Geographic Information Systems Asked by kazik on November 8, 2020
I’d like to get a list of all metadata from GeoNetwork. According to this manual https://geonetwork-opensource.org/manuals/2.10.4/eng/developer/xml_services/metadata_xml_search_retrieve.html#search-metadata-xml-search I’m using this curl command
curl -X POST -u user:pass http://geonetwork_server/geonetwork/srv/eng/xml.search
I want to do it using Python, so I’m using requests to send POST request to the same url as above. I am also sending this string as ‘data’ parameter of Python’s POST request:
<?xml version="1.0" encoding="UTF-8"?><request/>
The response comes with this element, among others:
<response from="1" to="100" selected="0" maxPageSize="100">
I’d like to get list of all metadata. The above request returns only 100 GeoNetwork records. How to get whole list, or another page of this list?
Is this link from above the official documentation for latest GeoNetwork version? I am using GN 3.10.
You can get a list of all metadata in a GeoNetwork instance by looking at the sitemap.
The location of the sitemap in GeoNetwork has has changed over time but you can find it by looking at the robots.txt file.
GeoNetwork generates one at:
http://geonetwork_server/geonetwork/robots.txt
GN 3.10.n has a site map at:
http://geonetwork_server/geonetwork/srv/api/sitemap
GN 2.10.n had a sitemap at:
http://geonetwork_server/geonetwork/srv/eng/portal.sitemap
If you want to go the route of CSW then you can use a GetRecords POST request like:
<?xml version="1.0"?>
<csw:GetRecords
xmlns:csw="http://www.opengis.net/cat/csw/2.0.2"
xmlns:gmd="http://www.isotc211.org/2005/gmd"
service="CSW"
version="2.0.2"
resultType="results"
maxRecords="25"
startPosition="26">
<csw:Query typeNames="gmd:MD_Metadata">
<csw:Constraint version="1.1.0">
<Filter xmlns="http://www.opengis.net/ogc"/>
</csw:Constraint>
</csw:Query>
</csw:GetRecords>
with Content-Type: application/xml header
to http://geonetwork_server/geonetwork/srv/eng/csw
To get records 26 to 51 and repeat...
If this file was called getrecords-25to51.xml then you could use a POST through cURL like:
curl -X POST -H "Content-Type: application/xml" --data-binary "@getrecords-25to51.xml" http://geonetwork_server/geonetwork/srv/eng/csw
or even just
curl -H "Content-Type: application/xml" --data-binary "@getrecords-25to51.xml" http://geonetwork_server/geonetwork/srv/eng/csw
Correct answer by nmtoken on November 8, 2020
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