Search code examples
rcurlsparqlgraphdb

maximum # characters in CURL submission to Ontotext GraphDB?

I have some SPARQL queries that are over 5000 charters. When they are submitted to GraphDB via CURL (specifically httr::GET in R), they don't appear on the query monitor screen, and the (immediate) CURL response is empty.

Is there a way to allow the submission of longer SPARQL queries over CURL to GraphDB? These long queries do work when I submit them directly to the web interface.

I haven't figured out the exact cutoff yet. My longest working query so far is 4779 characters.

I'm working through opportunities to make the queries shorter, like minimizing whitespace, shorter variable names, and possibly overall refactoring.

Solution

  • This highly depends on what curl request you are using, precisely. If you are storing data in the body, there should be no problem.

    Generally, though, I'd recommend going with POST requests for anything sizeable, as suggested in the comments. This avoids issues where the response size is limited by the client.