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Actions

Launch the current wallet​

await _w3mService.launchConnectedWallet();

Send a request​

await _w3mService.web3App!.request(
  topic: _w3mService.session.topic,
  chainId: 'eip155:1',
  request: SessionRequestParams(
    method: 'personal_sign',
    params: ['Sign this', '0xdeadbeef'],
  ),
);

A list of all available methods can be found eth_constants.dart file, which is already exported for you to use directly from web3modal package.

List of approved chains by the connected wallet​

_w3mService.getApprovedChains();

List of approved methods by connected wallet​

_w3mService.getApprovedMethods();

List of approved events by the connected wallet​

_w3mService.getApprovedEvents();

How to Read a contract​

In order to interact with Contracts, Web3Modal relies on web3dart package.

This is a simple example on how to interact with TetherToken contract.

Future<void> testTetherTokenContract() async {
  // Create a Web3Client by passing a chain rpcUrl and an http client
  final ethClient = Web3Client('https://eth.drpc.org', http.Client());

  // Create DeployedContract object using contract's ABI and address
  final deployedContract = DeployedContract(
    ContractAbi.fromJson(
      jsonEncode(ContractDetails.readContractAbi),
      'TetherToken',
    ),
    EthereumAddress.fromHex(ContractDetails.contractAddress),
  );

  // Query contract's functions
  final nameFunction = deployedContract.function('name');
  final totalSupplyFunction = deployedContract.function('totalSupply');
  final balanceFunction = deployedContract.function('balanceOf');

  final nameResult = await ethClient.call(
    contract: deployedContract,
    function: nameFunction,
    params: [],
  );
  debugPrint('name: ${nameResult.first}');

  final totalSupply = await ethClient.call(
    contract: deployedContract,
    function: totalSupplyFunction,
    params: [],
  );
  debugPrint('totalSupply: ${totalSupply.first}');

  final balanceOf = await ethClient.call(
    contract: deployedContract,
    function: balanceFunction,
    params: [
      // Vitalik address as an example
      EthereumAddress.fromHex('0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045'),
    ],
  );
  debugPrint('balanceOf: ${balanceOf.first}');
}

For more information about how to interact with conctracts please refer to web3dart

For a complete example app check out the example folder for Web3Modal