Struct ContractCallHandler

pub struct ContractCallHandler<D> {
    pub contract_call: ContractCall,
    pub tx_parameters: TxParameters,
    pub wallet: WalletUnlocked,
    pub provider: Provider,
    pub datatype: PhantomData<D>,
    pub log_decoder: LogDecoder,
}

Helper that handles submitting a call to a client and formatting the response

Fields

contract_call: ContractCall

tx_parameters: TxParameters

wallet: WalletUnlocked

provider: Provider

datatype: PhantomData<D>

log_decoder: LogDecoder

Implementations

impl<D> ContractCallHandler<D>

where D: Tokenizable + Debug,

pub fn set_contracts(self, contract_ids: &[Bech32ContractId]) -> Self

Sets external contracts as dependencies to this contract’s call. Effectively, this will be used to create Input::Contract/Output::Contract pairs and set them into the transaction. Note that this is a builder method, i.e. use it as a chain:

my_contract_instance.my_method(...).set_contracts(&[another_contract_id]).call()

pub fn append_contract(self, contract_id: Bech32ContractId) -> Self

Appends additional external contracts as dependencies to this contract’s call. Effectively, this will be used to create additional Input::Contract/Output::Contract pairs and set them into the transaction. Note that this is a builder method, i.e. use it as a chain:

my_contract_instance.my_method(...).append_contracts(additional_contract_id).call()

pub fn tx_params(self, params: TxParameters) -> Self

Sets the transaction parameters for a given transaction. Note that this is a builder method, i.e. use it as a chain:

let params = TxParameters { gas_price: 100, gas_limit: 1000000 };
my_contract_instance.my_method(...).tx_params(params).call()

pub fn call_params(self, params: CallParameters) -> Self

Sets the call parameters for a given contract call. Note that this is a builder method, i.e. use it as a chain:

let params = CallParameters { amount: 1, asset_id: BASE_ASSET_ID };
my_contract_instance.my_method(...).call_params(params).call()

pub fn append_variable_outputs(self, num: u64) -> Self

Appends num Output::Variables to the transaction. Note that this is a builder method, i.e. use it as a chain:

my_contract_instance.my_method(...).add_variable_outputs(num).call()

pub fn append_message_outputs(self, num: u64) -> Self

Appends num Output::Messages to the transaction. Note that this is a builder method, i.e. use it as a chain:

my_contract_instance.my_method(...).add_message_outputs(num).call()

pub async fn get_executable_call(&self) -> Result<ExecutableFuelCall, Error>

Returns the script that executes the contract call

pub async fn call(self) -> Result<FuelCallResponse<D>, Error>

Call a contract’s method on the node, in a state-modifying manner.

pub async fn simulate(self) -> Result<FuelCallResponse<D>, Error>

Call a contract’s method on the node, in a simulated manner, meaning the state of the blockchain is not modified but simulated. It is the same as the call method because the API is more user-friendly this way.

pub async fn estimate_tx_dependencies( self, max_attempts: Option<u64>, ) -> Result<Self, Error>

Simulates the call and attempts to resolve missing tx dependencies. Forwards the received error if it cannot be fixed.

pub async fn estimate_transaction_cost( &self, tolerance: Option<f64>, ) -> Result<TransactionCost, Error>

Get a contract’s estimated cost

pub fn get_response( &self, receipts: Vec<Receipt>, ) -> Result<FuelCallResponse<D>, Error>

Create a FuelCallResponse from call receipts

Trait Implementations

impl<D: Debug> Debug for ContractCallHandler<D>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.