NAME

    Blockchain::Ethereum::ABI - ABI utility for encoding/decoding ethereum
    contract arguments

VERSION

    version 0.018

SYNOPSIS

    The Contract Application Binary Interface (ABI) is the standard way to
    interact with contracts (Ethereum), this module aims to be an utility
    to encode/decode the given data according ABI type specification.

    Supports:

      * address

      * bool

      * bytes(\d+)?

      * (u)?int(\d+)?

      * string

      * tuple

    Also arrays ((\[(\d+)?\])+)? for the above mentioned types.

    Encoding:

        my $encoder = Blockchain::Ethereum::ABI::Encoder->new();
        $encoder->function('test')
            # string
            ->append(string => 'Hello, World!')
            # bytes
            ->append(bytes => unpack("H*", 'Hello, World!'))
            # tuple
            ->append('(uint256,address)' => [75000000000000, '0x0000000000000000000000000000000000000000'])
            # arrays
            ->append('bool[]', [1, 0, 1, 0])
            # multidimensional arrays
            ->append('uint256[][][2]', [[[1]], [[2]]])
            # tuples arrays and tuples inside tuples
            ->append('((int256)[2])' => [[[1], [2]]])->encode;

    Decoding

        my $decoder = Blockchain::Ethereum::ABI::Decoder->new();
        $decoder
            ->append('uint256')
            ->append('bytes[]')
            ->decode('0x...');

AUTHOR

    Reginaldo Costa <refeco@cpan.org>

COPYRIGHT AND LICENSE

    This software is Copyright (c) 2022 by REFECO.

    This is free software, licensed under:

      The MIT (X11) License

