EtherWalletKit: A Swift repository from SteadyAction

Introduction

EtherWalletKit is an Ethereum Wallet Toolkit for iOS.

I hope cryptocurrency and decentralized token economy become more widely adapted. However, some developers hesitate to add a crypto wallet on apps since blockchain and cryptocurrency are complex and require many new knowledge.

Don't worry.
With EtherWalletKit, you can implement an Ethereum wallet without a server and blockchain knowledge.

Features

Released Features

Creating/Importing an account(address and private key)
Checking Ether and tokens balance
Sending Ether and tokens to other addresses
Browsing token information
Testnet(Rinkeby & Ropsten) support
BIP39 Mnemonics

Planned Features

Browsing transaction history
Keystore import / export
Custom configuration / advanced transactions
Multiple accounts
Third party APIs
ERC-721 supports

Installation

CocoaPods

To integrate EtherWalletKit into your Xcode project using CocoaPods, specify it in your Podfile:

pod 'EtherWalletKit'

Quick Start

0. Don't forget to import it

import EtherWalletKit

1. Create an Ethereum Wallet

// Generate a new account with its new password.
try? EtherWallet.account.generateAccount(password: "ABCDEFG")

// Import an existing account from its private key and set its new password.
try? EtherWallet.account.importAccount(privateKey: "1dcbc1d6e0a4587a3a9095984cf051a1bc6ed975f15380a0ac97f01c0c045062, password: "ABCDEFG")

Note: password will be encrypted and saved to the device and it will be required to access the wallet.

2. Get balance

// Get balance of Ether
EtherWallet.balance.etherBalance { balance in
    print(balance)
}

// Get balance of a token
EtherWallet.balance.tokenBalance(contractAddress: "0xd26114cd6EE289AccF82350c8d8487fedB8A0C07") { balance in
    print(balance)
}

3. Send

// send Ether to an address.
EtherWallet.transaction.sendEther(to: "0x7777787C97a35d37Db8E5afb0C92BCfd4F6480bE", amount: "1.5", password: "ABCDEFG") { txHash in
    print(txHash)
}

// send a token to an address.
EtherWallet.transaction.sendToken(to: "0x7777787C97a35d37Db8E5afb0C92BCfd4F6480bE", contractAddress: "0xd26114cd6EE289AccF82350c8d8487fedB8A0C07", amount: "20", password: "ABCDEFG", decimal: 18) { txHash in
    print(txHash)
}

Note: password should be eqaul to the password of wallet created. Also you can put gasPrice as an extra parameter to set gas price for the transcation.

For full documentation, please see THIS.

Notes

Nothing will be sent to a server. Everything will be worked on the local device and Ethereum Blockchain.
You dont need to download and sync the nodes because Infura is doing it for you.
password for wallet is equal to the password for the keystore file. Always make sure a password is long enough for security.

Contribution

Make sure you have a GitHub account
Create a GitHub pull request for your contribution
- Clearly describe the issue or feature.
Fork the repository on GitHub
Create a topic branch from where you want to base your work. (Gitflow is welcome)
- Please avoid working directly on the master branch.
Make sure you have added the necessary tests for your changes and make sure all tests pass.

License

EtherWalletKit is available under the MIT license. See the LICENSE file for more info.

SteadyAction/EtherWalletKit