public FabCarItem ChangeCarOwner(string key, string newOwerner)
{
// changeCarOwner chaincode function - requires 2 args , ex: args: ['CAR10', 'Dave'],
var t = client.NewQueryProposalRequest();
var request = t;
t.ChaincodeID = new Hyperledger.Fabric.SDK.ChaincodeID()
{
Name = chaincode
};
t.Fcn = "changeCarOwner";
t.Args = new System.Collections.Generic.List <string>()
{
key,
newOwerner
};
var response = channel.QueryByChaincode(t);
if (!response[0].IsInvalid)
{
var item = new FabCarItem()
{
Key = key,
Record = Newtonsoft.Json.JsonConvert.DeserializeObject <Record>(System.Text.Encoding.UTF8.GetString(response[0].ChaincodeActionResponsePayload))
};
return(item);
}
Console.WriteLine(response[0].Message);
return(null);
}
public void CreateCar(FabCarItem carItem)
{
// createCar chaincode function - requires 5 args, ex: args: ['CAR12', 'Honda', 'Accord', 'Black', 'Tom'],
var tx_id = client.NewTransactionProposalRequest();
tx_id.Args = new List <string>()
{
carItem.Key,
carItem.Record.make,
carItem.Record.model,
carItem.Record.color,
carItem.Record.owner,
};
tx_id.ChaincodeID = new Hyperledger.Fabric.SDK.ChaincodeID()
{
Name = chaincode
};
tx_id.Fcn = "createCar";
var result = channel.SendTransactionProposal(tx_id);
if (result.Count > 0)
{
// return Newtonsoft.Json.JsonConvert.DeserializeObject<FabCarCollections>(System.Text.Encoding.UTF8.GetString(result[0].ChaincodeActionResponsePayload));
Console.WriteLine(result[0].TransactionID);
var eventHub = client.NewEventHub("event1", $"grpc://{Program.ServerIP}:7053");
channel.AddEventHub(eventHub);
eventHub.ConnectAsync(result[0].TransactionContext).Wait();
var result2 = channel.SendTransaction(result);
while (true)
{
Console.Write($"\r{eventHub.Status}");
break;
}
}
//return null;
}
