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    <p>Hi,</p>
    <p>Well, taking the error at face value, it seems to be complaining
      that you have:<br>
      <i>REQUEST=Transaction</i></p>
    <p>in the URL. Which is odd because that's exactly what it should be
      (looking at the 1.0.0 spec).</p>
    <p>But at the bottom of your error, it says:</p>
    <p>10:15:17 WARNING [9148]: Service WFS 1.0.0 not found, returning
      default
    </p>
    <p>So I'd suggest that QGIS Server doesn't support transactions for
      WFS 1.0.0 (Transactions support is Optional). Except the QGIS docs
      say they do support Transaction:
<a class="moz-txt-link-freetext" href="https://docs.qgis.org/2.8/en/docs/user_manual/working_with_ogc/ogc_server_support.html">https://docs.qgis.org/2.8/en/docs/user_manual/working_with_ogc/ogc_server_support.html</a>
      - and WFS 1.0.0 seems to be the only version supported by QGIS
      so... are the errors misleading? (I can't seem to readily find
      that page for QGIS 3.4).<br>
    </p>
    <p>The GetCapabilities of the server will tell you if it supports
      Transaction.<br>
    </p>
    <p>Maybe someone who knows QGIS Server (I'm just basing this reply
      off the spec and your error) can comment.<br>
    </p>
    <p>Cheers,</p>
    <p>Jonathan<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 2019-02-01 09:57, Bernhard Ströbl
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:8cf52cb7-0ade-9874-8ca2-104b408fa940@jena.de">Hi all,
      <br>
      <br>
      I try to make an INSERT to QGIS-Server using WFS-T. But every
      insert fails with the server returning "Please check the value of
      the REQUEST parameter"
      <br>
      <br>
      This is the QGIS-server log output (anonymised):
      <br>
      <br>
      10:15:17 INFO Server[9148]: ******************** New request
      ***************
      <br>
      10:15:17 INFO Server[9148]: SERVER_NAME***
      <br>
      10:15:17 INFO Server[9148]: REQUEST_URI/wms/pmt?SERVICE=WFS
      <br>
      10:15:17 INFO Server[9148]: REMOTE_ADDR10.***.***.**
      <br>
      10:15:17 INFO Server[9148]: CONTENT_TYPEtext/xml
      <br>
      10:15:17 INFO Server[9148]: HTTP_USER_AGENTMozilla/5.0
      QGIS/3.4.3-Madeira
      <br>
      10:15:17 INFO Server[9148]: MAP:/var/www/wms/karten/pmt.qgs
      <br>
      10:15:17 INFO Server[9148]: REQUEST:Transaction
      <br>
      10:15:17 INFO Server[9148]: REQUEST_BODY:<Transaction
      xmlns=<a class="moz-txt-link-rfc2396E" href="http://www.opengis.net/wfs">"http://www.opengis.net/wfs"</a> version="1.0.0" service="WFS"
      xsi:schemaLocation=<a class="moz-txt-link-rfc2396E" href="http://www.qgis.org/gmlhttps://pmt-map.jena.de:443/wms/pmt?SERVICE=WFS&amp;REQUEST=DescribeFeatureType&amp;VERSION=1.0.0&amp;TYPENAME=projekt_pt">"http://www.qgis.org/gml
https://pmt-map.jena.de:443/wms/pmt?SERVICE=WFS&amp;REQUEST=DescribeFeatureType&amp;VERSION=1.0.0&amp;TYPENAME=projekt_pt"</a>
      xmlns:gml=<a class="moz-txt-link-rfc2396E" href="http://www.opengis.net/gml">"http://www.opengis.net/gml"</a>
      xmlns:xsi=<a class="moz-txt-link-rfc2396E" href="http://www.w3.org/2001/XMLSchema-instance">"http://www.w3.org/2001/XMLSchema-instance"</a>><Insert
      xmlns=<a class="moz-txt-link-rfc2396E" href="http://www.opengis.net/wfs">"http://www.opengis.net/wfs"</a>><projekt_pt
      xmlns=<a class="moz-txt-link-rfc2396E" href="http://www.qgis.org/gml">"http://www.qgis.org/gml"</a>><geometry
      xmlns=<a class="moz-txt-link-rfc2396E" href="http://www.qgis.org/gml">"http://www.qgis.org/gml"</a>><gml:Point
      srsName="EPSG:25832"><gml:coordinates ts=" "
cs=",">681077.95823665894567966,5643649.18793503474444151</gml:coordinates></gml:Point></geometry></projekt_pt></Insert></Transaction><br>
      10:15:17 INFO Server[9148]: SCHEMALOCATION:<a class="moz-txt-link-freetext" href="http://www.qgis.org/gml">http://www.qgis.org/gml</a>
<a class="moz-txt-link-freetext" href="https://pmt-map.jena.de:443/wms/pmt?SERVICE=WFS&REQUEST=DescribeFeatureType&VERSION=1.0.0&TYPENAME=projekt_pt">https://pmt-map.jena.de:443/wms/pmt?SERVICE=WFS&REQUEST=DescribeFeatureType&VERSION=1.0.0&TYPENAME=projekt_pt</a>
      <br>
      10:15:17 INFO Server[9148]: SERVICE:WFS
      <br>
      10:15:17 INFO Server[9148]: VERSION:1.0.0
      <br>
      10:15:17 WARNING [9148]: Service WFS 1.0.0 not found, returning
      default
      <br>
      10:15:17 INFO Server[9148]: Request finished in 1 ms
      <br>
      <br>
      the apache error log says:
      <br>
      QNetworkDiskCache::prepare() unable to open temporary file
      <br>
      <br>
      any help appreciated
      <br>
      <br>
      System: QGIS-Server 3.4.4 on Ubuntu/Apache, WFS-Client QGIS
      Desktop 3.4.3
      <br>
      <br>
      Bernhard
      <br>
      <br>
      <br>
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