New firmware WIP

src/firmware_main.cpp

@@ -54,7 +54,10 @@ void httpSetup(SessionManager<Session_T> * sessionManager)
         sessionManager->stopMeasurements();
     });
     server.on("/api/session/data", HTTP_GET, [sessionManager](AsyncWebServerRequest * req) {
-        //TODO
+        StreamingMsgPackEncoder<HttpWriterAdaptor> encoder(&adaptor);
+
+        req->send_P(200, "application/x-msgpack", const uint8_t * content, size_t len)
+
     });