Module: EthereumUnitConverter

Defined in:
lib/ethereum_unit_converter.rb,
lib/ethereum_unit_converter/version.rb

Constant Summary collapse

UNITS = 
{
  wei: 1,
  kwei: 1000,
  ada: 1000,
  femtoether: 1000,
  mwei: 1_000_000,
  babbage: 1_000_000,
  picoether: 1_000_000,
  gwei: 1_000_000_000,
  shannon: 1_000_000_000,
  nanoether: 1_000_000_000,
  nano: 1_000_000_000,
  szabo: 1_000_000_000_000,
  microether: 1_000_000_000_000,
  micro: 1_000_000_000_000,
  finney: 1_000_000_000_000_000,
  milliether: 1_000_000_000_000_000,
  milli: 1_000_000_000_000_000,
  ether: 1_000_000_000_000_000_000,
  eth: 1_000_000_000_000_000_000,
  kether: 1_000_000_000_000_000_000_000,
  grand: 1_000_000_000_000_000_000_000,
  einstein: 1_000_000_000_000_000_000_000,
  mether: 1_000_000_000_000_000_000_000_000,
  gether: 1_000_000_000_000_000_000_000_000_000,
  tether: 1_000_000_000_000_000_000_000_000_000_000
}.freeze
VERSION = 
"0.1.1"

Class Method Summary collapse

Class Method Details

.convert(amount, unit = 'wei', to_unit = 'ether') ⇒ Object 



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# File 'lib/ethereum_unit_converter.rb', line 36

def convert(amount, unit = 'wei', to_unit = 'ether')
  return nil if amount.nil?

  return from_wei(amount, to_unit).to_s('F').delete_suffix('.0') if unit == 'wei'

  from_wei(to_wei(amount, unit), to_unit).to_s('F').delete_suffix('.0')
end

.from_wei(amount, unit = 'ether') ⇒ Object 



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# File 'lib/ethereum_unit_converter.rb', line 54

def from_wei(amount, unit = 'ether')
  return nil if amount.nil?

  begin
    (BigDecimal(amount, 16) / BigDecimal(UNITS[unit.to_sym], 16))
  rescue StandardError => e
    raise e.class
  end
end

.to_wei(amount, unit = 'ether') ⇒ Object 



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# File 'lib/ethereum_unit_converter.rb', line 44

def to_wei(amount, unit = 'ether')
  return nil if amount.nil?

  begin
    BigDecimal(UNITS[unit.to_sym] * amount, 16)
  rescue StandardError => e
    raise e.class
  end
end