Cartouche.Erc20.Call (Cartouche v0.2.0)

Module to call operations and receive return value, without sending a transaction.

Summary

Functions

balance_of(token, address, call_opts \\ [])

Calls the balanceOf operation, returning the result of the Ethereum function call.

transfer(token, destination, amount_wei, call_opts \\ [])

Calls the transfer operation, returning the result of the Ethereum function call.

Functions

balance_of(token, address, call_opts \\ [])

@spec balance_of(
  Cartouche.contract(),
  Cartouche.address(),
  Cartouche.Erc20.call_opts()
) ::
  {:ok, number()} | {:error, term()}

Calls the balanceOf operation, returning the result of the Ethereum function call.

Examples

iex> Cartouche.Erc20.Call.balance_of(<<0xCC>>, <<0xDD>>)
{:ok, <<>>}

transfer(token, destination, amount_wei, call_opts \\ [])

@spec transfer(
  Cartouche.contract(),
  Cartouche.address(),
  non_neg_integer(),
  Cartouche.Erc20.call_opts()
) :: {:ok, binary()} | {:error, term()}

Calls the transfer operation, returning the result of the Ethereum function call.

Examples

iex> Cartouche.Erc20.Call.transfer(<<0xCC>>, <<0xDD>>, 100_000)
{:ok, <<>>}