Last modified: 2024-09-14

ContractManagement.Update Method

Update the contract.

Namespace: Neo.SmartContract.Framework.Native

Assembly: Neo.SmartContract.Framework

Syntax

public static extern void Update(ByteString nefFile, string manifest);
public static extern void Update(ByteString nefFile, string manifest, object data = null);

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 void Update()
    {
        if (!Runtime.CheckWitness(Owner)) throw new Exception("No authorization.");
        ContractManagement.Update(nef, manifest);
    }
}

Response body:

[{"type":"Any"}]

Response description:

Void type: update completed.
Other: failed.

The contract hash remains unchanged after the update.

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