starter code for this demo.

.gitignore

@@ -102,3 +102,7 @@ src/07_mongoengine/service_central_starter/.idea/misc.xml
 src/07_mongoengine/service_central_starter/.idea/modules.xml
 src/07_mongoengine/service_central_starter/.idea/service_central_starter.iml
 src/07_mongoengine/service_central_starter/.idea/inspectionProfiles/profiles_settings.xml
+src/07_mongoengine/service_central/.idea/misc.xml
+src/07_mongoengine/service_central/.idea/modules.xml
+src/07_mongoengine/service_central/.idea/service_central.iml
+src/07_mongoengine/service_central/.idea/inspectionProfiles/profiles_settings.xml

src/07_mongoengine/service_central/service_app.py

@@ -0,0 +1,56 @@
+def main():
+    print_header()
+    user_loop()
+
+
+def print_header():
+    print('----------------------------------------------')
+    print('|                                             |')
+    print('|           SERVICE CENTRAL v.02              |')
+    print('|               demo edition                  |')
+    print('|                                             |')
+    print('----------------------------------------------')
+    print()
+
+
+def user_loop():
+    while True:
+        print("Available actions:")
+        print(" * [a]dd car")
+        print(" * [l]ist cars")
+        print(" * [f]ind car")
+        print(" * perform [s]ervice")
+        print(" * e[x]it")
+        print()
+        ch = input("> ").strip().lower()
+        if ch == 'a':
+            add_car()
+        elif ch == 'l':
+            list_cars()
+        elif ch == 'f':
+            find_car()
+        elif ch == 's':
+            service_car()
+        elif not ch or ch == 'x':
+            print("Goodbye")
+            break
+
+
+def add_car():
+    print("TODO: add_car")
+
+
+def list_cars():
+    print("TODO: list_cars")
+
+
+def find_car():
+    print("TODO: find_car")
+
+
+def service_car():
+    print("TODO: service_car")
+
+
+if __name__ == '__main__':
+    main()