sentry interceptor for grpc-elixir

sentry_interceptor.ex

defmodule GRPCSentry.ServerInterceptor do
  @behaviour GRPC.ServerInterceptor

  def init(opts), do: opts

  def call(req, stream, next, _opts) do
    result = next.(req, stream)
    case result do
      {:error, %{kind: kind, reason: reason, stack: stack}} ->
        exception = Exception.normalize(kind, reason, stack)
        Sentry.capture_exception(
          exception,
          stacktrace: stack,
          event_source: :grpc,
          error_type: kind
        )
      _ -> :ok
    end
    result
  end
end