Create WalletService and update WalletModel

[damoonrashidi]

WalletModel needs the following public method

class WalletValue {
  double amount;
  double value;
}

WalletContents getContents(Wallet wallet);

And WalletService needs the following methods, since they will be pretty different API calls with different methods.

WalletContents _getBitcoinValue(String address);
WalletContents _getEthereumValue(String address);
WalletContents ...

[Deepanshu-Rohilla]

I can work on this. But I am not sure if this project is active now. Please respond to this comment if this project is still active.

[damoonrashidi]

It is! I work on it every other week or so when work is chill. Recently added BCH and BTC wallet balance lookup, and ETH+other coins is already in there now.

So whatever you feel like adding just go right ahead. The generator function and all the boilerplate is already in place

[deveshtiwary19]

Can you assign me this issue! I can work on it if it's still active.

[damoonrashidi]

Sure thing @deveshtiwary19 go right ahead! Let me know if you need any help, it's been a while since I've been in this repo, but I might be able to point you in the right direction if needed.