About sending the profiles with gRPC protocol (or http/protobuf?) using Langauge-specific SDK

[jaeheonji]

Hi, Grafana Pyroscope :)

I have a question regarding the Pyroscope specification.

As far as I understand, according to the Pyroscope spec, the server supports both HTTP and gRPC protocols (I believe gRPC is handled via something like the PusherService).

What I’m curious about is that the language-specific SDKs — for example, pyroscope-nodejs or pyroscope-go — seem to send data from the application using only the HTTP protocol (at least based on what I can see in the SDK code).

Even when using the Pyroscope component in Alloy as an intermediary, the sending side (the application) still uses the HTTP spec, so it appears that the receiving side (the server) must also accept data over HTTP.

Is there any way for the SDKs to send data to the Pyroscope server using the gRPC protocol? Or is gRPC support (or maybe OTLP Profiling spec?) planned for the SDKs in the future?