def test_cold_storage(self):
if TRAVIS and sys.version_info[:2] != (3, 6):
return
private_key = PrivateKeyTestnet(WALLET_FORMAT_TEST)
address = private_key.address
prepared = PrivateKeyTestnet.prepare_transaction(
address, [('n2eMqTT929pb1RDNuqEnxdaLau1rxy3efi', 1, 'jpy')])
tx_hex = private_key.sign_transaction(prepared)
initial = len(private_key.get_transactions())
current = initial
tries = 0
NetworkAPI.broadcast_tx_testnet(tx_hex)
while tries < 15: # pragma: no cover
current = len(private_key.get_transactions())
if current > initial:
break
time.sleep(5)
tries += 1
assert current > initial
def send(self,
outputs,
fee=None,
leftover=None,
combine=True,
message=None,
unspents=None,
token=None): # pragma: no cover
"""Creates a signed P2PKH transaction and attempts to broadcast it on
the blockchain. This accepts the same arguments as
:func:`~lit.PrivateKey.create_transaction`.
:param outputs: A sequence of outputs you wish to send in the form
``(destination, amount, currency)``. The amount can
be either an int, float, or string as long as it is
a valid input to ``decimal.Decimal``. The currency
must be :ref:`supported <supported currencies>`.
:type outputs: ``list`` of ``tuple``
:param fee: The number of satoshi per byte to pay to miners. By default
Bit will poll `<https://bitcoinfees.earn.com>`_ and use a fee
that will allow your transaction to be confirmed as soon as
possible.
:type fee: ``int``
:param leftover: The destination that will receive any change from the
transaction. By default Bit will send any change to
the same address you sent from.
:type leftover: ``str``
:param combine: Whether or not Bit should use all available UTXOs to
make future transactions smaller and therefore reduce
fees. By default Bit will consolidate UTXOs.
:type combine: ``bool``
:param message: A message to include in the transaction. This will be
stored in the blockchain forever. Due to size limits,
each message will be stored in chunks of 40 bytes.
:type message: ``str``
:param unspents: The UTXOs to use as the inputs. By default Bit will
communicate with the blockchain itself.
:type unspents: ``list`` of :class:`~lit.network.meta.Unspent`
:returns: The transaction ID.
:rtype: ``str``
"""
tx_hex = self.create_transaction(outputs,
fee=fee,
leftover=leftover,
combine=combine,
message=message,
unspents=unspents)
NetworkAPI.broadcast_tx(tx_hex, token)
return calc_txid(tx_hex)
def get_transactions(self, token=None):
"""Fetches transaction history.
:rtype: ``list`` of ``str`` transaction IDs
"""
self.transactions[:] = NetworkAPI.get_transactions(self.address, token)
return self.transactions
def get_unspents(self, token=None):
"""Fetches all available unspent transaction outputs.
:rtype: ``list`` of :class:`~lit.network.meta.Unspent`
"""
self.unspents[:] = NetworkAPI.get_unspent(self.address, token)
return self.unspents
def get_transactions(self):
"""Fetches transaction history.
:rtype: ``list`` of ``str`` transaction IDs
"""
self.transactions[:] = NetworkAPI.get_transactions_testnet(self.address)
return self.transactions
def get_transactions(address, token):
transactions = []
"""Fetches transaction history.
:rtype: ``list`` of ``str`` transaction IDs
"""
transactions[:] = NetworkAPI.get_transactions(address, token)
return transactions
def get_unspents(self):
"""Fetches all available unspent transaction outputs.
:rtype: ``list`` of :class:`~lit.network.meta.Unspent`
"""
self.unspents[:] = NetworkAPI.get_unspent_testnet(self.address)
self.balance = sum(unspent.amount for unspent in self.unspents)
return self.unspents
def prepare_transaction(cls, address, outputs, compressed=True, fee=None, leftover=None,
combine=True, message=None, unspents=None):
"""Prepares a P2PKH transaction for offline signing.
:param address: The address the funds will be sent from.
:type address: ``str``
:param outputs: A sequence of outputs you wish to send in the form
``(destination, amount, currency)``. The amount can
be either an int, float, or string as long as it is
a valid input to ``decimal.Decimal``. The currency
must be :ref:`supported <supported currencies>`.
:type outputs: ``list`` of ``tuple``
:param compressed: Whether or not the ``address`` corresponds to a
compressed public key. This influences the fee.
:type compressed: ``bool``
:param fee: The number of satoshi per byte to pay to miners. By default
Lit will poll `<https://bitcoinfees.earn.com>`_ and use a fee
that will allow your transaction to be confirmed as soon as
possible.
:type fee: ``int``
:param leftover: The destination that will receive any change from the
transaction. By default Bit will send any change to
the same address you sent from.
:type leftover: ``str``
:param combine: Whether or not Bit should use all available UTXOs to
make future transactions smaller and therefore reduce
fees. By default Bit will consolidate UTXOs.
:type combine: ``bool``
:param message: A message to include in the transaction. This will be
stored in the blockchain forever. Due to size limits,
each message will be stored in chunks of 40 bytes.
:type message: ``str``
:param unspents: The UTXOs to use as the inputs. By default Lit will
communicate with the blockchain itself.
:type unspents: ``list`` of :class:`~lit.network.meta.Unspent`
:returns: JSON storing data required to create an offline transaction.
:rtype: ``str``
"""
unspents, outputs = sanitize_tx_data(
unspents or NetworkAPI.get_unspent_testnet(address),
outputs,
fee or get_fee_cached(),
leftover or address,
combine=combine,
message=message,
compressed=compressed
)
data = {
'unspents': [unspent.to_dict() for unspent in unspents],
'outputs': outputs
}
return json.dumps(data, separators=(',', ':'))
def get_balance(self, currency='ltc', token=None):
"""Fetches the current balance by calling
:func:`~lit.PrivateKey.get_unspents` and returns it using
:func:`~lit.PrivateKey.balance_as`.
:param currency: One of the :ref:`supported currencies`.
:type currency: ``str``
:rtype: ``str``
"""
# self.get_unspents()
self.balance = NetworkAPI.get_balance(self.address, token)
return self.balance_as(currency)
def get_balance(address, token, currency='LTC'):
return NetworkAPI.get_balance(address, token)
def get_last_block(token):
block_number = NetworkAPI.get_last_block(token)
return block_number
def get_transaction(hash_, token):
transaction = NetworkAPI.get_transaction(hash_, token)
return transaction
def check_in_mempool(tx_id, token):
return NetworkAPI.check_in_mempool(tx_id, token)