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			305 lines
		
	
	
		
			22 KiB
		
	
	
	
		
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|  | <!DOCTYPE html> | |||
|  | 
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|  |         <li class="nav-item nav-item-this"><a href="">NoSQL databases</a></li>  | |||
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|  |              | |||
|  |   <section id="nosql-databases"> | |||
|  | <span id="nosql-engines"></span><h1>NoSQL databases<a class="headerlink" href="#nosql-databases" 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://en.wikipedia.org/wiki/NoSQL">NoSQL databases</a></p></li> | |||
|  | <li><p><a class="reference external" href="https://redis.io/">redis.io</a></p></li> | |||
|  | <li><p><a class="reference external" href="https://www.mongodb.com">MongoDB</a></p></li> | |||
|  | </ul> | |||
|  | </aside> | |||
|  | <nav class="contents local" id="contents"> | |||
|  | <ul class="simple"> | |||
|  | <li><p><a class="reference internal" href="#extra-dependencies" id="id6">Extra Dependencies</a></p></li> | |||
|  | <li><p><a class="reference internal" href="#configure-the-engines" id="id7">Configure the engines</a></p> | |||
|  | <ul> | |||
|  | <li><p><a class="reference internal" href="#redis-server" id="id8">Redis Server</a></p></li> | |||
|  | <li><p><a class="reference internal" href="#engine-mongodb" id="id9">MongoDB</a></p></li> | |||
|  | </ul> | |||
|  | </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>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-redis-server"><span class="std std-ref">Redis 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_engine.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-redis-server"><span class="std std-ref">Redis 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 & 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="redis-server"> | |||
|  | <span id="engine-redis-server"></span><h3><a class="toc-backref" href="#id8" role="doc-backlink">Redis Server</a><a class="headerlink" href="#redis-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/redis-py#installation">redis</a></p></li> | |||
|  | <li><p><a class="reference external" href="https://redis.io/">redis.io</a></p></li> | |||
|  | <li><p><a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/searx/engines/redis_server.py">redis_server.py</a></p></li> | |||
|  | </ul> | |||
|  | </aside> | |||
|  | <p id="module-searx.engines.redis_server">Redis 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">redis_server</span></code> engine, you must install | |||
|  | the dependency <a class="reference external" href="https://github.com/andymccurdy/redis-py#installation">redis</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: redis</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">myredis</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">redis_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">'127.0.0.1'</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">''</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">'127.0.0.1'</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">'business'</span> | |||
|  | <span class="w">  </span><span class="nt">collection</span><span class="p">:</span><span class="w"> </span><span class="s">'reviews'</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">'name'</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> | |||
|  | 
 | |||
|  | 
 | |||
|  |             <div class="clearer"></div> | |||
|  |           </div> | |||
|  |         </div> | |||
|  |       </div> | |||
|  |   <span id="sidebar-top"></span> | |||
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|  |               <img class="logo" src="../../../_static/searxng-wordmark.svg" alt="Logo of SearXNG"/> | |||
|  |             </a></p> | |||
|  |    | |||
|  | 
 | |||
|  | <h3><a href="../../../index.html">Table of Contents</a></h3> | |||
|  | <ul class="current"> | |||
|  | <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"><a class="reference internal" href="../../extended_types.html">Extended Types</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">SearXNG’s engines loader</a></li> | |||
|  | <li class="toctree-l3"><a class="reference internal" href="../engine_overview.html">Engine Overview</a></li> | |||
|  | <li class="toctree-l3"><a class="reference internal" href="../index.html#resultlist-and-engines">ResultList and engines</a></li> | |||
|  | <li class="toctree-l3 current"><a class="reference internal" href="../index.html#engine-types">Engine Types</a><ul class="current"> | |||
|  | <li class="toctree-l4"><a class="reference internal" href="../index.html#online-engines">Online Engines</a></li> | |||
|  | <li class="toctree-l4 current"><a class="reference internal" href="../index.html#offline-engines">Offline Engines</a><ul class="current"> | |||
|  | <li class="toctree-l5"><a class="reference internal" href="../offline_concept.html">Offline Concept</a></li> | |||
|  | <li class="toctree-l5"><a class="reference internal" href="../demo/demo_offline.html">Demo Offline Engine</a></li> | |||
|  | <li class="toctree-l5"><a class="reference internal" href="command-line-engines.html">Command Line Engines</a></li> | |||
|  | <li class="toctree-l5 current"><a class="current reference internal" href="#">NoSQL databases</a></li> | |||
|  | <li class="toctree-l5"><a class="reference internal" href="search-indexer-engines.html">Local Search APIs</a></li> | |||
|  | <li class="toctree-l5"><a class="reference internal" href="sql-engines.html">SQL Engines</a></li> | |||
|  | </ul> | |||
|  | </li> | |||
|  | <li class="toctree-l4"><a class="reference internal" href="../index.html#online-url-search">Online URL Search</a></li> | |||
|  | <li class="toctree-l4"><a class="reference internal" href="../index.html#online-currency">Online Currency</a></li> | |||
|  | <li class="toctree-l4"><a class="reference internal" href="../index.html#online-dictionary">Online Dictionary</a></li> | |||
|  | </ul> | |||
|  | </li> | |||
|  | </ul> | |||
|  | </li> | |||
|  | <li class="toctree-l2"><a class="reference internal" href="../../result_types/index.html">Result Types</a></li> | |||
|  | <li class="toctree-l2"><a class="reference internal" href="../../templates.html">Simple Theme Templates</a></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/index.html">Plugins</a></li> | |||
|  | <li class="toctree-l2"><a class="reference internal" href="../../answerers/index.html">Answerers</a></li> | |||
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