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ContractCreateTransaction.md

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class ContractCreateTransaction extends Transaction

** Java **

var contractId = new ContractCreateTransaction()
    .setAdminKey(operatorKey)
    .setNodeAccountIds(Collections.singletonList(response.nodeId))
    .setGas(2000)
    .setConstructorParameters(new ContractFunctionParameters().addString("Hello from Hedera."))
    .setBytecodeFileId(fileId)
    .setContractMemo("[e2e::ContractCreateTransaction]")
    .execute(client)
    .getReceipt(client)
    .contractId;

** JavaScript **

const response = await new ContractCreateTransaction()
    .setAdminKey(operatorKey)
    .setNodeAccountIds([response.nodeId])
    .setGas(2000)
    .setConstructorParameters(
        new ContractFunctionParameters().addString("Hello from Hedera.")
    )
    .setBytecodeFileId(file)
    .setContractMemo("[e2e::ContractCreateTransaction]")
    .setMaxTransactionFee(new Hbar(20))
    .execute(client);

const receipt = await response.getReceipt(client);
const contractId = receipt.contractId;

** Go **

response, err := hedera.NewContractCreateTransaction().
    SetAdminKey(client.GetOperatorPublicKey()).
    SetNodeAccountIDs([]AccountID{resp.NodeID}).
    SetGas(2000).
    SetConstructorParameters(NewContractFunctionParameters().AddString("hello from hedera")).
    SetBytecodeFileID(fileID).
    SetContractMemo("hedera-sdk-go::TestContractCreateTransaction_Execute").
    Execute(client)
if err != nil {
    println(err.Error())
}

receipt, err := response.GetReceipt(client)
if err != nil {
    println(err.Error())
}

contractId := *receipt.contractID

Constructor

constructor()

Properties

bytecodeFileId: FileId

The FileId of the file containing the smart contract byte code. A copy will be made and held by the contract instance, and have the same expiration time as the instance.

adminKey: Key

The state of the instance and its fields can be modified arbitrarily if adminKey signs a transaction to modify it. If this is null, then such modifications are not possible, and there is no administrator that can override the normal operation of this smart contract instance. Note that if it is created with no admin keys, then there is no administrator to authorize changing the admin keys, so there can never be any admin keys for that instance.

gas: Uint64

Gas to run the constructor.

initialBalance: Hbar

Initial number of tinybars to put into the cryptocurrency account associated with and owned by the smart contract.

proxyAccountId: AccountId

Deprecated: with no replacement

AccountId of the account to which this account is proxy staked. If proxyAccountID is null, or is an invalid account, or is an account that isn't a node, then this account is automatically proxy staked to a node chosen by the network, but without earning payments. If the proxyAccountID account refuses to accept proxy staking , or if it is not currently running a node, then it will behave as if proxyAccountID was null.

autoRenewPeriod: Duration

The instance will charge its account every this many seconds to renew for this long.

constructorParameters: bytes

Parameters to pass to the constructor.

contractMemo: String

The memo that was submitted as part of the contract (max 100 bytes).

stakedNodeAccountId: ?AccountId

ID of the account to which this contract is staking.

stakedNodeId: ?Int64

ID of the node this contract is staked to.

declineStakingReward: bool

If true, the contract declines receiving a staking reward. The default value is false.