ethereum-client-workaround-helpers.php

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<?php
function eth_workaround_eth_coinbase($val)
{
    // WORKAROUND: Catch a "405 Method Not Allowed'.
    if (isset($val['error']) && $val['error'] && $val['code'] == 405) {
        return '0x0000000000000000000000000000000000000000';
    } else {
        return $val;
    }
}

function eth_workaround_net_listening($val)
{
    // WORKAROUND: eth_protocolVersion is NULL: Probably testrpc.
    if ($val == 'true') {
        return '0x0000000000000000000000000000000000000000000000000000000000000001';
    } else {
        return $val;
    }
}

function eth_workaround_ethereum_datatype_transaction(array $values)
{
    if (isset($values['to']) && $values['to'] === '0x0') {
        $values['to'] = null;
    }
    return $values;
}

function eth_workaround_ethereum_datatype_filterchange(array $values)
{
    if (isset($values['data']) && $values['data'] === '0x') {
        $values['data'] = null;
    }
    return $values;
}