Class CreateContractExtensions

Extension methods for creating smart contracts.

Inheritance

object

CreateContractExtensions

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Hiero

Assembly: Hiero.dll

Syntax

public static class CreateContractExtensions

Methods

CreateContractAsync(ConsensusClient, CreateContractParams, Action<IConsensusContext>?)

Creates a new contract instance with the given create parameters.

Declaration

public static Task<CreateContractReceipt> CreateContractAsync(this ConsensusClient client, CreateContractParams createParameters, Action<IConsensusContext>? configure = null)

Parameters

Type	Name	Description
ConsensusClient	client	The Consensus Node Client executing the contract create.
CreateContractParams	createParameters	Details regarding the contract to instantiate.
Action<IConsensusContext>	configure	Optional callback method providing an opportunity to modify the execution configuration for just this method call. It is executed prior to submitting the request to the network.

Returns

Type	Description
Task<CreateContractReceipt>	A transaction receipt with a description of the newly created contract and receipt information.

Examples

Deploy from bytecode already uploaded to the file service:

// Deploy from bytecode previously uploaded to the file service. Use
// this path for large contracts that exceed the transaction size
// limit. Bytecode must be stored as hex-encoded text, not raw bytes.
var receipt = await client.CreateContractAsync(new CreateContractParams
{
    File = bytecodeFile,
    Administrator = adminEndorsement,
    Gas = 500_000,
    ConstructorArgs = new object[] { "initial" },
    RenewPeriod = TimeSpan.FromDays(90)
});
Console.WriteLine($"Contract: {receipt.Contract}");

Exceptions

Type	Condition
ArgumentOutOfRangeException	If required arguments are missing.
InvalidOperationException	If required context configuration is missing.
PrecheckException	If the gateway node rejected the request upon submission.
ConsensusException	If the network was unable to come to consensus before the duration of the transaction expired.
TransactionException	If the network rejected the create request as invalid or had missing data.