Golang Transaction Examples

Golang Transaction - 30 examples found. These are the top rated real world Golang examples of github.com/skycoin/skycoin/src/coin.Transaction extracted from open source projects. You can rate examples to help us improve the quality of examples.
Example #1
0
// InjectTxn adds a coin.Transaction to the pool, or updates an existing one's timestamps
// Returns an error if txn is invalid, and whether the transaction already
// existed in the pool.
func (utp *UnconfirmedTxnPool) InjectTxn(bc *Blockchain,
	t coin.Transaction) (error, bool) {

	if err := t.Verify(); err != nil {
		return err, false
	}

	if err := VerifyTransactionFee(bc, &t); err != nil {
		return err, false
	}
	if err := bc.VerifyTransaction(t); err != nil {
		return err, false
	}

	// Update if we already have this txn
	h := t.Hash()
	ut, ok := utp.Txns[h]
	if ok {
		now := util.Now()
		ut.Received = now
		ut.Checked = now
		utp.Txns[h] = ut
		return nil, true
	}

	// Add txn to index
	unspent := bc.GetUnspent()
	utp.Txns[h] = utp.createUnconfirmedTxn(unspent, t)
	// Add predicted unspents
	utp.Unspent[h] = coin.CreateUnspents(bc.Head().Head, t)

	return nil, false
}
Example #2
0
func (fg fakeGateway) InjectTransaction(txn coin.Transaction) (coin.Transaction, error) {
	if _, v := fg.injectRawTxMap[txn.Hash().Hex()]; v {
		return txn, nil
	}

	return txn, errors.New("inject transaction failed")
}
Example #3
0
func NewReadableTransaction(t *coin.Transaction) ReadableTransaction {

	sigs := make([]string, len(t.Sigs))
	for i, _ := range t.Sigs {
		sigs[i] = t.Sigs[i].Hex()
	}

	in := make([]string, len(t.In))
	for i, _ := range t.In {
		in[i] = t.In[i].Hex()
	}
	out := make([]ReadableTransactionOutput, len(t.Out))
	for i, _ := range t.Out {
		out[i] = NewReadableTransactionOutput(&t.Out[i])
	}
	return ReadableTransaction{
		Length:    t.Length,
		Type:      t.Type,
		Hash:      t.Hash().Hex(),
		InnerHash: t.InnerHash.Hex(),

		Sigs: sigs,
		In:   in,
		Out:  out,
	}
}
Example #4
0
// Adds a coin.Transaction to the pool, or updates an existing one's timestamps
// Returns an error if txn is invalid, and whether the transaction already
// existed in the pool.
func (self *UnconfirmedTxnPool) RecordTxn(bc *coin.Blockchain,
	t coin.Transaction, addrs map[coin.Address]byte, maxSize int,
	burnFactor uint64) (error, bool) {
	if err := VerifyTransaction(bc, &t, maxSize, burnFactor); err != nil {
		return err, false
	}
	if err := bc.VerifyTransaction(t); err != nil {
		return err, false
	}

	// Update if we already have this txn
	ut, ok := self.Txns[t.Hash()]
	if ok {
		now := util.Now()
		ut.Received = now
		ut.Checked = now
		self.Txns[ut.Txn.Hash()] = ut
		return nil, true
	}

	// Add txn to index
	self.Txns[t.Hash()] = self.createUnconfirmedTxn(&bc.Unspent, t, addrs)
	// Add predicted unspents
	uxs := coin.CreateExpectedUnspents(t)
	for i, _ := range uxs {
		self.Unspent.Add(uxs[i])
	}

	return nil, false
}
Example #5
0
func InitTransaction() coin.Transaction {
	var tx coin.Transaction

	output := cipher.MustSHA256FromHex("043836eb6f29aaeb8b9bfce847e07c159c72b25ae17d291f32125e7f1912e2a0")
	tx.PushInput(output)

	for i := 0; i < 100; i++ {
		addr := cipher.MustDecodeBase58Address(AddrList[i])
		tx.PushOutput(addr, 1e12, 1) // 10e6*10e6
	}
	/*
		seckeys := make([]cipher.SecKey, 1)
		seckey := ""
		seckeys[0] = cipher.MustSecKeyFromHex(seckey)
		tx.SignInputs(seckeys)
	*/

	txs := make([]cipher.Sig, 1)
	sig := "ed9bd7a31fe30b9e2d53b35154233dfdf48aaaceb694a07142f84cdf4f5263d21b723f631817ae1c1f735bea13f0ff2a816e24a53ccb92afae685fdfc06724de01"
	txs[0] = cipher.MustSigFromHex(sig)
	tx.Sigs = txs

	tx.UpdateHeader()

	err := tx.Verify()

	if err != nil {
		log.Panic(err)
	}

	log.Printf("signature= %s", tx.Sigs[0].Hex())
	return tx
}
Example #6
0
// Adds a coin.Transaction to the pool, or updates an existing one's timestamps
// Returns an error if txn is invalid, and whether the transaction already
// existed in the pool.
func (self *UnconfirmedTxnPool) RecordTxn(bc *coin.Blockchain,
	t coin.Transaction, addrs map[cipher.Address]byte, maxSize int,
	burnFactor uint64) (error, bool) {
	if err := VerifyTransaction(bc, &t, maxSize, burnFactor); err != nil {
		return err, false
	}
	if err := bc.VerifyTransaction(t); err != nil {
		return err, false
	}

	// Update if we already have this txn
	h := t.Hash()
	ut, ok := self.Txns[h]
	if ok {
		now := util.Now()
		ut.Received = now
		ut.Checked = now
		self.Txns[h] = ut
		return nil, true
	}

	// Add txn to index
	self.Txns[h] = self.createUnconfirmedTxn(&bc.Unspent, t, addrs)
	// Add predicted unspents
	self.Unspent[h] = coin.CreateUnspents(bc.Head().Head, t)

	return nil, false
}