Struct fuels_programs::contract::Contract

pub struct Contract;

Contract is a struct to interface with a contract. That includes things such as compiling, deploying, and running transactions against a contract. The contract has a wallet attribute, used to pay for transactions and sign them. It allows doing calls without passing a wallet/signer each time.

Implementations

impl Contract

pub fn compute_contract_id_and_state_root( compiled_contract: &CompiledContract ) -> (ContractId, Bytes32)

pub fn method_hash<D: Tokenizable + Parameterize + Debug, T: Account>( contract_id: Bech32ContractId, account: T, signature: Selector, args: &[Token], log_decoder: LogDecoder, is_payable: bool ) -> Result<ContractCallHandler<T, D>>

Creates an ABI call based on a function selector and the encoding of its call arguments, which is a slice of Tokens. It returns a prepared ContractCall that can further be used to make the actual transaction. This method is the underlying implementation of the functions generated from an ABI JSON spec, i.e, this is what’s generated:

quote! {
    #doc
    pub fn #name(&self #input) -> #result {
        Contract::method_hash(#tokenized_signature, #arg)
    }
}

For more details see code_gen in fuels-core.

Note that this needs a wallet because the contract instance needs a wallet for the calls

pub async fn deploy( binary_filepath: &str, account: &impl Account, configuration: DeployConfiguration ) -> Result<Bech32ContractId>

Loads a compiled contract and deploys it to a running node

pub fn load_contract( binary_filepath: &str, configuration: DeployConfiguration ) -> Result<CompiledContract>