Connect app to system via web sockets

Job ID: 33396272

Budget: £20 – £250 GBP

We have a order receiving app which currently connects to our system through API's using web sockets. We need the following features to work on our app.
1- Connect system setting to the app so any changes we make on the system reflect on the app and vice versa.
2- When the app losses internet connection temporarily any new orders are not received by the app unless we do a app refresh this needs to be fixed.
3-The setting screen sometimes fails to load on the front end this needs fixing.
4- We need the receipt to print the same information from the system.
The app is mostly working but we need fix the above.
Please use our refence when replaying TOAPPFIX