Enable gRPC

[EpicStep]

Hi, can you enable gRPC api?

[alexey-milovidov]

Currently it's not supported for the following reasons:

• the server is behind proxy;
• we need information about the original IP address to correctly calculate quotas;
• so we use tcp_with_proxy_port in config instead of just tcp_port (see PROXYv1 protocol);
• for HTTP, X-Forwarded-For is passed by proxy;
• but there is no support for "GRPC with PROXYv1" protocol.

It means that first we should implement GRPC with PROXYv1 in ClickHouse.

[alexey-milovidov]

My friends from Altinity has a mirror of this server that is not behind proxy.
I will ask, maybe they can enable GRPC.

[EpicStep]

Ok, thanks.