perl ABI

Application Binary Interface (ABI) utility for encoding and decoding solidity smart contract arguments

Table of contents

• Supported types
• Usage
• Installation
• Support and Documentation
• License and Copyright

Supports

• address
• bool
• bytes(\d+)?
• (u)?int(\d+)?
• string
• tuple

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

Usage

my $encoder = Blockchain::Contract::Solidity::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;

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

For more information check this post

Installation

cpanminus

cpanm Blockchain::Contract::Solidity::ABI

make

perl Makefile.PL
make
make test
make install

Support and Documentation

After installing, you can find documentation for this module with the perldoc command.

perldoc Blockchain::Contract::Solidity::ABI

You can also look for information at:

• Search CPAN

License and Copyright

This software is Copyright (c) 2022 by Reginaldo Costa.

This is free software, licensed under:

The Artistic License 2.0 (GPL Compatible)