debug.patch

diff --git a/src/ui.c b/src/ui.c
index 167b3c2..35ecefe 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -181,6 +181,11 @@ int BarUiPianoCall (BarApp_t * const app, PianoRequestType_t type,
 			PianoDestroyRequest (&req);
 			return 0;
 		}
+		FILE *debug = fopen ("debug.json", "a");
+		assert (debug != NULL);
+		fputs (req.responseData, debug);
+		fputs ("\n", debug);
+		fclose (debug);
 
 		*pRet = PianoResponse (&app->ph, &req);
 		if (*pRet != PIANO_RET_CONTINUE_REQUEST) {