def gen_kin_2_payment_op(dest: xdr_type.AccountID,
src: Optional[xdr_type.AccountID] = None,
raw_amount: int = 1000) -> xdr_type.Operation:
"""Generate a payment operation.
"""
body = xdr_pack.nullclass()
body.type = xdr_const.PAYMENT
alphaNum4 = xdr_pack.nullclass()
alphaNum4.assetCode = b'KIN'
# the test Kin 2 blockchain asset issuer
alphaNum4.issuer = gen_account_id_from_address(
'GBC3SG6NGTSZ2OMH3FFGB7UVRQWILW367U4GSOOF4TFSZONV42UJXUH7')
body.paymentOp = xdr_type.PaymentOp(
destination=dest,
asset=xdr_type.Asset(
type=xdr_const.ASSET_TYPE_CREDIT_ALPHANUM4,
alphaNum4=alphaNum4,
),
amount=raw_amount,
)
return xdr_type.Operation(
sourceAccount=[src] if src else [],
body=body,
)
def gen_tx_envelope_xdr(src: xdr_type.AccountID,
seq: int,
operations: List[xdr_type.Operation],
memo: xdr_type.Memo,
fee: int = 0,
v: int = 0) -> bytes:
"""Generate a transaction envelope xdr with the provided parameters.
:return bytes
"""
ext = xdr_pack.nullclass()
ext.v = v
envelope = xdr_type.TransactionEnvelope(tx=xdr_type.Transaction(
sourceAccount=src,
fee=fee,
seqNum=seq,
timeBounds=[xdr_type.TimeBounds(
minTime=0,
maxTime=0,
)],
memo=memo,
operations=operations,
ext=ext,
),
signatures=[
xdr_type.DecoratedSignature(
hint=b'xxxx',
signature=b'signature')
])
xdr_envelope = xdr_pack.StellarXDRPacker()
xdr_envelope.pack_TransactionEnvelope(envelope)
return xdr_envelope.get_buffer()
def gen_merge_op_result(result_code: int) -> xdr_type.OperationResult:
"""Generates a merge operation result.
"""
tr = xdr_pack.nullclass()
tr.type = xdr_const.ACCOUNT_MERGE
tr.accountMergeResult = xdr_type.AccountMergeResult(result_code)
return xdr_type.OperationResult(xdr_const.opINNER, tr)
def gen_payment_op_result(result_code: int) -> xdr_type.OperationResult:
"""Generates a payment operation result.
"""
tr = xdr_pack.nullclass()
tr.type = xdr_const.PAYMENT
tr.paymentResult = xdr_type.PaymentResult(result_code)
return xdr_type.OperationResult(xdr_const.opINNER, tr)
def gen_create_op_result(result_code: int) -> xdr_type.OperationResult:
"""Generates a create account operation result.
"""
tr = xdr_pack.nullclass()
tr.type = xdr_const.CREATE_ACCOUNT
tr.createAccountResult = xdr_type.CreateAccountResult(result_code)
return xdr_type.OperationResult(xdr_const.opINNER, tr)
def gen_result_xdr(tx_result_code: int,
op_results: List[xdr_type.OperationResult],
fee: int = 0,
v: int = 0) -> bytes:
"""Generates a result XDR with the provided parameters.
:return bytes
"""
result = xdr_pack.nullclass()
result.code = tx_result_code
result.results = op_results
ext = xdr_pack.nullclass()
ext.v = v
tx_result = xdr_type.TransactionResult(fee, result, ext)
xdr_tx_result = xdr_pack.StellarXDRPacker()
xdr_tx_result.pack_TransactionResult(tx_result)
return xdr_tx_result.get_buffer()
def gen_create_op(src: xdr_type.AccountID,
dest: xdr_type.AccountID) -> xdr_type.Operation:
"""Generate a create account operation.
"""
body = xdr_pack.nullclass()
body.type = xdr_const.CREATE_ACCOUNT
body.createAccountOp = xdr_type.CreateAccountOp(destination=dest)
return xdr_type.Operation(
sourceAccount=[src],
body=body,
)
def gen_merge_op(src: xdr_type.AccountID,
dest: xdr_type.AccountID) -> xdr_type.Operation:
"""Generate a merge operation.
"""
body = xdr_pack.nullclass()
body.type = xdr_const.ACCOUNT_MERGE
body.destination = dest
return xdr_type.Operation(
sourceAccount=[src],
body=body,
)
def gen_payment_op(dest: xdr_type.AccountID,
src: Optional[xdr_type.AccountID] = None,
amount: int = 10) -> xdr_type.Operation:
"""Generate a payment operation.
"""
body = xdr_pack.nullclass()
body.type = xdr_const.PAYMENT
body.paymentOp = xdr_type.PaymentOp(
destination=dest,
asset=xdr_type.Asset(xdr_const.ASSET_TYPE_NATIVE),
amount=amount,
)
return xdr_type.Operation(
sourceAccount=[src] if src else [],
body=body,
)
