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ContractCall

ContractCallTransactionBody

Call a function of the given smart contract instance, giving it functionParameters as its inputs. The call can use at maximum the given amount of gas – the paying account will not be charged for any unspent gas.

If this function results in data being stored, an amount of gas is calculated that reflects this storage burden.

The amount of gas used, as well as other attributes of the transaction, e.g. size, number of signatures to be verified, determine the fee for the transaction – which is charged to the paying account.

Field Type Description
contractID ContractID The contract instance to call
gas int64 The maximum amount of gas to use for the call
amount int64 Number of tinybars sent (the function must be payable if this is nonzero)
functionParameters bytes Which function to call, and the parameters to pass to the function