- Store process id in temporary variable.

app.py

@@ -2,6 +2,7 @@ import eventlet
 import socketio
 import uuid
 import base64
+import os
 
 import gi
 gi.require_version("FPrint", "2.0")
@@ -51,8 +52,6 @@ def enroll(sessionId, data):
         prt = device.enroll_sync(prt, None, progress_cb=progress, progress_data=sessionId)
         img = prt.serialize()
         sio.emit('fprint-enroll-done', { 'ok': True, "fingerprint": base64.b64encode(img).decode('utf-8'), 'id': str(uuid.uuid4()), 'data': data })
-        with open('adebisi-fa.jpg', 'w+b') as f:
-            f.write(img)
     except Exception as e:
         print({'error': e});
         sio.emit('fprint-enroll-done', { 'ok': False, 'message': e})
@@ -148,4 +147,7 @@ def capture_other(sid, data):
     print({ "event": "capture_other", "data": data })
     pass
 
+with open('/tmp/libfprint-server', 'w') as f:
+    f.write(str(os.getpid()));
+    
 eventlet.wsgi.server(eventlet.listen(('127.0.0.1', 9000), reuse_port=False), app)