Contract class

A wrapper for interacting with deployed Ethereum contracts through JsonRPCProvider.

Constructors

Contract.new(RPCBase rpc)

Properties

hashCode → int
The hash code for this object.
no setterinherited
rpc → RPCBase
The remote procedure call (RPC) client used to communicate with the bundler.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

deployed(EthereumAddress? address, {BlockNum atBlock = const BlockNum.current()}) → Future<bool>
Asynchronously checks whether a smart contract is deployed at the specified address.
getBalance(EthereumAddress? address, {BlockNum atBlock = const BlockNum.current()}) → Future<EtherAmount>
Asynchronously retrieves the balance of an Ethereum address.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
read(EthereumAddress contractAddress, ContractAbi abi, String methodName, {List? params, EthereumAddress? sender}) → Future<List>
Asynchronously calls a function on a smart contract with the provided parameters.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

encodeERC20ApproveCall(EthereumAddress address, EthereumAddress spender, EtherAmount amount) → Uint8List
Encodes an ERC-20 token approval function call.
encodeERC20TransferCall(EthereumAddress address, EthereumAddress recipient, EtherAmount amount) → Uint8List
Encodes an ERC-20 token transfer function call.
encodeERC721ApproveCall(EthereumAddress contractAddress, EthereumAddress to, BigInt tokenId) → Uint8List
Encodes an ERC-721 token approval function call.
encodeERC721SafeTransferCall(EthereumAddress contractAddress, EthereumAddress from, EthereumAddress to, BigInt tokenId) → Uint8List
Encodes an ERC-721 token safe transfer function call.
encodeFunctionCall(String methodName, EthereumAddress contractAddress, ContractAbi abi, List params) → Uint8List
Encodes a function call for a smart contract.
execute(EthereumAddress walletAddress, {required EthereumAddress to, EtherAmount? amount, Uint8List? innerCallData, bool isSafe = false}) → Uint8List
Encodes a function call to execute a user operation in a smart wallet.
executeBatch({required EthereumAddress walletAddress, required List<EthereumAddress> recipients, List<EtherAmount>? amounts, List<Uint8List>? innerCalls, bool isSafe = false}) → Uint8List
Encodes a function call to execute a batch of operations in a smart wallet.
getContractFunction(String methodName, EthereumAddress contractAddress, ContractAbi abi) → ContractFunction
Retrieves a smart contract function by name from its ABI.
nftApproveUserOperation(EthereumAddress contractAddress, EthereumAddress owner, EthereumAddress spender, BigInt tokenId) → UserOperation
Generates a user operation for approving the transfer of an ERC-721 token.
nftTransferUserOperation(EthereumAddress contractAddress, EthereumAddress owner, EthereumAddress recipient, BigInt tokenId) → UserOperation
Generates a user operation for transferring an ERC-721 token.
tokenApproveUserOperation(EthereumAddress contractAddress, EthereumAddress owner, EthereumAddress spender, EtherAmount amount) → UserOperation
Generates a user operation for approving the transfer of ERC-20 tokens.
tokenTransferUserOperation(EthereumAddress contractAddress, EthereumAddress owner, EthereumAddress recipient, EtherAmount amount) → UserOperation
Generates a user operation for transferring ERC-20 tokens.