Reading data from the chain?

I'm trying to use eosjs from React Native to read data from a contract. it's failing and I've documented it here: EOSIO/eosjs#693 however, I'm hoping may be I can use this library. my question is: can I call the get_table_rows method from JsonRpc? your docs make no mention of this and I've looked through the source code but don't understand how it's put together

I see the roadmap contains a line "Add get table"... does it mean I'm SOL?