ATM client/RESTful asynchronous web server/client example written in C++.
Client:
A very simple ATM client built on Qt. Source is located in the "Client project/" directory.
The client forward some requests to the web server and reacts to the responses. I had no chance to learn MFC from zero in 3 days so I chose Qt which I used 16 years ago last time (signal-slot still the same as it was in Qt 2 :) ). .cardinfo must be copied to the user’s home folder. .cardinfo is a JSon config file which contains some basic config values for a card. "Url": "http://192.168.0.101/atm/" line must contain the address of the server with / atm/ suffix which is mandatory (at both sides). I developed the client on Mac. Unfortunately I could not compile casablanca on Mac (although it should work by the docs) so I could not use it on the client side.
Server:
Win64 C++ RESTful web service to accept and execute bankcard operation requests. Source is located in the "Server project/" directory.
ATMWebService.exe: The server exe on a windows machine is a pure windows command line app. On Windows 10 it must be run with admin rights as it accepts connections from any network address on port 80. I also had to turn off firewall. It generates the test data from the code, so no config file for it. Compiled into %PROJECTS%\ATMWebService\x64[Debug|Release]\ATMWebService.exe In VS 2015 I used cpprest-..desktop-..140 nu package which is casablanca 2.6.
Used Design Patterns:
Server:
- Singleton
- Factory method
- Strategy
- Web version of Model-View-Controller
Client:
- Model-View-Controller (ATMDialog is the main Controller and also the main view, the subviews are controlled from this class.
- 2 different model classes are used (CardModel for card info and NetworkModel for network/http communication). The ATMDialog also connects these two models as they are independent from each other.
- Delegate Pattern. It is the Mac style delegate pattern (observer pattern restricted to one observer object). NetworkModel notifies its delegate via the NetworkDelegate interface (@protocol in ObjC). ATMDialog implements this protocol to be able to handle finished events.
Copyright (c) 2015 Balazs Kilvady
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