private Transaction(KeyPair sourceAccount, long sequenceNumber, Operation[] operations, Memo memo, TimeBounds timeBounds)
{
SourceAccount = sourceAccount ?? throw new ArgumentNullException(nameof(sourceAccount), "sourceAccount cannot be null");
SequenceNumber = sequenceNumber;
Operations = operations ?? throw new ArgumentNullException(nameof(operations), "operations cannot be null");
if (operations.Length == 0)
{
throw new ArgumentNullException(nameof(operations), "At least one operation required");
}
Fee = operations.Length * BaseFee;
Signatures = new List <DecoratedSignature>();
Memo = memo ?? Memo.None();
TimeBounds = timeBounds;
}
/// <summary>
/// Generates Transaction XDR object.
/// </summary>
/// <returns></returns>
public xdr.Transaction ToXdr()
{
// fee
var fee = new Uint32 {
InnerValue = Fee
};
// sequenceNumber
var sequenceNumberUint = new Uint64 {
InnerValue = SequenceNumber
};
var sequenceNumber = new SequenceNumber {
InnerValue = sequenceNumberUint
};
// sourceAccount
var sourceAccount = new AccountID {
InnerValue = SourceAccount.XdrPublicKey
};
// operations
var operations = new xdr.Operation[Operations.Length];
for (var i = 0; i < Operations.Length; i++)
{
operations[i] = Operations[i].ToXdr();
}
// ext
var ext = new xdr.Transaction.TransactionExt {
Discriminant = 0
};
var transaction = new xdr.Transaction
{
Fee = fee,
SeqNum = sequenceNumber,
SourceAccount = sourceAccount,
Operations = operations,
Memo = Memo.ToXdr(),
TimeBounds = TimeBounds?.ToXdr(),
Ext = ext
};
return(transaction);
}
public void TestBuilderMemoText()
{
// GBPMKIRA2OQW2XZZQUCQILI5TMVZ6JNRKM423BSAISDM7ZFWQ6KWEBC4
var source = KeyPair.FromSecretSeed("SCH27VUZZ6UAKB67BDNF6FA42YMBMQCBKXWGMFD5TZ6S5ZZCZFLRXKHS");
var destination = KeyPair.FromAccountId("GDW6AUTBXTOC7FIKUO5BOO3OGLK4SF7ZPOBLMQHMZDI45J2Z6VXRB5NR");
var account = new Account(source, 2908908335136768);
var transaction = new Transaction.Builder(account)
.AddOperation(new CreateAccountOperation.Builder(destination, "2000").Build())
.AddMemo(Memo.Text("Hello world!"))
.Build();
transaction.Sign(source);
Assert.AreEqual(
"AAAAAF7FIiDToW1fOYUFBC0dmyufJbFTOa2GQESGz+S2h5ViAAAAZAAKVaMAAAABAAAAAAAAAAEAAAAMSGVsbG8gd29ybGQhAAAAAQAAAAAAAAAAAAAAAO3gUmG83C+VCqO6FztuMtXJF/l7grZA7MjRzqdZ9W8QAAAABKgXyAAAAAAAAAAAAbaHlWIAAABAxzofBhoayuUnz8t0T1UNWrTgmJ+lCh9KaeOGu2ppNOz9UGw0abGLhv+9oWQsstaHx6YjwWxL+8GBvwBUVWRlBQ==",
transaction.ToEnvelopeXdrBase64());
}
public void TestTryingToAddMemoTwice()
{
// GBPMKIRA2OQW2XZZQUCQILI5TMVZ6JNRKM423BSAISDM7ZFWQ6KWEBC4
var source = KeyPair.FromSecretSeed("SCH27VUZZ6UAKB67BDNF6FA42YMBMQCBKXWGMFD5TZ6S5ZZCZFLRXKHS");
var destination = KeyPair.FromAccountId("GDW6AUTBXTOC7FIKUO5BOO3OGLK4SF7ZPOBLMQHMZDI45J2Z6VXRB5NR");
try
{
var account = new Account(source, 2908908335136768L);
new Transaction.Builder(account)
.AddOperation(new CreateAccountOperation.Builder(destination, "2000").Build())
.AddMemo(Memo.None())
.AddMemo(Memo.None());
Assert.Fail();
}
catch (Exception exception)
{
Assert.IsTrue(exception.Message.Contains("Memo has been already added."));
}
}