ExW3.Utils (exw3 v0.6.1) View Source

Link to this section Summary

Types

eth_hex()

invalid_hex_string()

negative_integer()

non_integer()

Functions

bytes_to_string(bytes)

converts Ethereum style bytes to string

format_address(address)

Converts an Ethereum address into a form that can be used by the ABI encoder

from_wei(num, key)

Converts the value to whatever unit key is provided. See unit map for details.

hex_to_integer(hex)

Convert eth hex string to integer

integer_to_hex(i)

Convert an integer to eth hex string

is_valid_checksum_address(address)

Checks if the address is a valid checksummed address

keccak256(str)

Returns a 0x prepended 32 byte hash of the input string

to_address(bytes)

Converts bytes to Ethereum address

to_checksum_address(address)

Returns a checksummed address conforming to EIP-55

to_wei(num, key)

Converts the value to whatever unit key is provided. See unit map for details.

Link to this section Types

eth_hex()

Specs

eth_hex() :: String.t()

invalid_hex_string()

Specs

invalid_hex_string() :: :invalid_hex_string

negative_integer()

Specs

negative_integer() :: :negative_integer

non_integer()

Specs

non_integer() :: :non_integer

Link to this section Functions

bytes_to_string(bytes)

Specs

bytes_to_string(binary()) :: binary()

converts Ethereum style bytes to string

format_address(address)

Specs

format_address(binary()) :: integer()

Converts an Ethereum address into a form that can be used by the ABI encoder

from_wei(num, key)

Specs

from_wei(integer(), atom()) :: integer() | float() | no_return()

Converts the value to whatever unit key is provided. See unit map for details.

hex_to_integer(hex)

Specs

hex_to_integer(eth_hex()) ::
  {:ok, non_neg_integer()} | {:error, invalid_hex_string()}

Convert eth hex string to integer

integer_to_hex(i)

Specs

integer_to_hex(non_neg_integer()) ::
  {:ok, eth_hex()} | {:error, negative_integer() | non_integer()}

Convert an integer to eth hex string

is_valid_checksum_address(address)

Specs

is_valid_checksum_address(String.t()) :: boolean()

Checks if the address is a valid checksummed address

keccak256(str)

Specs

keccak256(String.t()) :: String.t()

Returns a 0x prepended 32 byte hash of the input string

to_address(bytes)

Specs

to_address(binary()) :: binary()

Converts bytes to Ethereum address

to_checksum_address(address)

Specs

to_checksum_address(String.t()) :: String.t()

Returns a checksummed address conforming to EIP-55

to_wei(num, key)

Specs

to_wei(integer(), atom()) :: integer()

Converts the value to whatever unit key is provided. See unit map for details.