Ethers.js MetaMask Mobile error: eth_sendTransaction

Not sure where this issue originates - MetaMask, Ethers.js, or here. Apologies if this is the wrong place.

Issue

Attempting to fire a transaction fails with error The method eth_sendTransaction does not exist/is not available.

This flow works for WalletConnect with the test wallet (test.walletconnect.org). It also works well with MetaMask browser extension (ie. not using WalletConnect)

@walletconnect/web3-provider v1.0.13 @ethersproject/providers ^5.0.4

const provider = new WalletConnectProvider({
      infuraId: infuraKey // Required
});

await provider.enable();
const walletProvider = new Web3Provider(provider);

contracts[name] = new Contract(
   CONTRACTS[name][networkName],
    CONTRACTS[name].abi,
    walletProvider
);

const approvalAmount = amountBn || parseUnits("500000", 18);
const tx = await contracts[token].approve(
  spender,
  approvalAmount
);

Discussion

• It looks like ethers.js supports eth_sendTransaction https://github.com/ethers-io/ethers.js/issues/298
• It looks like MetaMask Mobile supports eth_sendTransaction https://github.com/MetaMask/metamask-mobile/blob/aa2895d5c08469c8a23522b455bed55acc8d11a1/app/core/WalletConnect.js#L90
• It looks like WalletConnect should support ethers providers and MetaMask Mobile https://github.com/ethers-io/ethers.js/issues/775

Going to continue researching…

[pi0neerpat]

IT WORKS!!!

    "@ethersproject/contracts": "^5.0.1",
    "@ethersproject/providers": "^5.0.4",
    "@walletconnect/web3-provider": "1.2.0-alpha.0",

[pedrouid]

Could you try the following which we are currently testing?

1. Install pre-release version available on NPM at next tag (v1.2.0-alpha.0)
2. Make sure that you get the Signer from the provider

Example:

const web3Provider = new WalletConnectProvider(..)

const provider = new ethers.providers.Web3Provider(web3Provider)

const tokenContract = new Contract(tokenAddress, tokenAbi, provider.getSigner())