(This fork implements batched query in JsonRpc spec V2 based on Gorilla's rpc module. Check out the folder named "v2_batch". You should be able to enable the batched query support by changing the import path from "gorilla/rpc/v2" to "agronomhidden/rpc/v2_batch" in your code.)
gorilla/rpc is a foundation for RPC over HTTP services, providing access to the exported methods of an object through HTTP requests.
Read the full documentation here: http://www.gorillatoolkit.org/pkg/rpc