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<div class="section" id="enable-local-fdsnws-server">
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<span id="tutorials-servefdsnws"></span><h1>Enable local FDSNWS server<a class="headerlink" href="#enable-local-fdsnws-server" title="Permalink to this headline">¶</a></h1>
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<p>You will …</p>
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<ul class="simple">
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<li><p>Enable FDSN web service by <a class="reference internal" href="../../apps/fdsnws.html#fdsnws"><span class="std std-ref">fdsnws</span></a> to serve waveforms and inventory for
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a configured station</p></li>
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</ul>
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<p>Pre-requisites for this tutorial:</p>
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<ul class="simple">
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<li><p>Tutorial on <a class="reference internal" href="archiving.html#tutorials-archiving"><span class="std std-ref">Set up local waveform archiving</span></a></p></li>
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</ul>
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<p>Afterwards/Results/Outcomes:</p>
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<ul class="simple">
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<li><p>The station meta data and waveforms are available from a local web server</p></li>
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</ul>
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<p>Time range estimate:</p>
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<ul class="simple">
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<li><p>10 minutes</p></li>
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</ul>
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<hr class="docutils" />
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<p>By default, <a class="reference internal" href="../../apps/fdsnws.html#fdsnws"><span class="std std-ref">fdsnws</span></a> will serve the three FDSN web services</p>
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<ul class="simple">
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<li><p>fdsnws-dataselect</p></li>
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<li><p>fdsnws-event</p></li>
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<li><p>fdsnws-station</p></li>
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</ul>
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<p>on a server running locally on port 8080.</p>
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<p>The additional <em>availability</em> feature allows users to obtain information
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on continuous data segments in the waveform archive.
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This information is written to the
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<a class="reference internal" href="../concepts/database.html#concepts-database"><span class="std std-ref">database</span></a> by <a class="reference internal" href="../../apps/scardac.html#scardac"><span class="std std-ref">scardac</span></a>.
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To active the availability feature set <a class="reference internal" href="../../apps/fdsnws.html#confval-serveAvailability"><code class="xref std std-confval docutils literal notranslate"><span class="pre">serveAvailability</span></code></a> and
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<a class="reference internal" href="../../apps/fdsnws.html#confval-dataAvailability.enable"><code class="xref std std-confval docutils literal notranslate"><span class="pre">dataAvailability.enable</span></code></a> to true.
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The availability information can be retrieved using <a class="reference internal" href="../../apps/scxmldump.html#scxmldump"><span class="std std-ref">scxmldump</span></a> or <a class="reference internal" href="../../apps/fdsnws.html#fdsnws"><span class="std std-ref">fdsnws</span></a>.</p>
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<div class="section" id="set-up">
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<h2>Set-up<a class="headerlink" href="#set-up" title="Permalink to this headline">¶</a></h2>
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<ol class="arabic">
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<li><p>Configure <a class="reference internal" href="../../apps/fdsnws.html#fdsnws"><span class="std std-ref">fdsnws</span></a>:</p>
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<ul class="simple">
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<li><p>set the <a class="reference internal" href="../concepts/recordstream.html#concepts-recordstream"><span class="std std-ref">RecordStream</span></a> to point to archived data.</p></li>
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<li><p>configured and enable the desired services.</p></li>
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</ul>
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</li>
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<li><p>Enable and start fdsnws locally:</p>
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<ul>
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<li><p>in <a class="reference internal" href="../../apps/scconfig.html#scconfig"><span class="std std-ref">scconfig</span></a>, go to the System tab.
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Click on the line for the “fdsnws” module, and press “Enable module(s)”.
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Then restart SeisComP.</p></li>
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<li><p>or from the command line</p>
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<div class="highlight-sh notranslate"><div class="highlight"><pre><span></span>$ seiscomp <span class="nb">enable</span> fdsnws
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$ seiscomp start fdsnws
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</pre></div>
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</div>
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</li>
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</ul>
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</li>
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<li><p>Test by <a class="reference internal" href="#tutorials-servefdsnws-visit"><span class="std std-ref">visiting the locally started fdsnws</span></a>.</p></li>
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</ol>
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<p>Logging information goes to <code class="file docutils literal notranslate"><span class="pre">~/.seiscomp/log/fdsnws.log</span></code> by default.
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Information about requests handled goes to the file named in <cite>accessLog</cite>,
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if you set this.</p>
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<p>To see the available configuration options, go to the Modules tab in
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<a class="reference internal" href="../../apps/scconfig.html#scconfig"><span class="std std-ref">scconfig</span></a>.
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Under Utilities open “fdsnws” to reveal the options.
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To disable fdsnws-event, for instance, unlock the “serveEvent” area
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and uncheck this parameter.</p>
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<p>You can limit the choice of stations shared to be less than what is in your
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SeisComP <a class="reference internal" href="../concepts/inventory.html#concepts-inventory"><span class="std std-ref">inventory</span></a> using the <cite>allowRestricted</cite>,
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<cite>dataSelectFilter</cite> and <cite>stationFilter</cite> options.</p>
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</div>
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<div class="section" id="visiting-the-service">
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<span id="tutorials-servefdsnws-visit"></span><h2>Visiting the Service<a class="headerlink" href="#visiting-the-service" title="Permalink to this headline">¶</a></h2>
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<p>Once <a class="reference internal" href="../../apps/fdsnws.html#fdsnws"><span class="std std-ref">fdsnws</span></a> is running, you can visit the local web server
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that it runs.
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In your browser, visit <a class="reference external" href="http://localhost:8080/fdsnws/dataselect/1/">http://localhost:8080/fdsnws/dataselect/1/</a></p>
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<div class="figure align-center" id="id2">
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<a class="reference internal image-reference" href="../../_images/servefdsnws_dataselect.png"><img alt="../../_images/servefdsnws_dataselect.png" src="../../_images/servefdsnws_dataselect.png" style="width: 16cm;" /></a>
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<p class="caption"><span class="caption-text">Information screen shown by fdsnws-dataselect at
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<a class="reference external" href="http://localhost:8080/fdsnws/dataselect/1/">http://localhost:8080/fdsnws/dataselect/1/</a></span><a class="headerlink" href="#id2" title="Permalink to this image">¶</a></p>
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</div>
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</div>
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<div class="section" id="check-it-works">
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<h2>Check it Works<a class="headerlink" href="#check-it-works" title="Permalink to this headline">¶</a></h2>
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<ul>
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<li><p>If you visit the URL <a class="reference external" href="http://localhost:8080/fdsnws/dataselect/1/version">http://localhost:8080/fdsnws/dataselect/1/version</a>
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you should receive a version number string - currently <cite>1.1.0</cite>.</p></li>
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<li><p>To view all activated services visit <a class="reference external" href="http://localhost:8080/fdsnws/">http://localhost:8080/fdsnws/</a></p></li>
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<li><p>The fdsnws-station service should give a list of networks configured
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and served by the service, e.g. visiting
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<a class="reference external" href="http://localhost:8080/fdsnws/station/1/query?level=network&format=text">http://localhost:8080/fdsnws/station/1/query?level=network&format=text</a>
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produces</p>
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<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span><span class="c1">#Network|Description|StartTime|EndTime|TotalStations</span>
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GE<span class="p">|</span>GEOFON Program, GFZ Potsdam, Germany<span class="p">|</span><span class="m">1993</span>-01-01T00:00:00<span class="o">||</span><span class="m">84</span>
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</pre></div>
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</div>
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<p>Omitting the <cite>format=text</cite> argument in the query string of the above URL
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results in the service returning a StationXML file.</p>
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</li>
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</ul>
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<div class="figure align-center" id="id3">
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<a class="reference internal image-reference" href="../../_images/servefdsnws_stationxml.png"><img alt="../../_images/servefdsnws_stationxml.png" src="../../_images/servefdsnws_stationxml.png" style="width: 16cm;" /></a>
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<p class="caption"><span class="caption-text">Example of StationXML returned by the fdsnws-station service at</span><a class="headerlink" href="#id3" title="Permalink to this image">¶</a></p>
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<div class="legend">
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<p><a class="reference external" href="http://localhost:8080/fdsnws/station/1/query?level=network">http://localhost:8080/fdsnws/station/1/query?level=network</a></p>
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</div>
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</div>
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</div>
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<div class="section" id="further-information">
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<h2>Further Information<a class="headerlink" href="#further-information" title="Permalink to this headline">¶</a></h2>
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<ul class="simple">
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<li><p>The <a class="reference external" href="https://geofon.gfz-potsdam.de/waveform/builder.php">URL Builder at GEOFON</a>
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lets you fill out a form to tailor your request.
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The URL to use to make your request is displayed at the bottom of that page.</p></li>
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<li><p>More example requests are at the
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<a class="reference external" href="https://geofon.gfz-potsdam.de/waveform/webservices.php">FDSNWS description at GEOFON</a></p></li>
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<li><p>The FDSN Web Services specification document <span id="id1">[<a class="reference internal" href="../references.html#id102" title="FDSN Web Service Specifications. International Federation of Digital Seismograph Networks. URL: http://www.fdsn.org/webservices/FDSN-WS-Specifications-1.2.pdf.">5</a>]</span> provides the
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technical documentation and examples.</p></li>
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</ul>
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</div>
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<div class="section" id="final-tests">
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<h2>Final Tests<a class="headerlink" href="#final-tests" title="Permalink to this headline">¶</a></h2>
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<ul>
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<li><p>The station should now be visible when you query your local fdsnws instance.
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In your browser, visit
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<a class="reference external" href="http://localhost:8080/fdsnws/station/1/query?format=text">http://localhost:8080/fdsnws/station/1/query?format=text</a>
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to see a list of all channels available from your fdsnws server.</p></li>
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<li><p>Request waveform data like this:</p>
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<p><a class="reference external" href="http://localhost:8080/fdsnws/dataselect/1/query?start=2020-01-01T01:01:01&end=2020-01-01T02:00:00">http://localhost:8080/fdsnws/dataselect/1/query?start=2020-01-01T01:01:01&end=2020-01-01T02:00:00</a></p>
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<p>Don’t forget to adjust your start and end times to match the data
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actually present in your archive.
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The above example is just for the first hour of 2020.</p>
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</li>
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</ul>
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<h3><a href="../../index.html">Table of Contents</a></h3>
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<ul>
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<li><a class="reference internal" href="#">Enable local FDSNWS server</a><ul>
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<li><a class="reference internal" href="#set-up">Set-up</a></li>
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<li><a class="reference internal" href="#visiting-the-service">Visiting the Service</a></li>
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<li><a class="reference internal" href="#check-it-works">Check it Works</a></li>
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<li><a class="reference internal" href="#further-information">Further Information</a></li>
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<li><a class="reference internal" href="#final-tests">Final Tests</a></li>
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<h4>Previous topic</h4>
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<p class="topless"><a href="geofon_waveforms.html"
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title="previous chapter">Add real-time stations from GEOFON</a></p>
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<h4>Next topic</h4>
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<p class="topless"><a href="waveformplayback.html"
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title="next chapter">Play back archived waveforms</a></p>
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