To write triples to an arbitrary graph from a client using HTTP, it seems that SPARUL INSERT DATA INTO is the only way to do it. However, in the current implementation this compiles SQL, and we cannot insert more than 200 triples before we get "SQL query exceeds the allowed 10000 lines".
However, it doesn't seem necessary to implement INSERT DATA INTO through SQL compilation, since it identifies the graph, and then there are just triples in the curly brackets, so I would guess it could be done like ttlp does, which is extremely fast in Virtuoso.
So, that's my feature request, that it can be reimplemented so that we can insert lots of data using HTTP.
Ivan, please have a look and report
Fixed/committed
(for some reason I can't change the status of the bug)
WIll be part of the upcoming VOS 6.0.1 release