a cross language implementation of coinpaprika's api for speedy and efficient data transfer / streaming.
grpc uses a single connection over http2 to transfer data, so there is less data transferred, and it is done using protobufs which is a buffer structure so you don't have string parsing then object parsing in whichever language you're in like http.
protos/v1.proto folder has the protobuf definition. server folder has the server. client has an example of what a client might look like, which is used in the tests/unit files.
based on the docs available here: v1.5