Add GSNSigner

Hi,

Is there a plan to have working integration with GSNProvider? I’ve made some tryouts and that didn’t work. An example:

const ethers = require('ethers');
const { GSNProvider } = require('@openzeppelin/gsn-provider');
const Web3 = require('web3');

const WEB3_PROVIDER = 'http://localhost:8545';
const web3 = new Web3(WEB3_PROVIDER);
const gsnProvider = new GSNProvider(WEB3_PROVIDER, { signKey: privateKey });
web3.setProvider(gsnProvider);

const provider = new ethers.providers.Web3Provider(web3.currentProvider);
const wallet = new ethers.Wallet(privateKey, provider);

const sampleContract = new ethers.Contract(ADDRESS, ABI, wallet);
await sampleContract.someWriteFunction();
// Error: "Error: sender doesn't have enough funds to send tx. The upfront cost is: XXXXXXX and the sender's account only has: 0"

Thanks!

[yuetloo]

Looking into this issue at the moment. One of the reasons the GSNProvider does not work with ethers web3Provider currently because GSNProvider only passes eth_sendTransaction, eth_estimateGas, eth_getTransactionReceipt, to the relayer and ethers uses eth_sendRawTransaction.

On Apr 1, 2020, at 6:53 PM, Matt [e-mail] wrote:

Hey! Just wanted to see what the status of this was? I’d love to have support for the @openzeppelin/gsn-provider package referenced above. I pretty much exclusively use ethers, but always have to bring in web3 just for GSN support.

@ricmoo https://github.com/ricmoo I believe your example above would work if we had a private key, but if we only have the signer I don’t think that approach works?

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[Benjythebee]

Any update on this? Saw this PR, but it looks like it’s been given up on? https://github.com/ethers-io/ethers.js/pull/836