POST not supported in SPARQL query service

[micheldumontier]

The SPARQL service (https://bioregistry.io/sparql) will accept a GET request, but not a POST request, both of which are required. particularly important for federated sparql queries.

https://www.w3.org/TR/sparql11-protocol/#query-operation

example: https://api.triplydb.com/s/IyHSVl06Ei