def add_block(self, block_id, root='merkle_root'):
txn_header = TransactionHeader(batcher_pubkey='pubkey',
family_name='family',
family_version='0.0',
nonce=block_id,
signer_pubkey='pubkey')
txn = Transaction(header=txn_header.SerializeToString(),
header_signature=block_id,
payload=b'payload')
batch_header = BatchHeader(signer_pubkey='pubkey',
transaction_ids=[txn.header_signature])
batch = Batch(header=batch_header.SerializeToString(),
header_signature=block_id,
transactions=[txn])
blk_header = BlockHeader(block_num=len(self._store),
previous_block_id=self._chain_head_id,
signer_pubkey='pubkey',
batch_ids=[batch.header_signature],
consensus=b'consensus',
state_root_hash=root)
block = Block(header=blk_header.SerializeToString(),
header_signature=block_id,
batches=[batch])
self._store[block_id] = block
self._chain_head_id = block_id
def create_batch(transactions, signer):
transaction_signatures = [t.header_signature for t in transactions]
header = BatchHeader(signer_public_key=signer.get_public_key().as_hex(),
transaction_ids=transaction_signatures)
header_bytes = header.SerializeToString()
signature = signer.sign(header_bytes)
batch = Batch(header=header_bytes,
transactions=transactions,
header_signature=signature)
return batch
def _create_batch(self, transactions):
"""
Create batch for transactions
"""
transaction_signatures = [t.header_signature for t in transactions]
header = BatchHeader(
signer_public_key=self._signer.get_public_key().as_hex(),
transaction_ids=transaction_signatures
).SerializeToString()
signature = self._signer.sign(header)
batch = Batch(
header=header,
transactions=transactions,
header_signature=signature)
return batch
def make_batches(cls, *batch_ids):
"""Returns Batch objects with the specified ids, and each with
one Transaction with matching ids.
"""
batches = []
for batch_id in batch_ids:
txns = cls.make_txns(batch_id)
batch_header = BatchHeader(
signer_public_key='public_key',
transaction_ids=[t.header_signature for t in txns])
batch = Batch(header=batch_header.SerializeToString(),
header_signature=batch_id,
transactions=txns)
batches.append(batch)
return batches