Class: AtmEth::Ethereum

Inherits:
Object
  • Object
show all
Defined in:
lib/atm/eth/ethereum.rb

Instance Method Summary collapse

Constructor Details

#initialize(provider_url) ⇒ Ethereum

Returns a new instance of Ethereum.



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# File 'lib/atm/eth/ethereum.rb', line 10

def initialize(provider_url)
  @provider_url = provider_url 
end

Instance Method Details

#generate_wallet ⇒ Object 



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# File 'lib/atm/eth/ethereum.rb', line 14

def generate_wallet
  key = SecureRandom.hex(32)
  private_key = "0x#{key}"
  address = generate_address_from_private_key(private_key)

  { address: address, private_key: private_key }
end

#get_balance(address) ⇒ Object 



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# File 'lib/atm/eth/ethereum.rb', line 40

def get_balance(address)
  uri = URI("#{@provider_url}?module=account&action=balance&address=#{address}&tag=latest")
  response = Net::HTTP.get(uri)
  balance_wei = JSON.parse(response)['result']
  wei_to_ether(balance_wei)
end

#get_transaction_status(tx_hash) ⇒ Object 



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# File 'lib/atm/eth/ethereum.rb', line 47

def get_transaction_status(tx_hash)
  uri = URI("#{@provider_url}?module=proxy&action=eth_getTransactionReceipt&txhash=#{tx_hash}")
  response = Net::HTTP.get(uri)
  receipt = JSON.parse(response)['result']

  if receipt.nil?
    'Pending' 
  else
    receipt['status'] == '0x1' ? 'Successful' : 'Failed'
  end
end

#send_transaction_from_wallet(wallet, to, value_in_wei) ⇒ Object 



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# File 'lib/atm/eth/ethereum.rb', line 22

def send_transaction_from_wallet(wallet, to, value_in_wei)
  nonce = get_nonce(wallet[:address])
  gas_price = estimate_gas_price

  transaction_data = {
    nonce: nonce,
    gasPrice: gas_price,
    gasLimit: '0x5208',
    to: to,
    value: value_in_wei,
    data: ''
  }

  signed_transaction = sign_transaction(transaction_data, wallet[:private_key])

  send_raw_transaction(signed_transaction)
end