Awesome

aepp-sdk-net

.NET SDK to interact with the æternity blockchain

NuGet Package

    PM> Install-Package aepp-sdk-net

Loosely based on the following sdks:

Supports

AEternity >= v5.0.0 & Sophia >= v4.0.0

All the code is async. But Sync extension methods exists for easy use.
Net Standard 2.0. Supports .NET Core 3.0
You can use the FlatClient for porting (it maps all the Node/Compiler functions), or the normal client which is fluent and easy to use.
OracleService and AsyncOracleService provides a background service capable of running an oracle.
Clients Configuration constructor can use IConfiguration and ILogger for dependency injection on ASP NET projects.
OracleService/AsyncOracleService are based on BackgroundService, which can also be used on ASP NET projects as a singleton in the startup.
You can subclass the Configuration Class and override GetHttpClient so you can provide a custom HttpClient Factory if needed.
The Fluent Client serialize/de-serialize inputs and outputs into .net objects, so you don't have to worry about serializing or de-serializing stuff from contracts or oracles.
Several other features, like automanaging of the nonce, Easy checking or waiting for transaction finish, combination functions like MeasureAndCall (Dry & Call), etc.

Notice

If you want to use the KeyStore part in mobile apps (Xamarin) there is a compiled version of libsodium in

Xamarin-NativeLibrariesForLibSodium

Add it as native library to your Droid/iOS project.

Examples

Transfer

Configuration cfg = new Configuration(); // You can inject here IConfiguration and ILogger classes.
cfg.NativeMode = true;
cfg.Network = Constants.Network.DEVNET;
Client client = new Client(cf);
Account from = client.ConstructAccount(new BaseKeyPair("79816BBF860B95600DDFABF9D81FEE81BDB30BE823B17D80B9E48BE0A7015ADF"));
BaseKeyPair tokp = BaseKeyPair.Generate();
Account to = client.ConstructAccount(kp);
ulong transfer = (ulong)1m.ToAettos(Unit.AE);
account.SendAmount(to.KeyPair.PublicKey, transfer).WaitForFinish(TimeSpan.FromSeconds(30));
to.Refresh();
Assert.AreEqual(to.Balance,transfer);

Name Service

Configuration cfg = new Configuration(); // You can inject here IConfiguration and ILogger classes.
cfg.NativeMode = true;
cfg.Network = Constants.Network.DEVNET;
Client client = new Client(cf);
Random random = new Random();
string domain = "aeternity" + random.Next() + ".test";
Account account = client.ConstructAccount(new BaseKeyPair("79816BBF860B95600DDFABF9D81FEE81BDB30BE823B17D80B9E48BE0A7015ADF"));
PreClaim preclaim = account.PreClaimDomain(domain).WaitForFinish(TimeSpan.FromSeconds(30));
Claim claim = preclaim.ClaimDomain().WaitForFinish(TimeSpan.FromSeconds(30));
claim = claim.Update(10000, 50).WaitForFinish(TimeSpan.FromSeconds(30));
claim.Revoke().WaitForFinish(TimeSpan.FromSeconds(30));

Contracts

Configuration cfg = new Configuration(); // You can inject here IConfiguration and ILogger classes.
cfg.NativeMode = true;
cfg.Network = Constants.Network.DEVNET;
Client client = new Client(cf);
Account account = client.ConstructAccount(new BaseKeyPair("79816BBF860B95600DDFABF9D81FEE81BDB30BE823B17D80B9E48BE0A7015ADF"));
Contract contract = account.ConstructContract(IdentityContractSourceCode); //string containing the contract source
contract.Deploy(0, 0, 2000000000, 100000).WaitForFinish(TimeSpan.FromSeconds(30));
ContractReturn<int> re = contract.StaticCall<int>("main", 0, 42);
Assert.AreEqual(re.ReturnValue, 42);

Configuration cfg = new Configuration(); // You can inject here IConfiguration and ILogger classes.
cfg.NativeMode = true;
cfg.Network = Constants.Network.DEVNET;
Client client = new Client(cf);
Account account = client.ConstructAccount(new BaseKeyPair("79816BBF860B95600DDFABF9D81FEE81BDB30BE823B17D80B9E48BE0A7015ADF"));
BaseKeyPair rec1 = BaseKeyPair.Generate();
BaseKeyPair rec2 = BaseKeyPair.Generate();
BaseKeyPair rec3 = BaseKeyPair.Generate();
//map(address, int)
Dictionary<string, int> input = new Dictionary<string, int>();
input.Add(rec1.PublicKey, 40);
input.Add(rec2.PublicKey, 40);
input.Add(rec3.PublicKey, 20);
ulong paymentValue = (ulong)1m.ToAettos(Unit.AE);
Contract contract = account.ConstructContract(paymentSplitterSource); //string containing the contract source
contract.MeasureAndDeploy(0, 0, Constants.BaseConstants.MINIMAL_GAS_PRICE, "init", input).WaitForFinish(TimeSpan.FromSeconds(30));
contract.MeasureAndCall("payAndSplit", Constants.BaseConstants.MINIMAL_GAS_PRICE, paymentValue).WaitForFinish(TimeSpan.FromSeconds(30));

Oracles


public class CityQuery
{
    [SophiaName("city")]
    public string City { get; set; }
}

public class TemperatureResponse
{
    [SophiaName("temp_c")]
    public int TemperatureCelsius { get; set; }
}

public class CityTemperatureService : OracleService<CityQuery, TemperatureResponse>
{
    public override TemperatureResponse Answer(CityQuery ask)
    {
        if (ask.City.ToLowerInvariant() == "montevideo")
            return new TemperatureResponse {TemperatureCelsius = 24};
        if (ask.City.ToLowerInvariant() == "sofia")
            return new TemperatureResponse {TemperatureCelsius = 25};
        return new TemperatureResponse {TemperatureCelsius = 2000};
    }
}




Configuration cfg = new Configuration(); // You can inject here IConfiguration and ILogger classes.
cfg.NativeMode = true;
cfg.Network = Constants.Network.DEVNET;
Client client = new Client(cf);
Account from = client.ConstructAccount(new BaseKeyPair("79816BBF860B95600DDFABF9D81FEE81BDB30BE823B17D80B9E48BE0A7015ADF"));
BaseKeyPair kp = BaseKeyPair.Generate();
Account oracleaccount = client.ConstructAccount(kp);
ulong transfer = (ulong)1m.ToAettos(Unit.AE);
account.SendAmount(oracleaccount.KeyPair.PublicKey, transfer).WaitForFinish(TimeSpan.FromSeconds(30)); //Send some money to the oracle
oracleAccount.Refresh();

//Server part
OracleServer<CityQuery, TemperatureResponse> server = oracleAccount.RegisterOracle<CityQuery, TemperatureResponse>().WaitForFinish(TimeSpan.FromSeconds(30));
CityTemperatureService svc = new CityTemperatureService();
svc.Server = server; //Assign the query to the Service
Task.Factory.StartNew(svc.Start); //Starts the CityTemperature Service, server will run on other thread.

//Client Part
OracleClient<CityQuery, TemperatureResponse> reg = account.GetOracle<CityQuery, TemperatureResponse>(server.OracleId);
TemperatureResponse resp = reg.Ask(new CityQuery {City = "montevideo"}).WaitForFinish(TimeSpan.FromSeconds(30));
Assert.AreEqual(resp.TemperatureCelsius, 24);
resp = reg.Ask(new CityQuery {City = "sofia"}).WaitForFinish(TimeSpan.FromSeconds(30));
Assert.AreEqual(resp.TemperatureCelsius, 25);
resp = reg.Ask(new CityQuery {City = "hell"}).WaitForFinish(TimeSpan.FromSeconds(30));
Assert.AreEqual(resp.TemperatureCelsius, 2000);
svc.Stop(); //Stop the service

Integration Testing on Windows 10 and Visual Studio How-To

Install Docker For Windows https://docs.docker.com/docker-for-windows/install
Make sure port 80 is not binded in your computer (IIS, Apache, etc).
CD to the root of this project.
type: docker-compose up

TODO

State Channels are wip, not usable yet. websocket code is not started yet, will wait till LIMA becomes stable.
Better error handling.