def decode_transaction_raw(transaction_raw):
"""
Decode Bitcoin transaction raw.
:param transaction_raw: Bitcoin transaction raw.
:type transaction_raw: str
:returns: dict -- decoded Bitcoin transaction.
>>> from swap.providers.bitcoin.utils import decode_transaction_raw
>>> transaction_raw = "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"
>>> decode_transaction_raw(transaction_raw)
{'fee': 678, 'type': 'bitcoin_fund_unsigned', 'tx': {'hex': '0200000001888be7ec065097d95664763f276d425552d735fb1d974ae78bf72106dca0f3910100000000ffffffff02102700000000000017a9142bb013c3e4beb08421dedcf815cb65a5c388178b87bcdd0e00000000001976a91464a8390b0b1685fcbf2d4b457118dc8da92d553488ac00000000', 'txid': 'abc70fd3466aec9478ea3115200a84f993204ad1f614fe08e92ecc5997a0d3ba', 'hash': 'abc70fd3466aec9478ea3115200a84f993204ad1f614fe08e92ecc5997a0d3ba', 'size': 117, 'vsize': 117, 'version': 2, 'locktime': 0, 'vin': [{'txid': '91f3a0dc0621f78be74a971dfb35d75255426d273f766456d9975006ece78b88', 'vout': 1, 'scriptSig': {'asm': '', 'hex': ''}, 'sequence': '4294967295'}], 'vout': [{'value': '0.00010000', 'n': 0, 'scriptPubKey': {'asm': 'OP_HASH160 2bb013c3e4beb08421dedcf815cb65a5c388178b OP_EQUAL', 'hex': 'a9142bb013c3e4beb08421dedcf815cb65a5c388178b87', 'type': 'p2sh', 'address': '2MwEDybGC34949zgzWX4M9FHmE3crDSUydP'}}, {'value': '0.00974268', 'n': 1, 'scriptPubKey': {'asm': 'OP_DUP OP_HASH160 64a8390b0b1685fcbf2d4b457118dc8da92d5534 OP_EQUALVERIFY OP_CHECKSIG', 'hex': '76a91464a8390b0b1685fcbf2d4b457118dc8da92d553488ac', 'type': 'p2pkh', 'address': 'mphBPZf15cRFcL5tUq6mCbE84XobZ1vg7Q'}}]}, 'network': 'testnet'}
"""
transaction_raw = str(transaction_raw + "=" * (-len(transaction_raw) % 4))
try:
decoded_transaction_raw = json.loads(
b64decode(str(transaction_raw).encode()).decode())
except (binascii.Error, json.decoder.JSONDecodeError) as _error:
raise ValueError("invalid Bitcoin transaction raw")
if "type" not in decoded_transaction_raw or not str(
decoded_transaction_raw["type"]).startswith("bitcoin"):
raise ValueError("invalid Bitcoin transaction raw")
# Setting testnet
stp(decoded_transaction_raw["network"], strict=True)
tx = MutableTransaction.unhexlify(decoded_transaction_raw["raw"])
return dict(fee=decoded_transaction_raw["fee"],
type=decoded_transaction_raw["type"],
tx=tx.to_json(),
network=decoded_transaction_raw["network"])
def decode_transaction_raw(transaction_raw):
"""
Decode Bitcoin transaction raw.
:param transaction_raw: Bitcoin transaction raw.
:type transaction_raw: str
:returns: dict -- decoded Bitcoin transaction.
>>> from shuttle.providers.bitcoin.utils import decode_transaction_raw
>>> decode_transaction_raw(transaction_raw)
{...}
"""
transaction_raw = str(transaction_raw + "=" * (-len(transaction_raw) % 4))
try:
decoded_transaction_raw = json.loads(b64decode(str(transaction_raw).encode()).decode())
except (binascii.Error, json.decoder.JSONDecodeError) as _error:
raise ValueError("invalid Bitcoin transaction raw")
if "type" not in decoded_transaction_raw or not str(decoded_transaction_raw["type"]).startswith("bitcoin"):
raise ValueError("invalid Bitcoin transaction raw")
# Setting testnet
stp(decoded_transaction_raw["network"], strict=True)
tx = MutableTransaction.unhexlify(decoded_transaction_raw["raw"])
return dict(
fee=decoded_transaction_raw["fee"],
type=decoded_transaction_raw["type"],
tx=tx.to_json(),
network=decoded_transaction_raw["network"]
)
def decode_transaction_raw(transaction_raw: str,
offline: bool = True,
headers: dict = config["headers"],
timeout: int = config["timeout"]) -> dict:
"""
Decode Bitcoin transaction raw.
:param transaction_raw: Bitcoin transaction raw.
:type transaction_raw: str
:param offline: Offline decode, defaults to True.
:type offline: bool
:param headers: Request headers, default to common headers.
:type headers: dict
:param timeout: Request timeout, default to 60.
:type timeout: int
:returns: dict -- Decoded Bitcoin transaction raw.
>>> from swap.providers.bitcoin.utils import decode_transaction_raw
>>> transaction_raw = "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"
>>> decode_transaction_raw(transaction_raw=transaction_raw)
{'fee': 678, 'type': 'bitcoin_fund_unsigned', 'tx': {'hex': '0200000001888be7ec065097d95664763f276d425552d735fb1d974ae78bf72106dca0f3910100000000ffffffff02102700000000000017a9142bb013c3e4beb08421dedcf815cb65a5c388178b87bcdd0e00000000001976a91464a8390b0b1685fcbf2d4b457118dc8da92d553488ac00000000', 'txid': 'abc70fd3466aec9478ea3115200a84f993204ad1f614fe08e92ecc5997a0d3ba', 'hash': 'abc70fd3466aec9478ea3115200a84f993204ad1f614fe08e92ecc5997a0d3ba', 'size': 117, 'vsize': 117, 'version': 2, 'locktime': 0, 'vin': [{'txid': '91f3a0dc0621f78be74a971dfb35d75255426d273f766456d9975006ece78b88', 'vout': 1, 'scriptSig': {'asm': '', 'hex': ''}, 'sequence': '4294967295'}], 'vout': [{'value': '0.00010000', 'n': 0, 'scriptPubKey': {'asm': 'OP_HASH160 2bb013c3e4beb08421dedcf815cb65a5c388178b OP_EQUAL', 'hex': 'a9142bb013c3e4beb08421dedcf815cb65a5c388178b87', 'type': 'p2sh', 'address': '2MwEDybGC34949zgzWX4M9FHmE3crDSUydP'}}, {'value': '0.00974268', 'n': 1, 'scriptPubKey': {'asm': 'OP_DUP OP_HASH160 64a8390b0b1685fcbf2d4b457118dc8da92d5534 OP_EQUALVERIFY OP_CHECKSIG', 'hex': '76a91464a8390b0b1685fcbf2d4b457118dc8da92d553488ac', 'type': 'p2pkh', 'address': 'mphBPZf15cRFcL5tUq6mCbE84XobZ1vg7Q'}}]}, 'network': 'testnet'}
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
decoded_transaction: Optional[dict] = None
if offline:
stp(loaded_transaction_raw["network"], strict=True, force=True)
tx = MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
decoded_transaction = tx.to_json()
else:
url = f"{config[loaded_transaction_raw['network']]['blockcypher']['url']}/txs/decode"
parameter = dict(token=config[loaded_transaction_raw["network"]]
["blockcypher"]["token"])
data = dict(tx=loaded_transaction_raw["raw"])
response = requests.post(url=url,
data=json.dumps(data),
params=parameter,
headers=headers,
timeout=timeout)
decoded_transaction = response.json()
return dict(fee=loaded_transaction_raw["fee"],
type=loaded_transaction_raw["type"],
tx=decoded_transaction,
network=loaded_transaction_raw["network"])
def sign(self, unsigned_raw, solver):
"""
Sign unsigned refund transaction raw.
:param unsigned_raw: bitcoin unsigned refund transaction raw.
:type unsigned_raw: str
:param solver: bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundSignature -- bitcoin refund signature instance.
>>> from shuttle.providers.bitcoin.signature import RefundSignature
>>> refund_signature = RefundSignature()
>>> refund_signature.sign(bitcoin_refund_unsigned, refund_solver)
<shuttle.providers.bitcoin.signature.RefundSignature object at 0x0409DAF0>
"""
tx_raw = json.loads(b64decode(str(unsigned_raw).encode()).decode())
if "raw" not in tx_raw or "outputs" not in tx_raw or "type" not in tx_raw or \
"recipient_address" not in tx_raw or "sender_address" not in tx_raw or "fee" not in tx_raw:
raise ValueError("invalid unsigned refund transaction raw")
self.fee = tx_raw["fee"]
self.type = tx_raw["type"]
if not self.type == "bitcoin_refund_unsigned":
raise TypeError("can't sign this %s transaction using RefundSignature" % tx_raw["type"])
if not isinstance(solver, RefundSolver):
raise Exception("invalid solver error, only refund solver")
htlc = HTLC(network=self.network).init(
secret_hash=sha256(solver.secret).hex(),
recipient_address=tx_raw["recipient_address"],
sender_address=tx_raw["sender_address"],
sequence=solver.sequence
)
output = TxOut(value=tx_raw["outputs"][0]["amount"], n=tx_raw["outputs"][0]["n"],
script_pubkey=P2shScript.unhexlify(tx_raw["outputs"][0]["script"]))
self.transaction = MutableTransaction.unhexlify(tx_raw["raw"])
self.transaction.spend([output], [
P2shSolver(htlc.script, solver.solve())
])
self.signed = b64encode(str(json.dumps(dict(
raw=self.transaction.hexlify(),
fee=tx_raw["fee"],
network=tx_raw["network"],
type="bitcoin_refund_signed"
))).encode()).decode()
return self
def decode_raw(raw: str, network: str = config["network"], offline: bool = True,
headers: dict = config["headers"], timeout: int = config["timeout"]) -> dict:
"""
Decode original Bitcoin raw.
:param raw: Bitcoin transaction raw.
:type raw: str
:param network: Bitcoin network, defaults to mainnet.
:type network: str
:param offline: Offline decode, defaults to True.
:type offline: bool
:param headers: Request headers, default to common headers.
:type headers: dict
:param timeout: Request timeout, default to 60.
:type timeout: int
:returns: dict -- Bitcoin decoded transaction raw.
>>> from swap.providers.bitcoin.rpc import decode_raw
>>> decode_raw(raw="02000000011823f39a8c5f6f27845dd13a65e03fe2ef5108d235e7a36edb6eb267b0459c5a010000006a47304402207018b7fd1ba6624fe9bb0f16cd65fa243d202e32fdff452699f56465b61ab648022009f0dc1a0a63109246c45e120fc0d34b40e789dfc4d05e64f269602c7d67d9210121027f0dc0894bd690635412af782d05e4f79d3d40bf568978c650f3f1ca1a96cf36ffffffff02102700000000000017a9149418feed4647e156d6663db3e0cef7c050d038678734330100000000001976a91433ecab3d67f0e2bde43e52f41ec1ecbdc73f11f888ac00000000", network="testnet")
{'hex': '02000000011823f39a8c5f6f27845dd13a65e03fe2ef5108d235e7a36edb6eb267b0459c5a010000006a47304402207018b7fd1ba6624fe9bb0f16cd65fa243d202e32fdff452699f56465b61ab648022009f0dc1a0a63109246c45e120fc0d34b40e789dfc4d05e64f269602c7d67d9210121027f0dc0894bd690635412af782d05e4f79d3d40bf568978c650f3f1ca1a96cf36ffffffff02102700000000000017a9149418feed4647e156d6663db3e0cef7c050d038678734330100000000001976a91433ecab3d67f0e2bde43e52f41ec1ecbdc73f11f888ac00000000', 'txid': '6e5c80f600f45acda3c3101128bb3075bf2cf7af4bab0d99c9d856ebfb4b0953', 'hash': '6e5c80f600f45acda3c3101128bb3075bf2cf7af4bab0d99c9d856ebfb4b0953', 'size': 223, 'vsize': 223, 'version': 2, 'locktime': 0, 'vin': [{'txid': '5a9c45b067b26edb6ea3e735d20851efe23fe0653ad15d84276f5f8c9af32318', 'vout': 1, 'scriptSig': {'asm': '304402207018b7fd1ba6624fe9bb0f16cd65fa243d202e32fdff452699f56465b61ab648022009f0dc1a0a63109246c45e120fc0d34b40e789dfc4d05e64f269602c7d67d92101 027f0dc0894bd690635412af782d05e4f79d3d40bf568978c650f3f1ca1a96cf36', 'hex': '47304402207018b7fd1ba6624fe9bb0f16cd65fa243d202e32fdff452699f56465b61ab648022009f0dc1a0a63109246c45e120fc0d34b40e789dfc4d05e64f269602c7d67d9210121027f0dc0894bd690635412af782d05e4f79d3d40bf568978c650f3f1ca1a96cf36'}, 'sequence': '4294967295'}], 'vout': [{'value': '0.00010000', 'n': 0, 'scriptPubKey': {'asm': 'OP_HASH160 9418feed4647e156d6663db3e0cef7c050d03867 OP_EQUAL', 'hex': 'a9149418feed4647e156d6663db3e0cef7c050d0386787', 'type': 'p2sh', 'address': '2N6kHwQy6Ph5EdKNgzGrcW2WhGHKGfmP5ae'}}, {'value': '0.00078644', 'n': 1, 'scriptPubKey': {'asm': 'OP_DUP OP_HASH160 33ecab3d67f0e2bde43e52f41ec1ecbdc73f11f8 OP_EQUALVERIFY OP_CHECKSIG', 'hex': '76a91433ecab3d67f0e2bde43e52f41ec1ecbdc73f11f888ac', 'type': 'p2pkh', 'address': 'mkFWGt4hT11XS8dJKzzRFsTrqjjAwZfQAC'}}]}
"""
if not is_network(network=network):
raise NetworkError(f"Invalid Bitcoin '{network}' network",
"choose only 'mainnet' or 'testnet' networks.")
if offline:
stp(network, strict=True, force=True)
tx = MutableTransaction.unhexlify(raw)
return tx.to_json()
url = f"{config[network]['blockcypher']['url']}/txs/decode"
parameter = dict(token=config[network]["blockcypher"]["token"])
data = dict(tx=raw)
response = requests.post(
url=url, data=json.dumps(data), params=parameter, headers=headers, timeout=timeout
)
response_json = response.json()
return response_json
def sign(self, unsigned_raw, solver):
"""
Sign unsigned fund transaction raw.
:param unsigned_raw: bitcoin unsigned fund transaction raw.
:type unsigned_raw: str
:param solver: bitcoin fund solver.
:type solver: bitcoin.solver.FundSolver
:returns: FundSignature -- bitcoin fund signature instance.
>>> from shuttle.providers.bitcoin.signature import FundSignature
>>> fund_signature = FundSignature()
>>> fund_signature.sign(bitcoin_fund_unsigned, fund_solver)
<shuttle.providers.bitcoin.signature.FundSignature object at 0x0409DAF0>
"""
tx_raw = json.loads(b64decode(str(unsigned_raw).encode()).decode())
if "raw" not in tx_raw or "outputs" not in tx_raw or "type" not in tx_raw or "fee" not in tx_raw:
raise ValueError("invalid unsigned fund transaction raw")
self.fee = tx_raw["fee"]
self.type = tx_raw["type"]
if not self.type == "bitcoin_fund_unsigned":
raise TypeError("can't sign this %s transaction using FundSignature" % tx_raw["type"])
if not isinstance(solver, FundSolver):
raise TypeError("invalid solver instance, only takes bitcoin FundSolver class")
self.transaction = MutableTransaction.unhexlify(tx_raw["raw"])
outputs = list()
for output in tx_raw["outputs"]:
outputs.append(
TxOut(value=output["amount"], n=output["n"],
script_pubkey=Script.unhexlify(output["script"])))
self.transaction.spend(outputs, [solver.solve() for _ in outputs])
self.signed = b64encode(str(json.dumps(dict(
raw=self.transaction.hexlify(),
fee=tx_raw["fee"],
network=tx_raw["network"],
type="bitcoin_fund_signed"
))).encode()).decode()
return self
def sign(self, unsigned_raw, solver):
"""
Sign unsigned refund transaction raw.
:param unsigned_raw: Bitcoin unsigned refund transaction raw.
:type unsigned_raw: str
:param solver: Bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundSignature -- Bitcoin refund signature instance.
>>> from shuttle.providers.bitcoin.signature import RefundSignature
>>> from shuttle.providers.bitcoin.solver import RefundSolver
>>> bitcoin_refund_unsigned_raw = "eyJmZWUiOiA1NzYsICJyYXciOiAiMDIwMDAwMDAwMTUyYzIzZGM2NDU2N2IxY2ZhZjRkNzc2NjBjNzFjNzUxZjkwZTliYTVjMzc0N2ZhYzFkMDA1MTgwOGVhMGQ2NTEwMDAwMDAwMDAwZmZmZmZmZmYwMTQ4MTEwMDAwMDAwMDAwMDAxOTc2YTkxNDY0YTgzOTBiMGIxNjg1ZmNiZjJkNGI0NTcxMThkYzhkYTkyZDU1MzQ4OGFjMDAwMDAwMDAiLCAib3V0cHV0cyI6IHsidmFsdWUiOiA1MDAwLCAibiI6IDAsICJzY3JpcHRfcHVia2V5IjogImE5MTQ0MzNlOGVkNTliOWE2N2YwZjE4N2M2M2ViNDUwYjBkNTZlMjU2ZWMyODcifSwgIm5ldHdvcmsiOiAidGVzdG5ldCIsICJ0eXBlIjogImJpdGNvaW5fcmVmdW5kX3Vuc2lnbmVkIn0"
>>> refund_solver = RefundSolver("92cbbc5990cb5090326a76feeb321cad01048635afe5756523bbf9f7a75bf38b", "3a26da82ead15a80533a02696656b14b5dbfd84eb14790f2e1be5e9e45820eeb", "muTnffLDR5LtFeLR2i3WsKVfdyvzfyPnVB", "mphBPZf15cRFcL5tUq6mCbE84XobZ1vg7Q", 1000)
>>> refund_signature = RefundSignature(network="testnet")
>>> refund_signature.sign(unsigned_raw=bitcoin_refund_unsigned_raw, solver=refund_solver)
<shuttle.providers.bitcoin.signature.RefundSignature object at 0x0409DAF0>
"""
# Decoding and loading refund transaction
refund_transaction = json.loads(
b64decode(
str(unsigned_raw + "=" *
(-len(unsigned_raw) % 4)).encode()).decode())
# Checking refund transaction keys
for key in ["raw", "outputs", "type", "fee", "network"]:
if key not in refund_transaction:
raise ValueError(
"invalid Bitcoin unsigned refund transaction raw")
if not refund_transaction["type"] == "bitcoin_refund_unsigned":
raise TypeError(
f"invalid Bitcoin refund unsigned transaction type, "
f"you can't sign this {refund_transaction['type']} type by using RefundSignature"
)
if not isinstance(solver, RefundSolver):
raise TypeError(
"invalid Bitcoin solver, it's only takes Bitcoin RefundSolver class"
)
# Setting transaction fee, type, network and transaction
self._fee, self._type, self.network, self.transaction = (
refund_transaction["fee"], refund_transaction["type"],
refund_transaction["network"],
MutableTransaction.unhexlify(refund_transaction["raw"]))
# Signing refund transaction
self.transaction.spend([
TxOut(
value=refund_transaction["outputs"]["value"],
n=refund_transaction["outputs"]["n"],
script_pubkey=P2shScript.unhexlify(
hex_string=refund_transaction["outputs"]["script_pubkey"]))
], [
P2shSolver(redeem_script=solver.witness(
network=refund_transaction["network"]),
redeem_script_solver=solver.solve())
])
# Encoding refund transaction raw
self._type = "bitcoin_refund_signed"
self._signed_raw = b64encode(
str(
json.dumps(
dict(raw=self.transaction.hexlify(),
fee=refund_transaction["fee"],
network=refund_transaction["network"],
type=self._type))).encode()).decode()
return self
def sign(self, unsigned_raw, solver):
"""
Sign unsigned fund transaction raw.
:param unsigned_raw: Bitcoin unsigned fund transaction raw.
:type unsigned_raw: str
:param solver: Bitcoin fund solver.
:type solver: bitcoin.solver.FundSolver
:returns: FundSignature -- Bitcoin fund signature instance.
>>> from shuttle.providers.bitcoin.signature import FundSignature
>>> from shuttle.providers.bitcoin.solver import FundSolver
>>> bitcoin_fund_unsigned_raw = "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"
>>> fund_solver = FundSolver("92cbbc5990cb5090326a76feeb321cad01048635afe5756523bbf9f7a75bf38b")
>>> fund_signature = FundSignature(network="testnet")
>>> fund_signature.sign(bitcoin_fund_unsigned_raw, fund_solver)
<shuttle.providers.bitcoin.signature.FundSignature object at 0x0409DAF0>
"""
# Decoding and loading refund transaction
fund_transaction = json.loads(
b64decode(
str(unsigned_raw + "=" *
(-len(unsigned_raw) % 4)).encode()).decode())
# Checking refund transaction keys
for key in ["raw", "outputs", "type", "fee", "network"]:
if key not in fund_transaction:
raise ValueError(
"invalid Bitcoin unsigned fund transaction raw")
if not fund_transaction["type"] == "bitcoin_fund_unsigned":
raise TypeError(
f"invalid Bitcoin fund unsigned transaction type, "
f"you can't sign this {fund_transaction['type']} type by using FundSignature"
)
if not isinstance(solver, FundSolver):
raise TypeError(
"invalid Bitcoin solver, it's only takes Bitcoin FundSolver class"
)
# Setting transaction fee, type, network and transaction
self._fee, self._type, self.network, self.transaction = (
fund_transaction["fee"], fund_transaction["type"],
fund_transaction["network"],
MutableTransaction.unhexlify(fund_transaction["raw"]))
# Organizing outputs
outputs = []
for output in fund_transaction["outputs"]:
outputs.append(
TxOut(value=output["amount"],
n=output["n"],
script_pubkey=Script.unhexlify(
hex_string=output["script"])))
# Signing fund transaction
self.transaction.spend(outputs, [solver.solve() for _ in outputs])
# Encoding fund transaction raw
self._type = "bitcoin_fund_signed"
self._signed_raw = b64encode(
str(
json.dumps(
dict(raw=self.transaction.hexlify(),
fee=fund_transaction["fee"],
network=fund_transaction["network"],
type=self._type))).encode()).decode()
return self
def sign(self, transaction_raw: str, solver: RefundSolver) -> "RefundSignature":
"""
Sign unsigned refund transaction raw.
:param transaction_raw: Bitcoin unsigned refund transaction raw.
:type transaction_raw: str
:param solver: Bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundSignature -- Bitcoin refund signature instance.
>>> from swap.providers.bitcoin.signature import Signature
>>> from swap.providers.bitcoin.solver import RefundSolver
>>> unsigned_refund_transaction_raw: str = "eyJmZWUiOiA1NzYsICJyYXciOiAiMDIwMDAwMDAwMTMxZmI3NmEwYzM4ZDU3MzgxYjMxMTBlNGY1ZWU5YjUyODFkY2YyZmJlMmZlMjU2OTI2NmI3NTEwMTFkMjExYTIwMDAwMDAwMDAwZmZmZmZmZmYwMTYwODQwMTAwMDAwMDAwMDAxOTc2YTkxNGUwMGZmMmE2NDBiN2NlMmQzMzY4NjA3MzkxNjk0ODdhNTdmODRiMTU4OGFjMDAwMDAwMDAiLCAib3V0cHV0cyI6IHsidmFsdWUiOiAxMDAwMDAsICJ0eF9vdXRwdXRfbiI6IDAsICJzY3JpcHQiOiAiYTkxNGM4Yzc3YTliNDNlZTJiZGYxYTA3YzQ4Njk5ODMzZDc2NjhiZjI2NGM4NyJ9LCAibmV0d29yayI6ICJ0ZXN0bmV0IiwgInR5cGUiOiAiYml0Y29pbl9yZWZ1bmRfdW5zaWduZWQifQ"
>>> bytecode: str = "63aa20821124b554d13f247b1e5d10b84e44fb1296f18f38bbaa1bea34a12c843e01588876a9140a0a6590e6ba4b48118d21b86812615219ece76b88ac67040ec4d660b17576a914e00ff2a640b7ce2d336860739169487a57f84b1588ac68"
>>> refund_solver: RefundSolver = RefundSolver(xprivate_key="tprv8ZgxMBicQKsPeMHMJAc6uWGYiGqi1MVM2ybmzXL2TAoDpQe85uyDpdT7mv7Nhdu5rTCBEKLZsd9KyP2LQZJzZTvgVQvENArgU8e6DoYBiXf", bytecode=bytecode, endtime=1624687630)
>>> refund_signature: RefundSignature = RefundSignature(network="testnet")
>>> refund_signature.sign(transaction_raw=unsigned_refund_transaction_raw, solver=refund_solver)
<swap.providers.bitcoin.signature.RefundSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_refund_unsigned":
raise TypeError(f"Invalid Bitcoin refund unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using refund signature.")
# Check parameter instances
if not isinstance(solver, RefundSolver):
raise TypeError(f"Solver must be Bitcoin RefundSolver, not {type(solver).__name__} type.")
# Set transaction fee, type, network and transaction
self._fee, self._type, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"],
loaded_transaction_raw["network"], MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
)
# Sign refund transaction
self._transaction.spend([TxOut(
value=loaded_transaction_raw["outputs"]["value"],
n=loaded_transaction_raw["outputs"]["tx_output_n"],
script_pubkey=P2shScript.unhexlify(
hex_string=loaded_transaction_raw["outputs"]["script"]
)
)], [P2shSolver(
redeem_script=solver.witness(
network=self._network
),
redeem_script_solver=solver.solve(
network=self._network
)
)])
# Encode refund transaction raw
self._type = "bitcoin_refund_signed"
self._signed_raw = b64encode(str(json.dumps(dict(
raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type,
))).encode()).decode()
return self
def sign(self, transaction_raw: str, solver: WithdrawSolver) -> "WithdrawSignature":
"""
Sign unsigned withdraw transaction raw.
:param transaction_raw: Bitcoin unsigned withdraw transaction raw.
:type transaction_raw: str
:param solver: Bitcoin withdraw solver.
:type solver: bitcoin.solver.WithdrawSolver
:returns: WithdrawSignature -- Bitcoin withdraw signature instance.
>>> from swap.providers.bitcoin.signature import WithdrawSignature
>>> from swap.providers.bitcoin.solver import WithdrawSolver
>>> unsigned_withdraw_transaction_raw: str = "eyJmZWUiOiA1NzYsICJyYXciOiAiMDIwMDAwMDAwMTMxZmI3NmEwYzM4ZDU3MzgxYjMxMTBlNGY1ZWU5YjUyODFkY2YyZmJlMmZlMjU2OTI2NmI3NTEwMTFkMjExYTIwMDAwMDAwMDAwZmZmZmZmZmYwMTYwODQwMTAwMDAwMDAwMDAxOTc2YTkxNDBhMGE2NTkwZTZiYTRiNDgxMThkMjFiODY4MTI2MTUyMTllY2U3NmI4OGFjMDAwMDAwMDAiLCAib3V0cHV0cyI6IHsidmFsdWUiOiAxMDAwMDAsICJ0eF9vdXRwdXRfbiI6IDAsICJzY3JpcHQiOiAiYTkxNGM4Yzc3YTliNDNlZTJiZGYxYTA3YzQ4Njk5ODMzZDc2NjhiZjI2NGM4NyJ9LCAibmV0d29yayI6ICJ0ZXN0bmV0IiwgInR5cGUiOiAiYml0Y29pbl93aXRoZHJhd191bnNpZ25lZCJ9"
>>> bytecode: str = "63aa20821124b554d13f247b1e5d10b84e44fb1296f18f38bbaa1bea34a12c843e01588876a9140a0a6590e6ba4b48118d21b86812615219ece76b88ac67040ec4d660b17576a914e00ff2a640b7ce2d336860739169487a57f84b1588ac68"
>>> withdraw_solver: WithdrawSolver = WithdrawSolver(xprivate_key="tprv8ZgxMBicQKsPf949JcuVFLXPJ5m4VKe33gVX3FYVZYVHr2dChU8K66aEQcPdHpUgACq5GQu81Z4e3QN1vxCrV4pxcUcXHoRTamXBRaPdJhW", secret_key="Hello Meheret!", bytecode=bytecode)
>>> withdraw_signature: WithdrawSignature = WithdrawSignature(network="testnet")
>>> withdraw_signature.sign(transaction_raw=unsigned_withdraw_transaction_raw, solver=withdraw_solver)
<swap.providers.bitcoin.signature.WithdrawSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_withdraw_unsigned":
raise TypeError(f"Invalid Bitcoin withdraw unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using withdraw signature.")
# Check parameter instances
if not isinstance(solver, WithdrawSolver):
raise TypeError(f"Solver must be Bitcoin WithdrawSolver, not {type(solver).__name__} type.")
# Set transaction fee, type, network and transaction
self._fee, self._type, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"],
loaded_transaction_raw["network"], MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
)
# Sign withdraw transaction
self._transaction.spend([TxOut(
value=loaded_transaction_raw["outputs"]["value"],
n=loaded_transaction_raw["outputs"]["tx_output_n"],
script_pubkey=P2shScript.unhexlify(
hex_string=loaded_transaction_raw["outputs"]["script"]
)
)], [P2shSolver(
redeem_script=solver.witness(
network=self._network
),
redeem_script_solver=solver.solve(
network=self._network
)
)])
# Encode withdraw transaction raw
self._type = "bitcoin_withdraw_signed"
self._signed_raw = b64encode(str(json.dumps(dict(
raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type,
))).encode()).decode()
return self
def sign(self, transaction_raw: str, solver: FundSolver) -> "FundSignature":
"""
Sign unsigned fund transaction raw.
:param transaction_raw: Bitcoin unsigned fund transaction raw.
:type transaction_raw: str
:param solver: Bitcoin fund solver.
:type solver: bitcoin.solver.FundSolver
:returns: FundSignature -- Bitcoin fund signature instance.
>>> from swap.providers.bitcoin.signature import FundSignature
>>> from swap.providers.bitcoin.solver import FundSolver
>>> unsigned_fund_transaction_raw: str = "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"
>>> fund_solver: FundSolver = FundSolver(xprivate_key="tprv8ZgxMBicQKsPeMHMJAc6uWGYiGqi1MVM2ybmzXL2TAoDpQe85uyDpdT7mv7Nhdu5rTCBEKLZsd9KyP2LQZJzZTvgVQvENArgU8e6DoYBiXf")
>>> fund_signature: FundSignature = FundSignature(network="testnet")
>>> fund_signature.sign(transaction_raw=unsigned_fund_transaction_raw, solver=fund_solver)
<swap.providers.bitcoin.signature.FundSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_fund_unsigned":
raise TypeError(f"Invalid Bitcoin fund unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using fund signature.")
# Check parameter instances
if not isinstance(solver, FundSolver):
raise TypeError(f"Solver must be Bitcoin FundSolver, not {type(solver).__name__} type.")
# Set transaction fee, type, network and transaction
self._fee, self._type, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"],
loaded_transaction_raw["network"], MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
)
# Organize outputs
outputs = []
for output in loaded_transaction_raw["outputs"]:
outputs.append(TxOut(
value=output["value"],
n=output["tx_output_n"],
script_pubkey=Script.unhexlify(
hex_string=output["script"]
)
))
# Sign fund transaction
self._transaction.spend(
txouts=outputs,
solvers=[solver.solve(network=self._network) for _ in outputs]
)
# Encode fund transaction raw
self._type = "bitcoin_fund_signed"
self._signed_raw = b64encode(str(json.dumps(dict(
raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type
))).encode()).decode()
return self
def sign(self, transaction_raw: str,
solver: NormalSolver) -> "NormalSignature":
"""
Sign unsigned normal transaction raw.
:param transaction_raw: Bitcoin unsigned normal transaction raw.
:type transaction_raw: str
:param solver: Bitcoin normal solver.
:type solver: bitcoin.solver.NormalSolver
:returns: NormalSignature -- Bitcoin normal signature instance.
>>> from swap.providers.bitcoin.signature import NormalSignature
>>> from swap.providers.bitcoin.solver import NormalSolver
>>> unsigned_normal_transaction_raw = "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"
>>> normal_solver: NormalSolver = NormalSolver(xprivate_key="tprv8ZgxMBicQKsPeMHMJAc6uWGYiGqi1MVM2ybmzXL2TAoDpQe85uyDpdT7mv7Nhdu5rTCBEKLZsd9KyP2LQZJzZTvgVQvENArgU8e6DoYBiXf")
>>> normal_signature: NormalSignature = NormalSignature(network="testnet")
>>> normal_signature.sign(transaction_raw=unsigned_normal_transaction_raw, solver=normal_solver)
<swap.providers.bitcoin.signature.NormalSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError(
"Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_normal_unsigned":
raise TypeError(
f"Invalid Bitcoin normal unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using normal signature."
)
# Check parameter instances
if not isinstance(solver, NormalSolver):
raise TypeError(
f"Solver must be Bitcoin NormalSolver, not {type(solver).__name__} type."
)
# Set transaction fee, type, network and transaction
self._fee, self._type, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"],
loaded_transaction_raw["network"],
MutableTransaction.unhexlify(loaded_transaction_raw["raw"]))
# Organize outputs
outputs = []
for output in loaded_transaction_raw["outputs"]:
outputs.append(
TxOut(value=output["value"],
n=output["tx_output_n"],
script_pubkey=Script.unhexlify(
hex_string=output["script"])))
# Sign normal transaction
self._transaction.spend(
txouts=outputs,
solvers=[solver.solve(network=self._network) for _ in outputs])
# Encode normal transaction raw
self._type = "bitcoin_normal_signed"
self._signed_raw = b64encode(
str(
json.dumps(
dict(raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type))).encode()).decode()
return self
def sign(self, transaction_raw: str, solver: RefundSolver) -> "RefundSignature":
"""
Sign unsigned refund transaction raw.
:param transaction_raw: Bitcoin unsigned refund transaction raw.
:type transaction_raw: str
:param solver: Bitcoin refund solver.
:type solver: bitcoin.solver.RefundSolver
:returns: RefundSignature -- Bitcoin refund signature instance.
>>> from swap.providers.bitcoin.signature import RefundSignature
>>> from swap.providers.bitcoin.solver import RefundSolver
>>> unsigned_refund_transaction_raw = "eyJmZWUiOiA1NzYsICJyYXciOiAiMDIwMDAwMDAwMTE4MjNmMzlhOGM1ZjZmMjc4NDVkZDEzYTY1ZTAzZmUyZWY1MTA4ZDIzNWU3YTM2ZWRiNmViMjY3YjA0NTljNWEwMDAwMDAwMDAwZmZmZmZmZmYwMWQwMjQwMDAwMDAwMDAwMDAxOTc2YTkxNDMzZWNhYjNkNjdmMGUyYmRlNDNlNTJmNDFlYzFlY2JkYzczZjExZjg4OGFjMDAwMDAwMDAiLCAib3V0cHV0cyI6IHsidmFsdWUiOiAxMDAwMCwgInR4X291dHB1dF9uIjogMCwgInNjcmlwdCI6ICJhOTE0OTQxOGZlZWQ0NjQ3ZTE1NmQ2NjYzZGIzZTBjZWY3YzA1MGQwMzg2Nzg3In0sICJuZXR3b3JrIjogInRlc3RuZXQiLCAidHlwZSI6ICJiaXRjb2luX3JlZnVuZF91bnNpZ25lZCJ9"
>>> sender_root_xprivate_key = "xprv9s21ZrQH143K3XihXQBN8Uar2WBtrjSzK2oRDEGQ25pA2kKAADoQXaiiVXht163ZTrdtTXfM4GqNRE9gWQHky25BpvBQuuhNCM3SKwWTPNJ"
>>> bytecode = "63aa20821124b554d13f247b1e5d10b84e44fb1296f18f38bbaa1bea34a12c843e01588876a9140e259e08f2ec9fc99a92b6f66fdfcb3c7914fd6888ac6702e803b27576a91433ecab3d67f0e2bde43e52f41ec1ecbdc73f11f888ac68"
>>> refund_solver = RefundSolver(sender_root_xprivate_key, bytecode, 1000)
>>> refund_signature = RefundSignature("testnet")
>>> refund_signature.sign(transaction_raw=unsigned_refund_transaction_raw, solver=refund_solver)
<swap.providers.bitcoin.signature.RefundSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_refund_unsigned":
raise TypeError(f"Invalid Bitcoin refund unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using refund signature.")
# Check parameter instances
if not isinstance(solver, RefundSolver):
raise TypeError(f"Solver must be Bitcoin RefundSolver, not {type(solver).__name__} type.")
# Set transaction fee, type, network and transaction
self._fee, self._type, self._datas, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"], loaded_transaction_raw["datas"],
loaded_transaction_raw["network"], MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
)
# Sign refund transaction
self._transaction.spend([TxOut(
value=loaded_transaction_raw["outputs"]["value"],
n=loaded_transaction_raw["outputs"]["tx_output_n"],
script_pubkey=P2shScript.unhexlify(
hex_string=loaded_transaction_raw["outputs"]["script"]
)
)], [P2shSolver(
redeem_script=solver.witness(
network=self._network
),
redeem_script_solver=solver.solve(
network=self._network
)
)])
# Encode refund transaction raw
self._type = "bitcoin_refund_signed"
self._signed_raw = b64encode(str(json.dumps(dict(
raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type,
datas=self._datas
))).encode()).decode()
return self
def sign(self, transaction_raw: str, solver: ClaimSolver) -> "ClaimSignature":
"""
Sign unsigned claim transaction raw.
:param transaction_raw: Bitcoin unsigned claim transaction raw.
:type transaction_raw: str
:param solver: Bitcoin claim solver.
:type solver: bitcoin.solver.ClaimSolver
:returns: ClaimSignature -- Bitcoin claim signature instance.
>>> from swap.providers.bitcoin.signature import ClaimSignature
>>> from swap.providers.bitcoin.solver import ClaimSolver
>>> unsigned_claim_transaction_raw = "eyJmZWUiOiA1NzYsICJyYXciOiAiMDIwMDAwMDAwMTE4MjNmMzlhOGM1ZjZmMjc4NDVkZDEzYTY1ZTAzZmUyZWY1MTA4ZDIzNWU3YTM2ZWRiNmViMjY3YjA0NTljNWEwMDAwMDAwMDAwZmZmZmZmZmYwMWQwMjQwMDAwMDAwMDAwMDAxOTc2YTkxNDBlMjU5ZTA4ZjJlYzlmYzk5YTkyYjZmNjZmZGZjYjNjNzkxNGZkNjg4OGFjMDAwMDAwMDAiLCAib3V0cHV0cyI6IHsidmFsdWUiOiAxMDAwMCwgInR4X291dHB1dF9uIjogMCwgInNjcmlwdCI6ICJhOTE0OTQxOGZlZWQ0NjQ3ZTE1NmQ2NjYzZGIzZTBjZWY3YzA1MGQwMzg2Nzg3In0sICJuZXR3b3JrIjogInRlc3RuZXQiLCAidHlwZSI6ICJiaXRjb2luX2NsYWltX3Vuc2lnbmVkIn0"
>>> recipient_root_xprivate_key = "xprv9s21ZrQH143K4Kpce43z5guPyxLrFoc2i8aQAq835Zzp4Rt7i6nZaMCnVSDyHT6MnmJJGKHMrCUqaYpGojrug1ZN5qQDdShQffmkyv5xyUR"
>>> bytecode = "63aa20821124b554d13f247b1e5d10b84e44fb1296f18f38bbaa1bea34a12c843e01588876a9140e259e08f2ec9fc99a92b6f66fdfcb3c7914fd6888ac6702e803b27576a91433ecab3d67f0e2bde43e52f41ec1ecbdc73f11f888ac68"
>>> claim_solver = ClaimSolver(recipient_root_xprivate_key, "Hello Meheret!", bytecode)
>>> claim_signature = ClaimSignature("testnet")
>>> claim_signature.sign(transaction_raw=unsigned_claim_transaction_raw, solver=claim_solver)
<swap.providers.bitcoin.signature.ClaimSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_claim_unsigned":
raise TypeError(f"Invalid Bitcoin claim unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using claim signature.")
# Check parameter instances
if not isinstance(solver, ClaimSolver):
raise TypeError(f"Solver must be Bitcoin ClaimSolver, not {type(solver).__name__} type.")
# Set transaction fee, type, network and transaction
self._fee, self._type, self._datas, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"], loaded_transaction_raw["datas"],
loaded_transaction_raw["network"], MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
)
# Sign claim transaction
self._transaction.spend([TxOut(
value=loaded_transaction_raw["outputs"]["value"],
n=loaded_transaction_raw["outputs"]["tx_output_n"],
script_pubkey=P2shScript.unhexlify(
hex_string=loaded_transaction_raw["outputs"]["script"]
)
)], [P2shSolver(
redeem_script=solver.witness(
network=self._network
),
redeem_script_solver=solver.solve(
network=self._network
)
)])
# Encode claim transaction raw
self._type = "bitcoin_claim_signed"
self._signed_raw = b64encode(str(json.dumps(dict(
raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type,
datas=self._datas
))).encode()).decode()
return self
def sign(self, transaction_raw: str, solver: FundSolver) -> "FundSignature":
"""
Sign unsigned fund transaction raw.
:param transaction_raw: Bitcoin unsigned fund transaction raw.
:type transaction_raw: str
:param solver: Bitcoin fund solver.
:type solver: bitcoin.solver.FundSolver
:returns: FundSignature -- Bitcoin fund signature instance.
>>> from swap.providers.bitcoin.signature import Signature
>>> from swap.providers.bitcoin.solver import FundSolver
>>> unsigned_fund_transaction_raw = "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"
>>> sender_root_xprivate_key = "xprv9s21ZrQH143K3XihXQBN8Uar2WBtrjSzK2oRDEGQ25pA2kKAADoQXaiiVXht163ZTrdtTXfM4GqNRE9gWQHky25BpvBQuuhNCM3SKwWTPNJ"
>>> fund_solver = FundSolver(sender_root_xprivate_key)
>>> fund_signature = FundSignature("testnet")
>>> fund_signature.sign(unsigned_fund_transaction_raw, fund_solver)
<swap.providers.bitcoin.signature.FundSignature object at 0x0409DAF0>
"""
if not is_transaction_raw(transaction_raw=transaction_raw):
raise TransactionRawError("Invalid Bitcoin unsigned transaction raw.")
transaction_raw = clean_transaction_raw(transaction_raw)
decoded_transaction_raw = b64decode(transaction_raw.encode())
loaded_transaction_raw = json.loads(decoded_transaction_raw.decode())
if not loaded_transaction_raw["type"] == "bitcoin_fund_unsigned":
raise TypeError(f"Invalid Bitcoin fund unsigned transaction raw type, "
f"you can't sign {loaded_transaction_raw['type']} type by using fund signature.")
# Check parameter instances
if not isinstance(solver, FundSolver):
raise TypeError(f"Solver must be Bitcoin FundSolver, not {type(solver).__name__} type.")
# Set transaction fee, type, network and transaction
self._fee, self._type, self._datas, self._network, self._transaction = (
loaded_transaction_raw["fee"], loaded_transaction_raw["type"], loaded_transaction_raw["datas"],
loaded_transaction_raw["network"], MutableTransaction.unhexlify(loaded_transaction_raw["raw"])
)
# Organize outputs
outputs = []
for output in loaded_transaction_raw["outputs"]:
outputs.append(TxOut(
value=output["value"],
n=output["tx_output_n"],
script_pubkey=Script.unhexlify(
hex_string=output["script"]
)
))
# Sign fund transaction
self._transaction.spend(
txouts=outputs,
solvers=[solver.solve(network=self._network) for _ in outputs]
)
# Encode fund transaction raw
self._type = "bitcoin_fund_signed"
self._signed_raw = b64encode(str(json.dumps(dict(
raw=self._transaction.hexlify(),
fee=self._fee,
network=self._network,
type=self._type,
datas=self._datas
))).encode()).decode()
return self