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My task is to implement data discovery and download starting from a CSW catalogue based on GeoNetwork. I got into the GetCapabilities of it but I do not understand how to move from the metadata catalogue of CSW to the download operation.

Which is the CSW type of query to build to discover the available products?

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  • As it stands I think your question would benefit from being heavily revised to try and make what you are asking clearer. I recommend reviewing meta.gis.stackexchange.com/a/3353/115 for tips on how to structure a good question.
    – PolyGeo
    Jan 20, 2020 at 0:58
  • Not CSW, but with GeoNetwork if you want to get a list of all available records, another thing you can do is use the sitemap ~ ..://your-server/metadata/srv/eng/portal.sitemap.
    – nmtoken
    Apr 5, 2020 at 8:59

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Typically you would use the CSW GetRecords operation, which allows to to filter on location, properties, and sorting/paging. You can find numerous examples (for any CSW) from the pycsw tests.

In addition, checkout the sample pycsw viewer for an example application. Be sure to view the HTML source and enable to web console to see client/server communication of the CSW request/response patterns.

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