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Last modified: Sat Sep 14 14:32:03 2024 +0800

ContractManagement.Deploy Method

Deploys the contract.

Namespace: Neo.SmartContract.Framework.Native

Assembly: Neo.SmartContract.Framework

Syntax

public static extern Contract Deploy(ByteString nefFile, string manifest);
public static extern Contract Deploy(ByteString nefFile, string manifest, object data);

Parameters:

  • nefFile: nef data of the contract in byte array.

  • manifest: Metadata of the contract in Json string.

Example

public class Contract1 : SmartContract.Framework.SmartContract
{
    private static byte[] nef = "4e4546336e656f6e00000000000000000000000000000000000000000000000000000000332e302e302e30000000000000000000000000000000000000000000000000000211407060ba5f".HexToBytes();
    private static string manifest = "{\"name\":\"\",\"groups\":[],\"supportedstandards\":[],\"abi\":{\"methods\":[{\"name\":\"update\",\"parameters\":[],\"offset\":0,\"returntype\":\"Any\",\"safe\":false}],\"events\":[]},\"permissions\":[{\"contract\":\"*\",\"methods\":\"*\"}],\"trusts\":[],\"extra\":null}";

    public static object Deploy()
    {
        Contract contract = ContractManagement.Deploy(nef, manifest);
        return contract.Hash;
    }
}

Response body:

[{
    "type":"ByteString",
    "value":"fbKpbpzeGaTQ5xgyBeVh0JkNcPo="
}]

Response description:

  • ByteString string: the deployed contract hash.

  • Other: failed.

Usually, you can define the method _deploy in the contract and execute the neo-cli command deploy contract.nef to deploy the contract.

public static void _deploy(object data, bool update)
{
    if (update) return;
    // Add other logics after the contract is deployed
}

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