gRPC for Crystal

[proyb6]

Still await for gRPC to get attention for Crystal.

https://grpc.io/

FAQ
https://grpc.io/faq/

The pros that gRPC will soon dominate microservices with ease of development and performance benefits open up across your web applications is enormous.

[RX14]

requires http2, which @ysbaddaden started but isn't production ready.

Making an H2 shard play well with the stdlib (or even including it in the stdlib) likely requires some stdlib work though, see crystal-lang/crystal#6011.

These are all problems which need work before gRPC can be worked on. They'd help other usecases too.

Protobuf seems to be in a working state, see https://github.com/jeromegn/protobuf.cr.

[proyb6]

Will take a look!

In addition, I haven’t found FlatBuffers in Crystal, would this be feasible to build since the benefits is useful for most case.

[alexanderadam]

Duplicate of #88