from sawtooth_sdk.protobuf.transaction_pb2 import Transaction
signature = signer.sign(txn_header_bytes)
txn = Transaction(header=txn_header_bytes,
header_signature=signature,
payload=payload_bytes)
# Encoding transaction
from sawtooth_sdk.protobuf.transaction_pb2 import TransactionList
txn_list_bytes = TransactionList(transactions=[txn]).SerializeToString()
txn_bytes = txn.SerializeToString()
# Create a batch header
from sawtooth_sdk.protobuf.batch_pb2 import BatchHeader
txns = [txn]
batch_header_bytes = BatchHeader(
signer_public_key=signer.get_public_key().as_hex(),
transaction_ids=[txn.header_signature for txn in txns],
).SerializeToString()
#creating the batch
from sawtooth_sdk.protobuf.batch_pb2 import Batch
def create(self, request):
print(request.data)
# encoding payload
payload = {
"action":"create",
"residuo":request.data
}
payload_bytes = cbor.dumps(payload)
## BUILD TRANSACTION
# Build transaction header
txn_header_bytes = TransactionHeader(
family_name=FAMILY,
family_version=VERSION,
inputs=[PREFIX],
outputs=[PREFIX],
signer_public_key=signer.get_public_key().as_hex(),
# In this example, we're signing the batch with the same private key,
# but the batch can be signed by another party, in which case, the
# public key will need to be associated with that key.
batcher_public_key=signer.get_public_key().as_hex(),
dependencies=[],
payload_sha512=sha512(payload_bytes).hexdigest()
).SerializeToString()
# Create transaction
signature = signer.sign(txn_header_bytes)
txn = Transaction(
header=txn_header_bytes,
header_signature=signature,
payload= payload_bytes
)
# Encode the Transaction
txn_list_bytes = TransactionList(
transactions=[txn]
).SerializeToString()
txn_bytes = txn.SerializeToString()
## BUILD BATCH
# create batch header
txns = [txn]
batch_header_bytes = BatchHeader(
signer_public_key=signer.get_public_key().as_hex(),
transaction_ids=[txn.header_signature for txn in txns],
).SerializeToString()
# create Batch
signature = signer.sign(batch_header_bytes)
batch = Batch(
header=batch_header_bytes,
header_signature=signature,
transactions=txns
)
# BATCHLIST
batch_list_bytes = BatchList(batches=[batch]).SerializeToString()
response = None
# ENVIAR A SERVIDOR
try:
request = urllib.request.Request(
API_URL+'/batches', ## URL SERVIDOR
batch_list_bytes,
method='POST',
headers={'Content-Type': 'application/octet-stream'})
response = urllib.request.urlopen(request)
except HTTPError as e:
response = e.file
response = json.loads(response.read().decode('utf-8'))
link = response["link"].split('=')[1]
requests.get(API_URL+'/batch_statuses',params={'id':link, 'wait':1}).json()
return self.retrieve(None,payload['residuo']['code'])
