[request] REST-to-RPC

[sonicaghi]

respond to GET requests while mapping them to existing endpoints that are accessed using a POST. Transform the GET parameters into the request body for the POST.

[subnetmarco]

This cannot be implemented until #505 has been implemented, because being able to apply a plugin per specific endpoints will be available in #505.

[linking12]

@sonicaghi @thefosk what about the process of this issue? rest-2-grpc is important for me. our services are implemented by grpc. thanks

[Tieske]

@linking12 It's a complex transformation. But if you want to take a stab at it... contributions are welcome! 😄

[irahardianto]

@linking12 this might help https://github.com/grpc-ecosystem/grpc-gateway

[hanjm]

it seems apisix(also based on openResty) implements grpc-transcode lua plugin (https://github.com/apache/incubator-apisix/tree/master/lua/apisix/plugins/grpc-transcode),
is it possibility to transplant it to kong?