Write functions in custom contract failing using infura and WalletConnect

[adamlinscott]

When using walletconnect_dart (with infura) to provide credentials for transactions on mobile devices all write functions are failing with the following JS error.

Uncaught TypeError: Cannot read properties of null (reading 'addressBytes')

It looks to me like an address is not being passed correctly through to the underlying provider which is then throwing this error.

My CustomTransactionSender looks like this:

import 'dart:typed_data';

import 'package:walletconnect_dart/walletconnect_dart.dart';
import 'package:web3dart/crypto.dart';
import 'package:web3dart/web3dart.dart';

class WalletConnectEthereumCredentials extends CustomTransactionSender {
  WalletConnectEthereumCredentials({required this.wcProvider});

  final EthereumWalletConnectProvider wcProvider;

  @override
  Future<EthereumAddress> extractAddress() async {
    return EthereumAddress.fromHex(wcProvider.connector.session.accounts[0]);
  }

  @override
  Future<String> sendTransaction(Transaction transaction) async {
    final String hash = await wcProvider.sendTransaction(
      from: transaction.from!.hex,
      to: transaction.to?.hex,
      data: transaction.data,
      gas: transaction.maxGas,
      gasPrice: transaction.gasPrice?.getInWei,
      value: transaction.value?.getInWei,
      nonce: transaction.nonce,
    );

    return hash;
  }

  @override
  Future<MsgSignature> signToSignature(
    Uint8List payload, {
    int? chainId,
    bool isEIP1559 = false,
  }) async {
    throw UnimplementedError();
  }
}

[LongTien15]

Sir, how do you get credential from wallet_connect_dart session for web3dart Web3Client?