Add blockchain_wallet.get and blockchain_wallet.all

[ripzery]

Issue/Task Number: #691

Closes #691

Overview

This PR adds 2 endpoints for blockchain wallet which are:

• blockchain_wallet.get to get a single wallet by the given address
• blockchain_wallet.all to get all wallets by given pagination params

Usage

Follows Setup local geth testnet guide then you will need to create a wallet and update tokens' blockchain_address:

1. mix seed --sample
2. iex -S mix
3. Insert blockchain wallet by run the followings command:

EWalletDB.BlockchainWallet.insert(
  %{
    address: "0xprimary_address", 
    type: "hot", 
    name: "Primary wallet", 
    public_key: "12345", 
    originator: %ActivityLogger.System{}
  }
)

Replace address with your wallet address from the geth setup.

4. Update Ethereum's blockchain_address

EWalletDB.Token.update(
  EWalletDB.Token.get_by(name: "Ether"), 
  %{
    blockchain_address: "0x0000000000000000000000000000000000000000", 
    originator: %ActivityLogger.System{}
  }
)

5. Update OmiseGO's blockchain_address

EWalletDB.Token.update(
  EWalletDB.Token.get_by(name: "OmiseGO"), 
  %{
    blockchain_address: "omg_address", 
    originator: %ActivityLogger.System{}
  }
)

Replace omg_address with the omg token address from geth (Run omgtoken.address)

6. Try retrieve a wallet or a list of wallets from /blockchain_wallet.get and /blockchain_wallet.all in the Swagger

[unnawut]

Should BlockchainWallet now enforce association with Account or User? Right now it’s floating without any association so I’m not sure what should be returned/unauthorized for the endpoints.

Also, EWalletDB.GlobalRole and EWalletDB.Role are empty at the moment. Probably needed to make these 2 endpoints fully functioning.

[unnawut]

Also this probably needs an update: EWallet.BlockchainWalletPolicy (see EWallet.WalletPolicy)

[ripzery]

Also this probably needs an update: EWallet.BlockchainWalletPolicy (see EWallet.WalletPolicy)

I think it can be updated when the blockchain_wallet.create is available. But I've just added account and user associated maybe better to add now? 🤔