Simple Neo Supply Chain Smart Contract Example

supplychain.cs

using Neo.SmartContract.Framework;
using Neo.SmartContract.Framework.Services.Neo;
using Neo.SmartContract.Framework.Services.System;

// simple supply chain tracking contract example

namespace Neo.SmartContract
{
    public struct TrackedItem
    {
        public byte[] ID;
        public string Payload;
        public uint Timestamp;
    }

    public class Tracker : Framework.SmartContract
    {
        private static readonly byte[] Owner = "AK2nJJpJr6o664CWJKi1QRXjqeic2zRp8y".ToScriptHash();

        public static object Main(string operation, object[] args)
        {

            if (operation == "putdata")
            {
                if (Runtime.CheckWitness(Owner))
                {
                    Transaction tx = ExecutionEngine.ScriptContainer as Transaction;
                    string payload = args[0] as string;
                    uint timestamp = Runtime.Time;

                    TrackedItem item = new TrackedItem
                    {
                        ID = tx.Hash,
                        Payload = payload,
                        Timestamp = timestamp
                    };
                    Storage.Put(tx.Hash, item.Serialize());

                    return true;
                }
                return false;
            }
            if (operation == "getpayload")
            {
                byte[] id = args[0] as byte[];
                TrackedItem item = (TrackedItem)Framework.Helper.Deserialize(Storage.Get(id));

                return item.Payload;
            }
            if (operation == "gettimestamp")
            {
                byte[] id = args[0] as byte[];
                TrackedItem item = (TrackedItem)Framework.Helper.Deserialize(Storage.Get(id));
                return item.Timestamp;
            }
            // get the raw serialized bytearray containing all item properties
            if (operation == "getserializeddata")
            {
                byte[] id = args[0] as byte[];
                return Storage.Get(id);
            }
            return false;
        }
    }
}

Compiles OK with VS and Neocompiler, fails to compile on NeoRay with the error

编译失败,失败提示:没有生成对应的avm文件编译失败,失败提示:没有生成对应的avm文件