Function usesStreamEnvelope

grpc/codegen/service_data.go:1352–1354

usesStreamEnvelope reports whether the transport needs a typed stream envelope to carry both the one-shot method payload and streaming payload items.

(e *expr.GRPCEndpointExpr)

// envelope to carry both the one-shot method payload and streaming payload
// items.
func usesStreamEnvelope(e *expr.GRPCEndpointExpr) bool {
	return e.MethodExpr.IsPayloadStreaming() && !isEmpty(e.Request.Type)
}

// makeProtoBufStreamEnvelope builds the protobuf stream envelope that carries
// the initial request payload frame and subsequent stream item frames.