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<section id="engine-overview">
<span id="engines-dev"></span><h1>Engine Overview<a class="headerlink" href="#engine-overview" title="Link to this heading"></a></h1>
<nav class="contents local" id="contents">
<ul class="simple">
<li><p><a class="reference internal" href="#general-engine-configuration" id="id16">General Engine Configuration</a></p>
<ul>
<li><p><a class="reference internal" href="#engine-file" id="id17">Engine File</a></p></li>
<li><p><a class="reference internal" href="#engine-settings-yml" id="id18">Engine <code class="docutils literal notranslate"><span class="pre">settings.yml</span></code></a></p></li>
<li><p><a class="reference internal" href="#overrides" id="id19">Overrides</a></p></li>
</ul>
</li>
<li><p><a class="reference internal" href="#making-a-request" id="id20">Making a Request</a></p>
<ul>
<li><p><a class="reference internal" href="#passed-arguments-request" id="id21">Passed Arguments (request)</a></p></li>
<li><p><a class="reference internal" href="#specify-request" id="id22">Specify Request</a></p></li>
</ul>
</li>
<li><p><a class="reference internal" href="#result-types-template" id="id23">Result Types (<code class="docutils literal notranslate"><span class="pre">template</span></code>)</a></p>
<ul>
<li><p><a class="reference internal" href="#default" id="id24"><code class="docutils literal notranslate"><span class="pre">default</span></code></a></p></li>
<li><p><a class="reference internal" href="#images" id="id25"><code class="docutils literal notranslate"><span class="pre">images</span></code></a></p></li>
<li><p><a class="reference internal" href="#videos" id="id26"><code class="docutils literal notranslate"><span class="pre">videos</span></code></a></p></li>
<li><p><a class="reference internal" href="#torrent" id="id27"><code class="docutils literal notranslate"><span class="pre">torrent</span></code></a></p></li>
<li><p><a class="reference internal" href="#map" id="id28"><code class="docutils literal notranslate"><span class="pre">map</span></code></a></p></li>
<li><p><a class="reference internal" href="#paper" id="id29"><code class="docutils literal notranslate"><span class="pre">paper</span></code></a></p></li>
</ul>
</li>
</ul>
</nav>
<aside class="sidebar">
<p class="sidebar-title">Further reading ..</p>
<ul class="simple">
<li><p><a class="reference internal" href="../../user/configured_engines.html#configured-engines"><span class="std std-ref">Configured Engines</span></a></p></li>
<li><p><a class="reference internal" href="../../admin/settings/settings_engine.html#settings-engine"><span class="std std-ref">engine:</span></a></p></li>
</ul>
</aside>
<p>SearXNG is a <a class="reference external" href="https://en.wikipedia.org/wiki/Metasearch_engine">metasearch-engine</a>, so it uses different search engines to provide
better results.</p>
<p>Because there is no general search API which could be used for every search
engine, an adapter has to be built between SearXNG and the external search
engines. Adapters are stored under the folder <a class="reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines">git://searx/engines</a>.</p>
<section id="general-engine-configuration">
<span id="id1"></span><h2><a class="toc-backref" href="#id16" role="doc-backlink">General Engine Configuration</a><a class="headerlink" href="#general-engine-configuration" title="Link to this heading"></a></h2>
<p>It is required to tell SearXNG the type of results the engine provides. The
arguments can be set in the engine file or in the settings file (normally
<code class="docutils literal notranslate"><span class="pre">settings.yml</span></code>). The arguments in the settings file override the ones in the
engine file.</p>
<p>It does not matter if an option is stored in the engine file or in the settings.
However, the standard way is the following:</p>
<section id="engine-file">
<span id="id2"></span><h3><a class="toc-backref" href="#id17" role="doc-backlink">Engine File</a><a class="headerlink" href="#engine-file" title="Link to this heading"></a></h3>
<table class="docutils align-default" id="id3" style="width: 100%">
<caption><span class="caption-number">Table 2 </span><span class="caption-text">Common options in the engine module</span><a class="headerlink" href="#id3" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>argument</p></th>
<th class="head"><p>type</p></th>
<th class="head"><p>information</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>categories</p></td>
<td><p>list</p></td>
<td><p>categories, in which the engine is working</p></td>
</tr>
<tr class="row-odd"><td><p>paging</p></td>
<td><p>boolean</p></td>
<td><p>support multiple pages</p></td>
</tr>
<tr class="row-even"><td><p>time_range_support</p></td>
<td><p>boolean</p></td>
<td><p>support search time range</p></td>
</tr>
<tr class="row-odd"><td><p>engine_type</p></td>
<td><p>str</p></td>
<td><ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">online</span></code> <a class="reference internal" href="index.html#online-engines"><span class="std std-ref">[ref]</span></a> by
default, other possibles values are:</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">offline</span></code> <a class="reference internal" href="index.html#offline-engines"><span class="std std-ref">[ref]</span></a></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">online_dictionary</span></code> <a class="reference internal" href="index.html#online-dictionary"><span class="std std-ref">[ref]</span></a></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">online_currency</span></code> <a class="reference internal" href="index.html#online-currency"><span class="std std-ref">[ref]</span></a></p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">online_url_search</span></code> <a class="reference internal" href="index.html#online-url-search"><span class="std std-ref">[ref]</span></a></p></li>
</ul>
</td>
</tr>
</tbody>
</table>
</section>
<section id="engine-settings-yml">
<span id="engine-settings"></span><h3><a class="toc-backref" href="#id18" role="doc-backlink">Engine <code class="docutils literal notranslate"><span class="pre">settings.yml</span></code></a><a class="headerlink" href="#engine-settings-yml" title="Link to this heading"></a></h3>
<p>For a more detailed description, see <a class="reference internal" href="../../admin/settings/settings_engine.html#settings-engine"><span class="std std-ref">engine:</span></a> in the <a class="reference internal" href="../../admin/settings/settings.html#settings-yml"><span class="std std-ref">settings.yml</span></a>.</p>
<table class="docutils align-default" id="id4" style="width: 100%">
<caption><span class="caption-number">Table 3 </span><span class="caption-text">Common options in the engine setup (<code class="docutils literal notranslate"><span class="pre">settings.yml</span></code>)</span><a class="headerlink" href="#id4" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>argument</p></th>
<th class="head"><p>type</p></th>
<th class="head"><p>information</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>name</p></td>
<td><p>string</p></td>
<td><p>name of search-engine</p></td>
</tr>
<tr class="row-odd"><td><p>engine</p></td>
<td><p>string</p></td>
<td><p>name of searxng-engine (file name without <code class="docutils literal notranslate"><span class="pre">.py</span></code>)</p></td>
</tr>
<tr class="row-even"><td><p>enable_http</p></td>
<td><p>bool</p></td>
<td><p>enable HTTP (by default only HTTPS is enabled).</p></td>
</tr>
<tr class="row-odd"><td><p>shortcut</p></td>
<td><p>string</p></td>
<td><p>shortcut of search-engine</p></td>
</tr>
<tr class="row-even"><td><p>timeout</p></td>
<td><p>string</p></td>
<td><p>specific timeout for search-engine</p></td>
</tr>
<tr class="row-odd"><td><p>display_error_messages</p></td>
<td><p>boolean</p></td>
<td><p>display error messages on the web UI</p></td>
</tr>
<tr class="row-even"><td><p>proxies</p></td>
<td><p>dict</p></td>
<td><p>set proxies for a specific engine
(e.g. <code class="docutils literal notranslate"><span class="pre">proxies</span> <span class="pre">:</span> <span class="pre">{http:</span> <span class="pre">socks5://proxy:port,</span>
<span class="pre">https:</span> <span class="pre">socks5://proxy:port}</span></code>)</p></td>
</tr>
</tbody>
</table>
</section>
<section id="overrides">
<span id="engine-overrides"></span><h3><a class="toc-backref" href="#id19" role="doc-backlink">Overrides</a><a class="headerlink" href="#overrides" title="Link to this heading"></a></h3>
<p>A few of the options have default values in the namespace of the engines python
module, but are often overwritten by the settings. If <code class="docutils literal notranslate"><span class="pre">None</span></code> is assigned to an
option in the engine file, it has to be redefined in the settings, otherwise
SearXNG will not start with that engine (global names with a leading underline can
be <code class="docutils literal notranslate"><span class="pre">None</span></code>).</p>
<p>Here is an very simple example of the global names in the namespace of engines
module:</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="c1"># engine dependent config</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;general&#39;</span><span class="p">]</span>
<span class="n">paging</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">_non_overwritten_global</span> <span class="o">=</span> <span class="s1">&#39;foo&#39;</span>
</pre></div>
</div>
<table class="docutils align-default" id="id5" style="width: 100%">
<caption><span class="caption-number">Table 4 </span><span class="caption-text">The naming of overrides is arbitrary / recommended overrides are:</span><a class="headerlink" href="#id5" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>argument</p></th>
<th class="head"><p>type</p></th>
<th class="head"><p>information</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>base_url</p></td>
<td><p>string</p></td>
<td><p>base-url, can be overwritten to use same
engine on other URL</p></td>
</tr>
<tr class="row-odd"><td><p>number_of_results</p></td>
<td><p>int</p></td>
<td><p>maximum number of results per request</p></td>
</tr>
<tr class="row-even"><td><p>language</p></td>
<td><p>string</p></td>
<td><p>ISO code of language and country like en_US</p></td>
</tr>
<tr class="row-odd"><td><p>api_key</p></td>
<td><p>string</p></td>
<td><p>api-key if required by engine</p></td>
</tr>
</tbody>
</table>
</section>
</section>
<section id="making-a-request">
<span id="engine-request"></span><h2><a class="toc-backref" href="#id20" role="doc-backlink">Making a Request</a><a class="headerlink" href="#making-a-request" title="Link to this heading"></a></h2>
<p>To perform a search an URL have to be specified. In addition to specifying an
URL, arguments can be passed to the query.</p>
<section id="passed-arguments-request">
<span id="engine-request-arguments"></span><h3><a class="toc-backref" href="#id21" role="doc-backlink">Passed Arguments (request)</a><a class="headerlink" href="#passed-arguments-request" title="Link to this heading"></a></h3>
<p>These arguments can be used to construct the search query. Furthermore,
parameters with default value can be redefined for special purposes.</p>
<span id="engine-request-online"></span><table class="docutils align-default" id="id6" style="width: 100%">
<caption><span class="caption-number">Table 5 </span><span class="caption-text">If the <code class="docutils literal notranslate"><span class="pre">engine_type</span></code> is <a class="reference internal" href="../../src/searx.search.processors.html#searx.search.processors.online.OnlineProcessor.get_params" title="searx.search.processors.online.OnlineProcessor.get_params"><code class="xref py py-obj docutils literal notranslate"><span class="pre">online</span></code></a></span><a class="headerlink" href="#id6" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>argument</p></th>
<th class="head"><p>type</p></th>
<th class="head"><p>default-value, information</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>url</p></td>
<td><p>str</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">''</span></code></p></td>
</tr>
<tr class="row-odd"><td><p>method</p></td>
<td><p>str</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">'GET'</span></code></p></td>
</tr>
<tr class="row-even"><td><p>headers</p></td>
<td><p>set</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">{}</span></code></p></td>
</tr>
<tr class="row-odd"><td><p>data</p></td>
<td><p>set</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">{}</span></code></p></td>
</tr>
<tr class="row-even"><td><p>cookies</p></td>
<td><p>set</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">{}</span></code></p></td>
</tr>
<tr class="row-odd"><td><p>verify</p></td>
<td><p>bool</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">True</span></code></p></td>
</tr>
<tr class="row-even"><td><p>headers.User-Agent</p></td>
<td><p>str</p></td>
<td><p>a random User-Agent</p></td>
</tr>
<tr class="row-odd"><td><p>category</p></td>
<td><p>str</p></td>
<td><p>current category, like <code class="docutils literal notranslate"><span class="pre">'general'</span></code></p></td>
</tr>
<tr class="row-even"><td><p>safesearch</p></td>
<td><p>int</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">0</span></code>, between <code class="docutils literal notranslate"><span class="pre">0</span></code> and <code class="docutils literal notranslate"><span class="pre">2</span></code> (normal, moderate, strict)</p></td>
</tr>
<tr class="row-odd"><td><p>time_range</p></td>
<td><p>Optional[str]</p></td>
<td><p><code class="docutils literal notranslate"><span class="pre">None</span></code>, can be <code class="docutils literal notranslate"><span class="pre">day</span></code>, <code class="docutils literal notranslate"><span class="pre">week</span></code>, <code class="docutils literal notranslate"><span class="pre">month</span></code>, <code class="docutils literal notranslate"><span class="pre">year</span></code></p></td>
</tr>
<tr class="row-even"><td><p>pageno</p></td>
<td><p>int</p></td>
<td><p>current pagenumber</p></td>
</tr>
<tr class="row-odd"><td><p>searxng_locale</p></td>
<td><p>str</p></td>
<td><p>SearXNGs locale selected by user. Specific language code like
<code class="docutils literal notranslate"><span class="pre">'en'</span></code>, <code class="docutils literal notranslate"><span class="pre">'en-US'</span></code>, or <code class="docutils literal notranslate"><span class="pre">'all'</span></code> if unspecified.</p></td>
</tr>
</tbody>
</table>
<span id="engine-request-online-dictionary"></span><table class="docutils align-default" id="id7" style="width: 100%">
<caption><span class="caption-number">Table 6 </span><span class="caption-text">If the <code class="docutils literal notranslate"><span class="pre">engine_type</span></code> is <a class="reference internal" href="../../src/searx.search.processors.html#searx.search.processors.online_dictionary.OnlineDictionaryProcessor.get_params" title="searx.search.processors.online_dictionary.OnlineDictionaryProcessor.get_params"><code class="xref py py-obj docutils literal notranslate"><span class="pre">online_dictionary</span></code></a>,
in addition to the <a class="reference internal" href="#engine-request-online"><span class="std std-ref">online</span></a> arguments:</span><a class="headerlink" href="#id7" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>argument</p></th>
<th class="head"><p>type</p></th>
<th class="head"><p>default-value, information</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>from_lang</p></td>
<td><p>str</p></td>
<td><p>specific language code like <code class="docutils literal notranslate"><span class="pre">'en_US'</span></code></p></td>
</tr>
<tr class="row-odd"><td><p>to_lang</p></td>
<td><p>str</p></td>
<td><p>specific language code like <code class="docutils literal notranslate"><span class="pre">'en_US'</span></code></p></td>
</tr>
<tr class="row-even"><td><p>query</p></td>
<td><p>str</p></td>
<td><p>the text query without the languages</p></td>
</tr>
</tbody>
</table>
<span id="engine-request-online-currency"></span><table class="docutils align-default" id="id8" style="width: 100%">
<caption><span class="caption-number">Table 7 </span><span class="caption-text">If the <code class="docutils literal notranslate"><span class="pre">engine_type</span></code> is <a class="reference internal" href="../../src/searx.search.processors.html#searx.search.processors.online_currency.OnlineCurrencyProcessor.get_params" title="searx.search.processors.online_currency.OnlineCurrencyProcessor.get_params"><code class="xref py py-obj docutils literal notranslate"><span class="pre">online_currency</span></code></a>,
in addition to the <a class="reference internal" href="#engine-request-online"><span class="std std-ref">online</span></a> arguments:</span><a class="headerlink" href="#id8" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>argument</p></th>
<th class="head"><p>type</p></th>
<th class="head"><p>default-value, information</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>amount</p></td>
<td><p>float</p></td>
<td><p>the amount to convert</p></td>
</tr>
<tr class="row-odd"><td><p>from</p></td>
<td><p>str</p></td>
<td><p>ISO 4217 code</p></td>
</tr>
<tr class="row-even"><td><p>to</p></td>
<td><p>str</p></td>
<td><p>ISO 4217 code</p></td>
</tr>
<tr class="row-odd"><td><p>from_name</p></td>
<td><p>str</p></td>
<td><p>currency name</p></td>
</tr>
<tr class="row-even"><td><p>to_name</p></td>
<td><p>str</p></td>
<td><p>currency name</p></td>
</tr>
</tbody>
</table>
<span id="engine-request-online-url-search"></span><table class="docutils align-default" id="id9" style="width: 100%">
<caption><span class="caption-number">Table 8 </span><span class="caption-text">If the <code class="docutils literal notranslate"><span class="pre">engine_type</span></code> is <a class="reference internal" href="../../src/searx.search.processors.html#searx.search.processors.online_url_search.OnlineUrlSearchProcessor.get_params" title="searx.search.processors.online_url_search.OnlineUrlSearchProcessor.get_params"><code class="xref py py-obj docutils literal notranslate"><span class="pre">online_url_search</span></code></a>,
in addition to the <a class="reference internal" href="#engine-request-online"><span class="std std-ref">online</span></a> arguments:</span><a class="headerlink" href="#id9" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>argument</p></th>
<th class="head"><p>type</p></th>
<th class="head"><p>default-value, information</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>search_url</p></td>
<td><p>dict</p></td>
<td><p>URLs from the search query:</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="p">{</span>
<span class="s1">&#39;http&#39;</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span>
<span class="s1">&#39;ftp&#39;</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span>
<span class="s1">&#39;data:image&#39;</span><span class="p">:</span> <span class="nb">str</span>
<span class="p">}</span>
</pre></div>
</div>
</td>
</tr>
</tbody>
</table>
</section>
<section id="specify-request">
<h3><a class="toc-backref" href="#id22" role="doc-backlink">Specify Request</a><a class="headerlink" href="#specify-request" title="Link to this heading"></a></h3>
<p>The function <a class="reference internal" href="demo/demo_online.html#searx.engines.demo_online.request" title="searx.engines.demo_online.request"><code class="xref py py-func docutils literal notranslate"><span class="pre">def</span> <span class="pre">request(query,</span> <span class="pre">params):</span></code></a> always returns the <code class="docutils literal notranslate"><span class="pre">params</span></code> variable, the
following parameters can be used to specify a search request:</p>
<table class="docutils align-default" style="width: 100%">
<thead>
<tr class="row-odd"><th class="head"><p>argument</p></th>
<th class="head"><p>type</p></th>
<th class="head"><p>information</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>url</p></td>
<td><p>str</p></td>
<td><p>requested url</p></td>
</tr>
<tr class="row-odd"><td><p>method</p></td>
<td><p>str</p></td>
<td><p>HTTP request method</p></td>
</tr>
<tr class="row-even"><td><p>headers</p></td>
<td><p>set</p></td>
<td><p>HTTP header information</p></td>
</tr>
<tr class="row-odd"><td><p>data</p></td>
<td><p>set</p></td>
<td><p>HTTP data information</p></td>
</tr>
<tr class="row-even"><td><p>cookies</p></td>
<td><p>set</p></td>
<td><p>HTTP cookies</p></td>
</tr>
<tr class="row-odd"><td><p>verify</p></td>
<td><p>bool</p></td>
<td><p>Performing SSL-Validity check</p></td>
</tr>
<tr class="row-even"><td><p>allow_redirects</p></td>
<td><p>bool</p></td>
<td><p>Follow redirects</p></td>
</tr>
<tr class="row-odd"><td><p>max_redirects</p></td>
<td><p>int</p></td>
<td><p>maximum redirects, hard limit</p></td>
</tr>
<tr class="row-even"><td><p>soft_max_redirects</p></td>
<td><p>int</p></td>
<td><p>maximum redirects, soft limit. Record an error but dont stop the engine</p></td>
</tr>
<tr class="row-odd"><td><p>raise_for_httperror</p></td>
<td><p>bool</p></td>
<td><p>True by default: raise an exception if the HTTP code of response is &gt;= 300</p></td>
</tr>
</tbody>
</table>
</section>
</section>
<section id="result-types-template">
<span id="engine-media-types"></span><span id="engine-results"></span><h2><a class="toc-backref" href="#id23" role="doc-backlink">Result Types (<code class="docutils literal notranslate"><span class="pre">template</span></code>)</a><a class="headerlink" href="#result-types-template" title="Link to this heading"></a></h2>
<p>Each result item of an engine can be of different media-types. Currently the
following media-types are supported. To set another media-type as
<a class="reference internal" href="#template-default"><span class="std std-ref">default</span></a>, the parameter <code class="docutils literal notranslate"><span class="pre">template</span></code> must be set to the desired
type.</p>
<section id="default">
<span id="template-default"></span><h3><a class="toc-backref" href="#id24" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">default</span></code></a><a class="headerlink" href="#default" title="Link to this heading"></a></h3>
<table class="docutils align-default" id="id10" style="width: 100%">
<caption><span class="caption-number">Table 9 </span><span class="caption-text">Parameter of the <strong>default</strong> media type:</span><a class="headerlink" href="#id10" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>result-parameter</p></th>
<th class="head"><p>information</p></th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><p>url</p></td>
<td><p>string, url of the result</p></td>
</tr>
<tr class="row-odd"><td><p>title</p></td>
<td><p>string, title of the result</p></td>
</tr>
<tr class="row-even"><td><p>content</p></td>
<td><p>string, general result-text</p></td>
</tr>
<tr class="row-odd"><td><p>publishedDate</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/datetime.html#datetime.datetime" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">datetime.datetime</span></code></a>, time of publish</p></td>
</tr>
</tbody>
</table>
</section>
<section id="images">
<span id="template-images"></span><h3><a class="toc-backref" href="#id25" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">images</span></code></a><a class="headerlink" href="#images" title="Link to this heading"></a></h3>
<table class="docutils align-default" id="id11" style="width: 100%">
<caption><span class="caption-number">Table 10 </span><span class="caption-text">Parameter of the <strong>images</strong> media type:</span><a class="headerlink" href="#id11" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>result-parameter</p></th>
<th class="head"><p>information</p></th>
</tr>
<tr class="row-even"><th class="head"><p>template</p></th>
<th class="head"><p>is set to <code class="docutils literal notranslate"><span class="pre">images.html</span></code></p></th>
</tr>
</thead>
<tbody>
<tr class="row-odd"><td><p>url</p></td>
<td><p>string, url to the result site</p></td>
</tr>
<tr class="row-even"><td><p>title</p></td>
<td><p>string, title of the result <em>(partly implemented)</em></p></td>
</tr>
<tr class="row-odd"><td><p>content</p></td>
<td><p><em>(partly implemented)</em></p></td>
</tr>
<tr class="row-even"><td><p>publishedDate</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/datetime.html#datetime.datetime" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">datetime.datetime</span></code></a>,
time of publish <em>(partly implemented)</em></p></td>
</tr>
<tr class="row-odd"><td><p>img_src</p></td>
<td><p>string, url to the result image</p></td>
</tr>
<tr class="row-even"><td><p>thumbnail_src</p></td>
<td><p>string, url to a small-preview image</p></td>
</tr>
</tbody>
</table>
</section>
<section id="videos">
<span id="template-videos"></span><h3><a class="toc-backref" href="#id26" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">videos</span></code></a><a class="headerlink" href="#videos" title="Link to this heading"></a></h3>
<table class="docutils align-default" id="id12" style="width: 100%">
<caption><span class="caption-number">Table 11 </span><span class="caption-text">Parameter of the <strong>videos</strong> media type:</span><a class="headerlink" href="#id12" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>result-parameter</p></th>
<th class="head"><p>information</p></th>
</tr>
<tr class="row-even"><th class="head"><p>template</p></th>
<th class="head"><p>is set to <code class="docutils literal notranslate"><span class="pre">videos.html</span></code></p></th>
</tr>
</thead>
<tbody>
<tr class="row-odd"><td><p>url</p></td>
<td><p>string, url of the result</p></td>
</tr>
<tr class="row-even"><td><p>title</p></td>
<td><p>string, title of the result</p></td>
</tr>
<tr class="row-odd"><td><p>content</p></td>
<td><p><em>(not implemented yet)</em></p></td>
</tr>
<tr class="row-even"><td><p>publishedDate</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/datetime.html#datetime.datetime" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">datetime.datetime</span></code></a>, time of publish</p></td>
</tr>
<tr class="row-odd"><td><p>thumbnail</p></td>
<td><p>string, url to a small-preview image</p></td>
</tr>
</tbody>
</table>
</section>
<section id="torrent">
<span id="template-torrent"></span><h3><a class="toc-backref" href="#id27" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">torrent</span></code></a><a class="headerlink" href="#torrent" title="Link to this heading"></a></h3>
<table class="docutils align-default" id="id13" style="width: 100%">
<caption><span class="caption-number">Table 12 </span><span class="caption-text">Parameter of the <strong>torrent</strong> media type:</span><a class="headerlink" href="#id13" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>result-parameter</p></th>
<th class="head"><p>information</p></th>
</tr>
<tr class="row-even"><th class="head"><p>template</p></th>
<th class="head"><p>is set to <code class="docutils literal notranslate"><span class="pre">torrent.html</span></code></p></th>
</tr>
</thead>
<tbody>
<tr class="row-odd"><td><p>url</p></td>
<td><p>string, url of the result</p></td>
</tr>
<tr class="row-even"><td><p>title</p></td>
<td><p>string, title of the result</p></td>
</tr>
<tr class="row-odd"><td><p>content</p></td>
<td><p>string, general result-text</p></td>
</tr>
<tr class="row-even"><td><p>publishedDate</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/datetime.html#datetime.datetime" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">datetime.datetime</span></code></a>,
time of publish <em>(not implemented yet)</em></p></td>
</tr>
<tr class="row-odd"><td><p>seed</p></td>
<td><p>int, number of seeder</p></td>
</tr>
<tr class="row-even"><td><p>leech</p></td>
<td><p>int, number of leecher</p></td>
</tr>
<tr class="row-odd"><td><p>filesize</p></td>
<td><p>int, size of file in bytes</p></td>
</tr>
<tr class="row-even"><td><p>files</p></td>
<td><p>int, number of files</p></td>
</tr>
<tr class="row-odd"><td><p>magnetlink</p></td>
<td><p>string, <a class="reference external" href="https://en.wikipedia.org/wiki/Magnet_URI_scheme">magnetlink</a> of the result</p></td>
</tr>
<tr class="row-even"><td><p>torrentfile</p></td>
<td><p>string, torrentfile of the result</p></td>
</tr>
</tbody>
</table>
</section>
<section id="map">
<span id="template-map"></span><h3><a class="toc-backref" href="#id28" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">map</span></code></a><a class="headerlink" href="#map" title="Link to this heading"></a></h3>
<table class="docutils align-default" id="id14" style="width: 100%">
<caption><span class="caption-number">Table 13 </span><span class="caption-text">Parameter of the <strong>map</strong> media type:</span><a class="headerlink" href="#id14" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>result-parameter</p></th>
<th class="head"><p>information</p></th>
</tr>
<tr class="row-even"><th class="head"><p>template</p></th>
<th class="head"><p>is set to <code class="docutils literal notranslate"><span class="pre">map.html</span></code></p></th>
</tr>
</thead>
<tbody>
<tr class="row-odd"><td><p>url</p></td>
<td><p>string, url of the result</p></td>
</tr>
<tr class="row-even"><td><p>title</p></td>
<td><p>string, title of the result</p></td>
</tr>
<tr class="row-odd"><td><p>content</p></td>
<td><p>string, general result-text</p></td>
</tr>
<tr class="row-even"><td><p>publishedDate</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/datetime.html#datetime.datetime" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">datetime.datetime</span></code></a>, time of publish</p></td>
</tr>
<tr class="row-odd"><td><p>latitude</p></td>
<td><p>latitude of result (in decimal format)</p></td>
</tr>
<tr class="row-even"><td><p>longitude</p></td>
<td><p>longitude of result (in decimal format)</p></td>
</tr>
<tr class="row-odd"><td><p>boundingbox</p></td>
<td><p>boundingbox of result (array of 4. values
<code class="docutils literal notranslate"><span class="pre">[lat-min,</span> <span class="pre">lat-max,</span> <span class="pre">lon-min,</span> <span class="pre">lon-max]</span></code>)</p></td>
</tr>
<tr class="row-even"><td><p>geojson</p></td>
<td><p>geojson of result (<a class="reference external" href="https://geojson.org/">https://geojson.org/</a>)</p></td>
</tr>
<tr class="row-odd"><td><p>osm.type</p></td>
<td><p>type of osm-object (if OSM-Result)</p></td>
</tr>
<tr class="row-even"><td><p>osm.id</p></td>
<td><p>id of osm-object (if OSM-Result)</p></td>
</tr>
<tr class="row-odd"><td><p>address.name</p></td>
<td><p>name of object</p></td>
</tr>
<tr class="row-even"><td><p>address.road</p></td>
<td><p>street name of object</p></td>
</tr>
<tr class="row-odd"><td><p>address.house_number</p></td>
<td><p>house number of object</p></td>
</tr>
<tr class="row-even"><td><p>address.locality</p></td>
<td><p>city, place of object</p></td>
</tr>
<tr class="row-odd"><td><p>address.postcode</p></td>
<td><p>postcode of object</p></td>
</tr>
<tr class="row-even"><td><p>address.country</p></td>
<td><p>country of object</p></td>
</tr>
</tbody>
</table>
</section>
<section id="paper">
<span id="template-paper"></span><h3><a class="toc-backref" href="#id29" role="doc-backlink"><code class="docutils literal notranslate"><span class="pre">paper</span></code></a><a class="headerlink" href="#paper" title="Link to this heading"></a></h3>
<table class="docutils align-default" id="id15" style="width: 100%">
<caption><span class="caption-number">Table 14 </span><span class="caption-text">Parameter of the <strong>paper</strong> media type /
see <a class="reference external" href="https://en.wikipedia.org/wiki/BibTeX#Field_types">BibTeX field types</a> and <a class="reference external" href="https://www.bibtex.com/g/bibtex-format/">BibTeX format</a></span><a class="headerlink" href="#id15" title="Link to this table"></a></caption>
<thead>
<tr class="row-odd"><th class="head"><p>result-parameter</p></th>
<th class="head"><p>Python type</p></th>
<th class="head"><p>information</p></th>
</tr>
<tr class="row-even"><th class="head"><p>template</p></th>
<th class="head"><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></th>
<th class="head"><p>is set to <code class="docutils literal notranslate"><span class="pre">paper.html</span></code></p></th>
</tr>
</thead>
<tbody>
<tr class="row-odd"><td><p>title</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>title of the result</p></td>
</tr>
<tr class="row-even"><td><p>content</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>abstract</p></td>
</tr>
<tr class="row-odd"><td><p>comments</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>free text display in italic below the content</p></td>
</tr>
<tr class="row-even"><td><p>tags</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">List</span></code></a>[<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a>]</p></td>
<td><p>free tag list</p></td>
</tr>
<tr class="row-odd"><td><p>publishedDate</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/datetime.html#datetime.datetime" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">datetime</span></code></a></p></td>
<td><p>last publication date</p></td>
</tr>
<tr class="row-even"><td><p>type</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>short description of medium type, e.g. <em>book</em>, <em>pdf</em> or <em>html</em></p></td>
</tr>
<tr class="row-odd"><td><p>authors</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">List</span></code></a>[<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a>]</p></td>
<td><p>list of authors of the work (authors with a “s”)</p></td>
</tr>
<tr class="row-even"><td><p>editor</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>list of editors of a book</p></td>
</tr>
<tr class="row-odd"><td><p>publisher</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>name of the publisher</p></td>
</tr>
<tr class="row-even"><td><p>journal</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>name of the journal or magazine the article was
published in</p></td>
</tr>
<tr class="row-odd"><td><p>volume</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>volume number</p></td>
</tr>
<tr class="row-even"><td><p>pages</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>page range where the article is</p></td>
</tr>
<tr class="row-odd"><td><p>number</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>number of the report or the issue number for a journal article</p></td>
</tr>
<tr class="row-even"><td><p>doi</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>DOI number (like <code class="docutils literal notranslate"><span class="pre">10.1038/d41586-018-07848-2</span></code>)</p></td>
</tr>
<tr class="row-odd"><td><p>issn</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">List</span></code></a>[<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a>]</p></td>
<td><p>ISSN number like <code class="docutils literal notranslate"><span class="pre">1476-4687</span></code></p></td>
</tr>
<tr class="row-even"><td><p>isbn</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">List</span></code></a>[<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a>]</p></td>
<td><p>ISBN number like <code class="docutils literal notranslate"><span class="pre">9780201896831</span></code></p></td>
</tr>
<tr class="row-odd"><td><p>pdf_url</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>URL to the full article, the PDF version</p></td>
</tr>
<tr class="row-even"><td><p>html_url</p></td>
<td><p><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="xref py py-class docutils literal notranslate"><span class="pre">str</span></code></a></p></td>
<td><p>URL to full article, HTML version</p></td>
</tr>
</tbody>
</table>
</section>
</section>
</section>
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<li class="toctree-l1"><a class="reference internal" href="../../user/index.html">User information</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../own-instance.html">Why use a private instance?</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../admin/index.html">Administrator documentation</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="../index.html">Developer documentation</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="../quickstart.html">Development Quickstart</a></li>
<li class="toctree-l2"><a class="reference internal" href="../rtm_asdf.html">Runtime Management</a></li>
<li class="toctree-l2"><a class="reference internal" href="../contribution_guide.html">How to contribute</a></li>
<li class="toctree-l2 current"><a class="reference internal" href="index.html">Engine Implementations</a><ul class="current">
<li class="toctree-l3"><a class="reference internal" href="enginelib.html">Engine Library</a></li>
<li class="toctree-l3"><a class="reference internal" href="engines.html">SearXNGs engines loader</a></li>
<li class="toctree-l3 current"><a class="current reference internal" href="#">Engine Overview</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#general-engine-configuration">General Engine Configuration</a><ul>
<li class="toctree-l5"><a class="reference internal" href="#engine-file">Engine File</a></li>
<li class="toctree-l5"><a class="reference internal" href="#engine-settings-yml">Engine <code class="docutils literal notranslate"><span class="pre">settings.yml</span></code></a></li>
<li class="toctree-l5"><a class="reference internal" href="#overrides">Overrides</a></li>
</ul>
</li>
<li class="toctree-l4"><a class="reference internal" href="#making-a-request">Making a Request</a><ul>
<li class="toctree-l5"><a class="reference internal" href="#passed-arguments-request">Passed Arguments (request)</a></li>
<li class="toctree-l5"><a class="reference internal" href="#specify-request">Specify Request</a></li>
</ul>
</li>
<li class="toctree-l4"><a class="reference internal" href="#result-types-template">Result Types (<code class="docutils literal notranslate"><span class="pre">template</span></code>)</a><ul>
<li class="toctree-l5"><a class="reference internal" href="#default"><code class="docutils literal notranslate"><span class="pre">default</span></code></a></li>
<li class="toctree-l5"><a class="reference internal" href="#images"><code class="docutils literal notranslate"><span class="pre">images</span></code></a></li>
<li class="toctree-l5"><a class="reference internal" href="#videos"><code class="docutils literal notranslate"><span class="pre">videos</span></code></a></li>
<li class="toctree-l5"><a class="reference internal" href="#torrent"><code class="docutils literal notranslate"><span class="pre">torrent</span></code></a></li>
<li class="toctree-l5"><a class="reference internal" href="#map"><code class="docutils literal notranslate"><span class="pre">map</span></code></a></li>
<li class="toctree-l5"><a class="reference internal" href="#paper"><code class="docutils literal notranslate"><span class="pre">paper</span></code></a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="index.html#engine-types">Engine Types</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../search_api.html">Search API</a></li>
<li class="toctree-l2"><a class="reference internal" href="../plugins.html">Plugins</a></li>
<li class="toctree-l2"><a class="reference internal" href="../translation.html">Translation</a></li>
<li class="toctree-l2"><a class="reference internal" href="../lxcdev.html">Developing in Linux Containers</a></li>
<li class="toctree-l2"><a class="reference internal" href="../makefile.html">Makefile &amp; <code class="docutils literal notranslate"><span class="pre">./manage</span></code></a></li>
<li class="toctree-l2"><a class="reference internal" href="../reST.html">reST primer</a></li>
<li class="toctree-l2"><a class="reference internal" href="../searxng_extra/index.html">Tooling box <code class="docutils literal notranslate"><span class="pre">searxng_extra</span></code></a></li>
</ul>
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<li class="toctree-l1"><a class="reference internal" href="../../utils/index.html">DevOps tooling box</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../src/index.html">Source-Code</a></li>
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<h3>Project Links</h3>
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<li><a href="https://github.com/searxng/searxng/tree/master">Source</a>
<li><a href="https://github.com/searxng/searxng/wiki">Wiki</a>
<li><a href="https://searx.space">Public instances</a>
<li><a href="https://github.com/searxng/searxng/issues">Issue Tracker</a>
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<li>Previous: <a href="engines.html" title="previous chapter">SearXNGs engines loader</a>
<li>Next: <a href="demo/demo_online.html" title="next chapter">Demo Online Engine</a></ul>
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