nlnet.nl/discovery">Search and Discovery Fund</a> of <a class="reference external" href="https://nlnet.nl/">NLnet Foundation</a>.</p>
</aside>
<p id="module-searx.engines.command">With <em>command engines</em> administrators can run engines to integrate arbitrary
shell commands.</p>
<div class="admonition attention">
<p class="admonition-title">Attention</p>
<p>When creating and enabling a <code class="docutils literal notranslate"><span class="pre">command</span></code> engine on a public instance, you
must be careful to avoid leaking private data.</p>
</div>
<p>The easiest solution is to limit the access by setting <code class="docutils literal notranslate"><span class="pre">tokens</span></code> as described
in section <a class="reference internal" href="../../../admin/settings/settings_engines.html#private-engines"><span class="std std-ref">Private Engines (tokens)</span></a>. The engine base is flexible. Only your
imagination can limit the power of this engine (and maybe security concerns).</p>
<section id="configuration">
<h2><a class="toc-backref" href="#id1" role="doc-backlink">Configuration</a><a class="headerlink" href="#configuration" title="Link to this heading"></a></h2>
<p>The following options are available:</p>
<dl>
<dt><code class="docutils literal notranslate"><span class="pre">command</span></code>:</dt><dd><p>A comma separated list of the elements of the command. A special token
<code class="docutils literal notranslate"><span class="pre">{{QUERY}}</span></code> tells where to put the search terms of the user. Example:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">[</span><span class="s">&#39;ls&#39;</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="s">&#39;-l&#39;</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="s">&#39;-h&#39;</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="s">&#39;{{QUERY}}&#39;</span><span class="p p-Indicator">]</span>
</pre></div>
</div>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">delimiter</span></code>:</dt><dd><p>A mapping containing a delimiter <code class="docutils literal notranslate"><span class="pre">char</span></code> and the <em>titles</em> of each element in
<code class="docutils literal notranslate"><span class="pre">keys</span></code>.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">parse_regex</span></code>:</dt><dd><p>A dict containing the regular expressions for each result key.</p>
</dd>
</dl>
<p><code class="docutils literal notranslate"><span class="pre">query_type</span></code>:</p>
<blockquote>
<div><p>The expected type of user search terms. Possible values: <code class="docutils literal notranslate"><span class="pre">path</span></code> and
<code class="docutils literal notranslate"><span class="pre">enum</span></code>.</p>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">path</span></code>:</dt><dd><p>Checks if the user provided path is inside the working directory. If not,
the query is not executed.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">enum</span></code>:</dt><dd><p>Is a list of allowed search terms. If the user submits something which is
not included in the list, the query returns an error.</p>
</dd>
</dl>
</div></blockquote>
<dl class="simple">
<dt><code class="docutils literal notranslate"><span class="pre">query_enum</span></code>:</dt><dd><p>A list containing allowed search terms if <code class="docutils literal notranslate"><span class="pre">query_type</span></code> is set to <code class="docutils literal notranslate"><span class="pre">enum</span></code>.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">working_dir</span></code>:</dt><dd><p>The directory where the command has to be executed. Default: <code class="docutils literal notranslate"><span class="pre">./</span></code>.</p>
</dd>
<dt><code class="docutils literal notranslate"><span class="pre">result_separator</span></code>:</dt><dd><p>The character that separates results. Default: <code class="docutils literal notranslate"><span class="pre">\n</span></code>.</p>
</dd>
</dl>
</section>
<section id="example">
<h2><a class="toc-backref" href="#id2" role="doc-backlink">Example</a><a class="headerlink" href="#example" title="Link to this heading"></a></h2>
<p>The example engine below can be used to find files with a specific name in the
configured working directory:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">find</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">command</span>
<span class="w"> </span><span class="nt">command</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&#39;find&#39;</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="s">&#39;.&#39;</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="s">&#39;-name&#39;</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="s">&#39;{{QUERY}}&#39;</span><span class="p p-Indicator">]</span>
<span class="w"> </span><span class="nt">query_type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">path</span>
<span class="w"> </span><span class="nt">shortcut</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">fnd</span>
<span class="w"> </span><span class="nt">delimiter</span><span class="p">:</span>
<span class="w"> </span><span class="nt">chars</span><span class="p">:</span><span class="w"> </span><span class="s">&#39;</span><span class="nv"> </span><span class="s">&#39;</span>
<span class="w"> </span><span class="nt">keys</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="s">&#39;line&#39;</span><span class="p p-Indicator">]</span>
</pre></div>
</div>
</section>
<section id="implementations">
<h2><a class="toc-backref" href="#id3" role="doc-backlink">Implementations</a><a class="headerlink" href="#implementations" title="Link to this heading"></a></h2>
</section>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.command.check_parsing_options">
<span class="sig-prename descclassname"><span class="pre">searx.engines.command.</span></span><span class="sig-name descname"><span class="pre">check_parsing_options</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">engine_settings</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/searx/engines/command.html#check_parsing_options"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.command.check_parsing_options" title="Link to this definition"></a></dt>
<dd><p>Checks if delimiter based parsing or regex parsing is configured correctly</p>
</dd></dl>
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<p class="sidebar-title">further read</p>
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<li><p><a class="reference external" href="https://en.wikipedia.org/wiki/NoSQL">NoSQL databases</a></p></li>
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<li><p><a class="reference internal" href="#extra-dependencies" id="id6">Extra Dependencies</a></p></li>
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<p>Initial sponsored by <a class="reference external" href="https://nlnet.nl/discovery">Search and Discovery Fund</a> of <a class="reference external" href="https://nlnet.nl/">NLnet Foundation</a>.</p>
</aside>
<p>The following <a class="reference external" href="https://en.wikipedia.org/wiki/NoSQL">NoSQL databases</a> are supported:</p>
<ul class="simple">
<li><p><a class="reference internal" href="#engine-valkey-server"><span class="std std-ref">Valkey Server</span></a></p></li>
<li><p><a class="reference internal" href="#engine-mongodb"><span class="std std-ref">MongoDB</span></a></p></li>
</ul>
<p>All of the engines above are just commented out in the <a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/settings.yml">settings.yml</a>, as you have to set various options and install
dependencies before using them.</p>
<p>By default, the engines use the <code class="docutils literal notranslate"><span class="pre">key-value</span></code> template for displaying results /
see <a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/templates/simple/result_templates/key-value.html">simple</a>
theme. If you are not satisfied with the original result layout, you can use
your own template, set <code class="docutils literal notranslate"><span class="pre">result_template</span></code> attribute to <code class="docutils literal notranslate"><span class="pre">{template_name}</span></code> and
place the templates at:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">searx</span><span class="o">/</span><span class="n">templates</span><span class="o">/</span><span class="p">{</span><span class="n">theme_name</span><span class="p">}</span><span class="o">/</span><span class="n">result_templates</span><span class="o">/</span><span class="p">{</span><span class="n">template_name</span><span class="p">}</span>
</pre></div>
</div>
<p>Furthermore, if you do not wish to expose these engines on a public instance, you
can still add them and limit the access by setting <code class="docutils literal notranslate"><span class="pre">tokens</span></code> as described in
section <a class="reference internal" href="../../../admin/settings/settings_engines.html#private-engines"><span class="std std-ref">Private Engines (tokens)</span></a>.</p>
<section id="extra-dependencies">
<h2><a class="toc-backref" href="#id6" role="doc-backlink">Extra Dependencies</a><a class="headerlink" href="#extra-dependencies" title="Link to this heading"></a></h2>
<p>For using <a class="reference internal" href="#engine-valkey-server"><span class="std std-ref">Valkey Server</span></a> or <a class="reference internal" href="#engine-mongodb"><span class="std std-ref">MongoDB</span></a> you need to
install additional packages in Python’s Virtual Environment of your SearXNG
instance. To switch into the environment (<a class="reference internal" href="../../../admin/installation-searxng.html#searxng-src"><span class="std std-ref">Install SearXNG &amp; dependencies</span></a>) you can use
<a class="reference internal" href="../../../utils/searxng.sh.html#searxng-sh"><span class="std std-ref">utils/searxng.sh</span></a>:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo utils/searxng.sh instance cmd bash
(searxng-pyenv)$ pip install ...
</pre></div>
</div>
</section>
<section id="configure-the-engines">
<h2><a class="toc-backref" href="#id7" role="doc-backlink">Configure the engines</a><a class="headerlink" href="#configure-the-engines" title="Link to this heading"></a></h2>
<p><a class="reference external" href="https://en.wikipedia.org/wiki/NoSQL">NoSQL databases</a> are used for storing arbitrary data without first defining
their structure.</p>
<section id="valkey-server">
<span id="engine-valkey-server"></span><h3><a class="toc-backref" href="#id8" role="doc-backlink">Valkey Server</a><a class="headerlink" href="#valkey-server" title="Link to this heading"></a></h3>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">pip</span> <span class="pre">install</span></code> <a class="reference external" href="https://github.com/andymccurdy/valkey-py#installation">valkey</a></p></li>
<li><p><a class="reference external" href="https://valkey.io/">valkey.io</a></p></li>
<li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/valkey_server.py">valkey_server.py</a></p></li>
</ul>
</aside>
<p id="module-searx.engines.valkey_server">Valkey is an open source (BSD licensed), in-memory data structure (key value
based) store. Before configuring the <code class="docutils literal notranslate"><span class="pre">valkey_server</span></code> engine, you must install
the dependency <a class="reference external" href="https://github.com/andymccurdy/valkey-py#installation">valkey</a>.</p>
<section id="configuration">
<h4>Configuration<a class="headerlink" href="#configuration" title="Link to this heading"></a></h4>
<p>Select a database to search in and set its index in the option <code class="docutils literal notranslate"><span class="pre">db</span></code>. You can
either look for exact matches or use partial keywords to find what you are
looking for by configuring <code class="docutils literal notranslate"><span class="pre">exact_match_only</span></code>.</p>
</section>
<section id="example">
<h4>Example<a class="headerlink" href="#example" title="Link to this heading"></a></h4>
<p>Below is an example configuration:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="c1"># Required dependency: valkey</span>
<span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">myvalkey</span>
<span class="w"> </span><span class="nt">shortcut </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">rds</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">valkey_server</span>
<span class="w"> </span><span class="nt">exact_match_only</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">false</span>
<span class="w"> </span><span class="nt">host</span><span class="p">:</span><span class="w"> </span><span class="s">&#39;127.0.0.1&#39;</span>
<span class="w"> </span><span class="nt">port</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">6379</span>
<span class="w"> </span><span class="nt">enable_http</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span>
<span class="w"> </span><span class="nt">password</span><span class="p">:</span><span class="w"> </span><span class="s">&#39;&#39;</span>
<span class="w"> </span><span class="nt">db</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">0</span>
</pre></div>
</div>
</section>
<section id="implementations">
<h4>Implementations<a class="headerlink" href="#implementations" title="Link to this heading"></a></h4>
</section>
</section>
<section id="engine-mongodb">
<span id="id2"></span><h3><a class="toc-backref" href="#id9" role="doc-backlink">MongoDB</a><a class="headerlink" href="#engine-mongodb" title="Link to this heading"></a></h3>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">pip</span> <span class="pre">install</span></code> <a class="reference external" href="https://github.com/mongodb/mongo-python-driver#installation">pymongo</a></p></li>
<li><p><a class="reference external" href="https://www.mongodb.com">MongoDB</a></p></li>
<li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/mongodb.py">mongodb.py</a></p></li>
</ul>
</aside>
<p id="module-searx.engines.mongodb"><a class="reference external" href="https://www.mongodb.com">MongoDB</a> is a document based database program that handles JSON like data.
Before configuring the <code class="docutils literal notranslate"><span class="pre">mongodb</span></code> engine, you must install the dependency
<a class="reference external" href="https://github.com/mongodb/mongo-python-driver#installation">pymongo</a>.</p>
<section id="id3">
<h4>Configuration<a class="headerlink" href="#id3" title="Link to this heading"></a></h4>
<p>In order to query <a class="reference external" href="https://www.mongodb.com">MongoDB</a>, you have to select a <code class="docutils literal notranslate"><span class="pre">database</span></code> and a
<code class="docutils literal notranslate"><span class="pre">collection</span></code>. Furthermore, you have to select a <code class="docutils literal notranslate"><span class="pre">key</span></code> that is going to be
searched. <a class="reference external" href="https://www.mongodb.com">MongoDB</a> also supports the option <code class="docutils literal notranslate"><span class="pre">exact_match_only</span></code>, so configure
it as you wish.</p>
</section>
<section id="id4">
<h4>Example<a class="headerlink" href="#id4" title="Link to this heading"></a></h4>
<p>Below is an example configuration for using a MongoDB collection:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="c1"># MongoDB engine</span>
<span class="c1"># Required dependency: pymongo</span>
<span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mymongo</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mongodb</span>
<span class="w"> </span><span class="nt">shortcut</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">md</span>
<span class="w"> </span><span class="nt">exact_match_only</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">false</span>
<span class="w"> </span><span class="nt">host</span><span class="p">:</span><span class="w"> </span><span class="s">&#39;127.0.0.1&#39;</span>
<span class="w"> </span><span class="nt">port</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">27017</span>
<span class="w"> </span><span class="nt">enable_http</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span>
<span class="w"> </span><span class="nt">results_per_page</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">20</span>
<span class="w"> </span><span class="nt">database</span><span class="p">:</span><span class="w"> </span><span class="s">&#39;business&#39;</span>
<span class="w"> </span><span class="nt">collection</span><span class="p">:</span><span class="w"> </span><span class="s">&#39;reviews&#39;</span><span class="w"> </span><span class="c1"># name of the db collection</span>
<span class="w"> </span><span class="nt">key</span><span class="p">:</span><span class="w"> </span><span class="s">&#39;name&#39;</span><span class="w"> </span><span class="c1"># key in the collection to search for</span>
</pre></div>
</div>
</section>
<section id="id5">
<h4>Implementations<a class="headerlink" href="#id5" title="Link to this heading"></a></h4>
</section>
</section>
</section>
</section>
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<section id="local-search-apis">
<h1>Local Search APIs<a class="headerlink" href="#local-search-apis" title="Link to this heading"></a></h1>
<aside class="sidebar">
<p class="sidebar-title">further read</p>
<ul class="simple">
<li><p><a class="reference external" href="https://docs.meilisearch.com/learn/what_is_meilisearch/comparison_to_alternatives.html">Comparison to alternatives</a></p></li>
</ul>
</aside>
<nav class="contents local" id="contents">
<ul class="simple">
<li><p><a class="reference internal" href="#module-searx.engines.meilisearch" id="id6">MeiliSearch</a></p></li>
<li><p><a class="reference internal" href="#module-searx.engines.elasticsearch" id="id7">Elasticsearch</a></p></li>
<li><p><a class="reference internal" href="#module-searx.engines.solr" id="id8">Solr</a></p></li>
</ul>
</nav>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<p>Initial sponsored by <a class="reference external" href="https://nlnet.nl/discovery">Search and Discovery Fund</a> of <a class="reference external" href="https://nlnet.nl/">NLnet Foundation</a>.</p>
</aside>
<p>Administrators might find themselves wanting to integrate locally running search
engines. The following ones are supported for now:</p>
<ul class="simple">
<li><p><a class="reference external" href="https://www.elastic.co/elasticsearch/">Elasticsearch</a></p></li>
<li><p><a class="reference external" href="https://www.meilisearch.com">Meilisearch</a></p></li>
<li><p><a class="reference external" href="https://solr.apache.org">Solr</a></p></li>
</ul>
<p>Each search engine is powerful, capable of full-text search. All of the engines
above are added to <code class="docutils literal notranslate"><span class="pre">settings.yml</span></code> just commented out, as you have to
<code class="docutils literal notranslate"><span class="pre">base_url</span></code> for all them.</p>
<p>Please note that if you are not using HTTPS to access these engines, you have to
enable HTTP requests by setting <code class="docutils literal notranslate"><span class="pre">enable_http</span></code> to <code class="docutils literal notranslate"><span class="pre">True</span></code>.</p>
<p>Furthermore, if you do not want to expose these engines on a public instance,
you can still add them and limit the access by setting <code class="docutils literal notranslate"><span class="pre">tokens</span></code> as described
in section <a class="reference internal" href="../../../admin/settings/settings_engines.html#private-engines"><span class="std std-ref">Private Engines (tokens)</span></a>.</p>
<section id="module-searx.engines.meilisearch">
<span id="meilisearch"></span><span id="engine-meilisearch"></span><h2><a class="toc-backref" href="#id6" role="doc-backlink">MeiliSearch</a><a class="headerlink" href="#module-searx.engines.meilisearch" title="Link to this heading"></a></h2>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<ul class="simple">
<li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/meilisearch.py">meilisearch.py</a></p></li>
<li><p><a class="reference external" href="https://www.meilisearch.com">MeiliSearch</a></p></li>
<li><p><a class="reference external" href="https://docs.meilisearch.com/">MeiliSearch Documentation</a></p></li>
<li><p><a class="reference external" href="https://docs.meilisearch.com/learn/getting_started/installation.html">Install MeiliSearch</a></p></li>
</ul>
</aside>
<p><a class="reference external" href="https://www.meilisearch.com">MeiliSearch</a> is aimed at individuals and small companies. It is designed for
small-scale (less than 10 million documents) data collections. E.g. it is great
for storing web pages you have visited and searching in the contents later.</p>
<p>The engine supports faceted search, so you can search in a subset of documents
of the collection. Furthermore, you can search in <a class="reference external" href="https://www.meilisearch.com">MeiliSearch</a> instances that
require authentication by setting <a class="reference external" href="https://www.meilisearch.com/docs/reference/api/overview#authorization">auth_key</a>.</p>
<section id="example">
<h3>Example<a class="headerlink" href="#example" title="Link to this heading"></a></h3>
<p>Here is a simple example to query a Meilisearch instance:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">meilisearch</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">meilisearch</span>
<span class="w"> </span><span class="nt">shortcut</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mes</span>
<span class="w"> </span><span class="nt">base_url</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">http://localhost:7700</span>
<span class="w"> </span><span class="nt">index</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my-index</span>
<span class="w"> </span><span class="nt">enable_http</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span>
<span class="w"> </span><span class="c1"># auth_key: Bearer XXXXX</span>
</pre></div>
</div>
</section>
</section>
<section id="module-searx.engines.elasticsearch">
<span id="elasticsearch"></span><span id="engine-elasticsearch"></span><h2><a class="toc-backref" href="#id7" role="doc-backlink">Elasticsearch</a><a class="headerlink" href="#module-searx.engines.elasticsearch" title="Link to this heading"></a></h2>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<ul class="simple">
<li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/elasticsearch.py">elasticsearch.py</a></p></li>
<li><p><a class="reference external" href="https://www.elastic.co/elasticsearch/">Elasticsearch</a></p></li>
<li><p><a class="reference external" href="https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html">Elasticsearch Guide</a></p></li>
<li><p><a class="reference external" href="https://www.elastic.co/guide/en/elasticsearch/reference/current/install-elasticsearch.html">Install Elasticsearch</a></p></li>
</ul>
</aside>
<p><a class="reference external" href="https://www.elastic.co/elasticsearch/">Elasticsearch</a> supports numerous ways to query the data it is storing. At the
moment the engine supports the most popular search methods (<code class="docutils literal notranslate"><span class="pre">query_type</span></code>):</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">match</span></code>,</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">simple_query_string</span></code>,</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">term</span></code> and</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">terms</span></code>.</p></li>
</ul>
<p>If none of the methods fit your use case, you can select <code class="docutils literal notranslate"><span class="pre">custom</span></code> query type
and provide the JSON payload to submit to Elasticsearch in
<code class="docutils literal notranslate"><span class="pre">custom_query_json</span></code>.</p>
<section id="id3">
<h3>Example<a class="headerlink" href="#id3" title="Link to this heading"></a></h3>
<p>The following is an example configuration for an <a class="reference external" href="https://www.elastic.co/elasticsearch/">Elasticsearch</a> instance with
authentication configured to read from <code class="docutils literal notranslate"><span class="pre">my-index</span></code> index.</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">elasticsearch</span>
<span class="w"> </span><span class="nt">shortcut</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">els</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">elasticsearch</span>
<span class="w"> </span><span class="nt">base_url</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">http://localhost:9200</span>
<span class="w"> </span><span class="nt">username</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">elastic</span>
<span class="w"> </span><span class="nt">password</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">changeme</span>
<span class="w"> </span><span class="nt">index</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my-index</span>
<span class="w"> </span><span class="nt">query_type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">match</span>
<span class="w"> </span><span class="c1"># custom_query_json: &#39;{ ... }&#39;</span>
<span class="w"> </span><span class="nt">enable_http</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span>
</pre></div>
</div>
</section>
</section>
<section id="module-searx.engines.solr">
<span id="solr"></span><span id="engine-solr"></span><h2><a class="toc-backref" href="#id8" role="doc-backlink">Solr</a><a class="headerlink" href="#module-searx.engines.solr" title="Link to this heading"></a></h2>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<ul class="simple">
<li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/solr.py">solr.py</a></p></li>
<li><p><a class="reference external" href="https://solr.apache.org">Solr</a></p></li>
<li><p><a class="reference external" href="https://solr.apache.org/resources.html">Solr Resources</a></p></li>
<li><p><a class="reference external" href="https://solr.apache.org/guide/installing-solr.html">Install Solr</a></p></li>
</ul>
</aside>
<p><a class="reference external" href="https://solr.apache.org">Solr</a> is a popular search engine based on Lucene, just like <a class="reference external" href="https://www.elastic.co/elasticsearch/">Elasticsearch</a>. But
instead of searching in indices, you can search in collections.</p>
<section id="id5">
<h3>Example<a class="headerlink" href="#id5" title="Link to this heading"></a></h3>
<p>This is an example configuration for searching in the collection
<code class="docutils literal notranslate"><span class="pre">my-collection</span></code> and get the results in ascending order.</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">solr</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">solr</span>
<span class="w"> </span><span class="nt">shortcut</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">slr</span>
<span class="w"> </span><span class="nt">base_url</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">http://localhost:8983</span>
<span class="w"> </span><span class="nt">collection</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my-collection</span>
<span class="w"> </span><span class="nt">sort</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">asc</span>
<span class="w"> </span><span class="nt">enable_http</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">true</span>
</pre></div>
</div>
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<section id="sql-engines">
<span id="id1"></span><h1>SQL Engines<a class="headerlink" href="#sql-engines" title="Link to this heading"></a></h1>
<aside class="sidebar">
<p class="sidebar-title">further read</p>
<ul class="simple">
<li><p><a class="reference external" href="https://www.sqlite.org/index.html">SQLite</a></p></li>
<li><p><a class="reference external" href="https://www.postgresql.org">PostgreSQL</a></p></li>
<li><p><a class="reference external" href="https://www.mysql.com">MySQL</a></p></li>
</ul>
</aside>
<nav class="contents local" id="contents">
<ul class="simple">
<li><p><a class="reference internal" href="#extra-dependencies" id="id11">Extra Dependencies</a></p></li>
<li><p><a class="reference internal" href="#configure-the-engines" id="id12">Configure the engines</a></p>
<ul>
<li><p><a class="reference internal" href="#engine-sqlite" id="id13">SQLite</a></p></li>
<li><p><a class="reference internal" href="#engine-postgresql" id="id14">PostgreSQL</a></p></li>
<li><p><a class="reference internal" href="#engine-mysql-server" id="id15">MySQL</a></p></li>
<li><p><a class="reference internal" href="#mariadb" id="id16">MariaDB</a></p></li>
</ul>
</li>
</ul>
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<aside class="sidebar">
<p class="sidebar-title">info</p>
<p>Initial sponsored by <a class="reference external" href="https://nlnet.nl/discovery">Search and Discovery Fund</a> of <a class="reference external" href="https://nlnet.nl/">NLnet Foundation</a>.</p>
</aside>
<p>With the <em>SQL engines</em> you can bind SQL databases into SearXNG. The following
Relational Database Management System (RDBMS) are supported:</p>
<ul class="simple">
<li><p><a class="reference internal" href="#engine-sqlite"><span class="std std-ref">SQLite</span></a></p></li>
<li><p><a class="reference internal" href="#engine-postgresql"><span class="std std-ref">PostgreSQL</span></a></p></li>
<li><p><a class="reference internal" href="#engine-mysql-server"><span class="std std-ref">MySQL</span></a> &amp; <a class="reference internal" href="#engine-mariadb-server"><span class="std std-ref">MariaDB</span></a></p></li>
</ul>
<p>All of the engines above are just commented out in the <a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/settings.yml">settings.yml</a>, as you have to set the required attributes for the
engines, e.g. <code class="docutils literal notranslate"><span class="pre">database:</span></code> …</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">...</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">{</span><span class="nv">sqlite|postgresql|mysql_server</span><span class="p p-Indicator">}</span>
<span class="w"> </span><span class="nt">database</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">...</span>
<span class="w"> </span><span class="nt">result_template</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">{</span><span class="nv">template_name</span><span class="p p-Indicator">}</span>
<span class="w"> </span><span class="nt">query_str</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">...</span>
</pre></div>
</div>
<p>By default, the engines use the <code class="docutils literal notranslate"><span class="pre">key-value</span></code> template for displaying results /
see <a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/templates/simple/result_templates/key-value.html">simple</a>
theme. If you are not satisfied with the original result layout, you can use
your own template, set <code class="docutils literal notranslate"><span class="pre">result_template</span></code> attribute to <code class="docutils literal notranslate"><span class="pre">{template_name}</span></code> and
place the templates at:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">searx</span><span class="o">/</span><span class="n">templates</span><span class="o">/</span><span class="p">{</span><span class="n">theme_name</span><span class="p">}</span><span class="o">/</span><span class="n">result_templates</span><span class="o">/</span><span class="p">{</span><span class="n">template_name</span><span class="p">}</span>
</pre></div>
</div>
<p>If you do not wish to expose these engines on a public instance, you can still
add them and limit the access by setting <code class="docutils literal notranslate"><span class="pre">tokens</span></code> as described in section
<a class="reference internal" href="../../../admin/settings/settings_engines.html#private-engines"><span class="std std-ref">Private Engines (tokens)</span></a>.</p>
<section id="extra-dependencies">
<h2><a class="toc-backref" href="#id11" role="doc-backlink">Extra Dependencies</a><a class="headerlink" href="#extra-dependencies" title="Link to this heading"></a></h2>
<p>For using <a class="reference internal" href="#engine-postgresql"><span class="std std-ref">PostgreSQL</span></a> or <a class="reference internal" href="#engine-mysql-server"><span class="std std-ref">MySQL</span></a> you need to
install additional packages in Python’s Virtual Environment of your SearXNG
instance. To switch into the environment (<a class="reference internal" href="../../../admin/installation-searxng.html#searxng-src"><span class="std std-ref">Install SearXNG &amp; dependencies</span></a>) you can use
<a class="reference internal" href="../../../utils/searxng.sh.html#searxng-sh"><span class="std std-ref">utils/searxng.sh</span></a>:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo utils/searxng.sh instance cmd bash
(searxng-pyenv)$ pip install ...
</pre></div>
</div>
</section>
<section id="configure-the-engines">
<h2><a class="toc-backref" href="#id12" role="doc-backlink">Configure the engines</a><a class="headerlink" href="#configure-the-engines" title="Link to this heading"></a></h2>
<p>The configuration of the new database engines are similar. You must put a valid
SQL-SELECT query in <code class="docutils literal notranslate"><span class="pre">query_str</span></code>. At the moment you can only bind at most one
parameter in your query. By setting the attribute <code class="docutils literal notranslate"><span class="pre">limit</span></code> you can define how
many results you want from the SQL server. Basically, it is the same as the
<code class="docutils literal notranslate"><span class="pre">LIMIT</span></code> keyword in SQL.</p>
<p>Please, do not include <code class="docutils literal notranslate"><span class="pre">LIMIT</span></code> or <code class="docutils literal notranslate"><span class="pre">OFFSET</span></code> in your SQL query as the engines
rely on these keywords during paging. If you want to configure the number of
returned results use the option <code class="docutils literal notranslate"><span class="pre">limit</span></code>.</p>
<section id="engine-sqlite">
<span id="id2"></span><h3><a class="toc-backref" href="#id13" role="doc-backlink">SQLite</a><a class="headerlink" href="#engine-sqlite" title="Link to this heading"></a></h3>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<ul class="simple">
<li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/sqlite.py">sqlite.py</a></p></li>
</ul>
</aside>
<p id="module-searx.engines.sqlite">SQLite is a small, fast and reliable SQL database engine. It does not require
any extra dependency.</p>
<section id="configuration">
<h4>Configuration<a class="headerlink" href="#configuration" title="Link to this heading"></a></h4>
<p>The engine has the following (additional) settings:</p>
<ul class="simple">
<li><p><a class="reference internal" href="#searx.engines.sqlite.result_type" title="searx.engines.sqlite.result_type"><code class="xref py py-obj docutils literal notranslate"><span class="pre">result_type</span></code></a></p></li>
</ul>
</section>
<section id="example">
<h4>Example<a class="headerlink" href="#example" title="Link to this heading"></a></h4>
<p>To demonstrate the power of database engines, here is a more complex example
which reads from a <a class="reference external" href="https://mediathekview.de/">MediathekView</a> (DE) movie database. For this example of the
SQLite engine download the database:</p>
<ul class="simple">
<li><p><a class="reference external" href="https://liste.mediathekview.de/filmliste-v2.db.bz2">https://liste.mediathekview.de/filmliste-v2.db.bz2</a></p></li>
</ul>
<p>and unpack into <code class="docutils literal notranslate"><span class="pre">searx/data/filmliste-v2.db</span></code>. To search the database use e.g
Query to test: <code class="docutils literal notranslate"><span class="pre">!mediathekview</span> <span class="pre">concert</span></code></p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mediathekview</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">sqlite</span>
<span class="w"> </span><span class="nt">shortcut</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mediathekview</span>
<span class="w"> </span><span class="nt">categories</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="nv">general</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="nv">videos</span><span class="p p-Indicator">]</span>
<span class="w"> </span><span class="nt">result_type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">MainResult</span>
<span class="w"> </span><span class="nt">database</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">searx/data/filmliste-v2.db</span>
<span class="w"> </span><span class="nt">query_str</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">&gt;-</span>
<span class="w"> </span><span class="no">SELECT title || &#39; (&#39; || time(duration, &#39;unixepoch&#39;) || &#39;)&#39; AS title,</span>
<span class="w"> </span><span class="no">COALESCE( NULLIF(url_video_hd,&#39;&#39;), NULLIF(url_video_sd,&#39;&#39;), url_video) AS url,</span>
<span class="w"> </span><span class="no">description AS content</span>
<span class="w"> </span><span class="no">FROM film</span>
<span class="w"> </span><span class="no">WHERE title LIKE :wildcard OR description LIKE :wildcard</span>
<span class="w"> </span><span class="no">ORDER BY duration DESC</span>
</pre></div>
</div>
</section>
<section id="implementations">
<h4>Implementations<a class="headerlink" href="#implementations" title="Link to this heading"></a></h4>
</section>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.sqlite.database">
<span class="sig-prename descclassname"><span class="pre">searx.engines.sqlite.</span></span><span class="sig-name descname"><span class="pre">database</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.sqlite.database" title="Link to this definition"></a></dt>
<dd><p>Filename of the SQLite DB.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.sqlite.query_str">
<span class="sig-prename descclassname"><span class="pre">searx.engines.sqlite.</span></span><span class="sig-name descname"><span class="pre">query_str</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.sqlite.query_str" title="Link to this definition"></a></dt>
<dd><p>SQL query that returns the result items.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.sqlite.result_type">
<span class="sig-prename descclassname"><span class="pre">searx.engines.sqlite.</span></span><span class="sig-name descname"><span class="pre">result_type</span></span><em class="property"><span class="p"><span class="pre">:</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/typing.html#typing.Literal" title="(in Python v3.13)"><span class="pre">Literal</span></a><span class="p"><span class="pre">[</span></span><span class="s"><span class="pre">'MainResult'</span></span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="s"><span class="pre">'KeyValue'</span></span><span class="p"><span class="pre">]</span></span></em><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'KeyValue'</span></em><a class="headerlink" href="#searx.engines.sqlite.result_type" title="Link to this definition"></a></dt>
<dd><p>The result type can be <code class="xref py py-obj docutils literal notranslate"><span class="pre">MainResult</span></code> or <code class="xref py py-obj docutils literal notranslate"><span class="pre">KeyValue</span></code>.</p>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.sqlite.sqlite_cursor">
<span class="sig-prename descclassname"><span class="pre">searx.engines.sqlite.</span></span><span class="sig-name descname"><span class="pre">sqlite_cursor</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/searx/engines/sqlite.html#sqlite_cursor"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.sqlite.sqlite_cursor" title="Link to this definition"></a></dt>
<dd><p>Implements a <a class="reference external" href="https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager" title="(in Python v3.13)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Context</span> <span class="pre">Manager</span></code></a> for a
<a class="reference external" href="https://docs.python.org/3/library/sqlite3.html#sqlite3.Cursor" title="(in Python v3.13)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">sqlite3.Cursor</span></code></a>.</p>
<p>Open database in read only mode: if the database doesn’t exist. The default
mode creates an empty file on the file system. See:</p>
<ul class="simple">
<li><p><a class="reference external" href="https://docs.python.org/3/library/sqlite3.html#sqlite3.connect">https://docs.python.org/3/library/sqlite3.html#sqlite3.connect</a></p></li>
<li><p><a class="reference external" href="https://www.sqlite.org/uri.html">https://www.sqlite.org/uri.html</a></p></li>
</ul>
</dd></dl>
</section>
<section id="engine-postgresql">
<span id="id3"></span><h3><a class="toc-backref" href="#id14" role="doc-backlink">PostgreSQL</a><a class="headerlink" href="#engine-postgresql" title="Link to this heading"></a></h3>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<ul class="simple">
<li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/postgresql.py">postgresql.py</a></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">pip</span> <span class="pre">install</span></code> <a class="reference external" href="psycopg2">psycopg2-binary</a></p></li>
</ul>
</aside>
<p id="module-searx.engines.postgresql">PostgreSQL is a powerful and robust open source database. Before configuring
the PostgreSQL engine, you must install the dependency <code class="docutils literal notranslate"><span class="pre">psychopg2</span></code>.</p>
<section id="id4">
<h4>Example<a class="headerlink" href="#id4" title="Link to this heading"></a></h4>
<p>Below is an example configuration:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my_database</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">postgresql</span>
<span class="w"> </span><span class="nt">database</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my_database</span>
<span class="w"> </span><span class="nt">username</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">searxng</span>
<span class="w"> </span><span class="nt">password</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">password</span>
<span class="w"> </span><span class="nt">query_str</span><span class="p">:</span><span class="w"> </span><span class="s">&#39;SELECT</span><span class="nv"> </span><span class="s">*</span><span class="nv"> </span><span class="s">from</span><span class="nv"> </span><span class="s">my_table</span><span class="nv"> </span><span class="s">WHERE</span><span class="nv"> </span><span class="s">my_column</span><span class="nv"> </span><span class="s">=</span><span class="nv"> </span><span class="s">%(query)s&#39;</span>
</pre></div>
</div>
</section>
<section id="id5">
<h4>Implementations<a class="headerlink" href="#id5" title="Link to this heading"></a></h4>
</section>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.postgresql.host">
<span class="sig-prename descclassname"><span class="pre">searx.engines.postgresql.</span></span><span class="sig-name descname"><span class="pre">host</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'127.0.0.1'</span></em><a class="headerlink" href="#searx.engines.postgresql.host" title="Link to this definition"></a></dt>
<dd><p>Hostname of the DB connector</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.postgresql.port">
<span class="sig-prename descclassname"><span class="pre">searx.engines.postgresql.</span></span><span class="sig-name descname"><span class="pre">port</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'5432'</span></em><a class="headerlink" href="#searx.engines.postgresql.port" title="Link to this definition"></a></dt>
<dd><p>Port of the DB connector</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.postgresql.database">
<span class="sig-prename descclassname"><span class="pre">searx.engines.postgresql.</span></span><span class="sig-name descname"><span class="pre">database</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.postgresql.database" title="Link to this definition"></a></dt>
<dd><p>Name of the database.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.postgresql.username">
<span class="sig-prename descclassname"><span class="pre">searx.engines.postgresql.</span></span><span class="sig-name descname"><span class="pre">username</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.postgresql.username" title="Link to this definition"></a></dt>
<dd><p>Username for the DB connection.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.postgresql.password">
<span class="sig-prename descclassname"><span class="pre">searx.engines.postgresql.</span></span><span class="sig-name descname"><span class="pre">password</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.postgresql.password" title="Link to this definition"></a></dt>
<dd><p>Password for the DB connection.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.postgresql.query_str">
<span class="sig-prename descclassname"><span class="pre">searx.engines.postgresql.</span></span><span class="sig-name descname"><span class="pre">query_str</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.postgresql.query_str" title="Link to this definition"></a></dt>
<dd><p>SQL query that returns the result items.</p>
</dd></dl>
</section>
<section id="engine-mysql-server">
<span id="id6"></span><h3><a class="toc-backref" href="#id15" role="doc-backlink">MySQL</a><a class="headerlink" href="#engine-mysql-server" title="Link to this heading"></a></h3>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<ul class="simple">
<li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/mysql_server.py">mysql_server.py</a></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">pip</span> <span class="pre">install</span></code> <a class="extlink-pypi reference external" href="https://pypi.org/project/mysql-connector-python">mysql-connector-python</a></p></li>
</ul>
</aside>
<p id="module-searx.engines.mysql_server">MySQL is said to be the most popular open source database. Before enabling
MySQL engine, you must install the package <code class="docutils literal notranslate"><span class="pre">mysql-connector-python</span></code>.</p>
<p>The authentication plugin is configurable by setting <code class="docutils literal notranslate"><span class="pre">auth_plugin</span></code> in the
attributes. By default it is set to <code class="docutils literal notranslate"><span class="pre">caching_sha2_password</span></code>.</p>
<section id="id7">
<h4>Example<a class="headerlink" href="#id7" title="Link to this heading"></a></h4>
<p>This is an example configuration for querying a MySQL server:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my_database</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mysql_server</span>
<span class="w"> </span><span class="nt">database</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my_database</span>
<span class="w"> </span><span class="nt">username</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">searxng</span>
<span class="w"> </span><span class="nt">password</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">password</span>
<span class="w"> </span><span class="nt">limit</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">5</span>
<span class="w"> </span><span class="nt">query_str</span><span class="p">:</span><span class="w"> </span><span class="s">&#39;SELECT</span><span class="nv"> </span><span class="s">*</span><span class="nv"> </span><span class="s">from</span><span class="nv"> </span><span class="s">my_table</span><span class="nv"> </span><span class="s">WHERE</span><span class="nv"> </span><span class="s">my_column=%(query)s&#39;</span>
</pre></div>
</div>
</section>
<section id="id8">
<h4>Implementations<a class="headerlink" href="#id8" title="Link to this heading"></a></h4>
</section>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mysql_server.host">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mysql_server.</span></span><span class="sig-name descname"><span class="pre">host</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'127.0.0.1'</span></em><a class="headerlink" href="#searx.engines.mysql_server.host" title="Link to this definition"></a></dt>
<dd><p>Hostname of the DB connector</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mysql_server.port">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mysql_server.</span></span><span class="sig-name descname"><span class="pre">port</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">3306</span></em><a class="headerlink" href="#searx.engines.mysql_server.port" title="Link to this definition"></a></dt>
<dd><p>Port of the DB connector</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mysql_server.database">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mysql_server.</span></span><span class="sig-name descname"><span class="pre">database</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.mysql_server.database" title="Link to this definition"></a></dt>
<dd><p>Name of the database.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mysql_server.username">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mysql_server.</span></span><span class="sig-name descname"><span class="pre">username</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.mysql_server.username" title="Link to this definition"></a></dt>
<dd><p>Username for the DB connection.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mysql_server.password">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mysql_server.</span></span><span class="sig-name descname"><span class="pre">password</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.mysql_server.password" title="Link to this definition"></a></dt>
<dd><p>Password for the DB connection.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mysql_server.query_str">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mysql_server.</span></span><span class="sig-name descname"><span class="pre">query_str</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.mysql_server.query_str" title="Link to this definition"></a></dt>
<dd><p>SQL query that returns the result items.</p>
</dd></dl>
</section>
<section id="mariadb">
<span id="engine-mariadb-server"></span><h3><a class="toc-backref" href="#id16" role="doc-backlink">MariaDB</a><a class="headerlink" href="#mariadb" title="Link to this heading"></a></h3>
<aside class="sidebar">
<p class="sidebar-title">info</p>
<ul class="simple">
<li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/mariadb_server.py">mariadb_server.py</a></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">pip</span> <span class="pre">install</span></code> <a class="extlink-pypi reference external" href="https://pypi.org/project/mariadb">mariadb</a></p></li>
</ul>
</aside>
<p id="module-searx.engines.mariadb_server">MariaDB is a community driven fork of MySQL. Before enabling MariaDB engine,
you must the install the pip package <code class="docutils literal notranslate"><span class="pre">mariadb</span></code> along with the necessary
prerequities.</p>
<p><a class="reference external" href="https://mariadb.com/docs/server/connect/programming-languages/c/install/">See the following documentation for more details</a></p>
<section id="id9">
<h4>Example<a class="headerlink" href="#id9" title="Link to this heading"></a></h4>
<p>This is an example configuration for querying a MariaDB server:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my_database</span>
<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mariadb_server</span>
<span class="w"> </span><span class="nt">database</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my_database</span>
<span class="w"> </span><span class="nt">username</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">searxng</span>
<span class="w"> </span><span class="nt">password</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">password</span>
<span class="w"> </span><span class="nt">limit</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">5</span>
<span class="w"> </span><span class="nt">query_str</span><span class="p">:</span><span class="w"> </span><span class="s">&#39;SELECT</span><span class="nv"> </span><span class="s">*</span><span class="nv"> </span><span class="s">from</span><span class="nv"> </span><span class="s">my_table</span><span class="nv"> </span><span class="s">WHERE</span><span class="nv"> </span><span class="s">my_column=%(query)s&#39;</span>
</pre></div>
</div>
</section>
<section id="id10">
<h4>Implementations<a class="headerlink" href="#id10" title="Link to this heading"></a></h4>
</section>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mariadb_server.host">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mariadb_server.</span></span><span class="sig-name descname"><span class="pre">host</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'127.0.0.1'</span></em><a class="headerlink" href="#searx.engines.mariadb_server.host" title="Link to this definition"></a></dt>
<dd><p>Hostname of the DB connector</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mariadb_server.port">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mariadb_server.</span></span><span class="sig-name descname"><span class="pre">port</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">3306</span></em><a class="headerlink" href="#searx.engines.mariadb_server.port" title="Link to this definition"></a></dt>
<dd><p>Port of the DB connector</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mariadb_server.database">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mariadb_server.</span></span><span class="sig-name descname"><span class="pre">database</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.mariadb_server.database" title="Link to this definition"></a></dt>
<dd><p>Name of the database.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mariadb_server.username">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mariadb_server.</span></span><span class="sig-name descname"><span class="pre">username</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.mariadb_server.username" title="Link to this definition"></a></dt>
<dd><p>Username for the DB connection.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mariadb_server.password">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mariadb_server.</span></span><span class="sig-name descname"><span class="pre">password</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.mariadb_server.password" title="Link to this definition"></a></dt>
<dd><p>Password for the DB connection.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.mariadb_server.query_str">
<span class="sig-prename descclassname"><span class="pre">searx.engines.mariadb_server.</span></span><span class="sig-name descname"><span class="pre">query_str</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">''</span></em><a class="headerlink" href="#searx.engines.mariadb_server.query_str" title="Link to this definition"></a></dt>
<dd><p>SQL query that returns the result items.</p>
</dd></dl>
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