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furqansiddiqui / erc20-php

Interact with Ethereum ERC20 Tokens
MIT License
163 stars 96 forks source link

Can we use eth_getBalance with erc20-php? #8

Closed dformdotdk closed 6 years ago

dformdotdk commented 6 years ago

Hi

First of all, thank you for providing this script. It has really helped me with a project I'm working on.

Before sending a transaction I do a balance check, to make sure the account has enough tokens to complete the transfer.

I would like to check the same for ether using eth_getBalance. See https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_getbalance

In essence, I would like to check if the account has enough ether to pay for gas. I can't seem to find any reference to eth_getBalance in your script, so I don't think it's supported ATM, but would it be something you would consider adding?

Thanks again :-)

anthonypaslange commented 6 years ago

You are correct, you can't check the ethereum balance of an address with erc20-php. But you can do it with its dependency.

You could for example use the following code: <?php require_once 'vendor/autoload.php'; $geth = new \EthereumRPC\EthereumRPC('IP', PORT); $balance = $geth->eth()->getBalance('ETHADDRESS'); ?>

dformdotdk commented 6 years ago

Awesome - Thank you @mrpetfreak 👍

furqansiddiqui commented 6 years ago

You should be able to perform nearly all RPC functions available to Ethereum node using my "EthereumRPC" package. However this "erc20-php" package is just an interface for working with ERC20 tokens and it also works on top of same EthereumRPC package.