def get_transaction(self, txid):
url = '{api_url}/tx/{txid}?verbose=3'.format(api_url=self.url,
txid=txid)
try:
LOG.info('GET %s' % url)
r = requests.get(url)
data = r.json()
except Exception as ex:
LOG.error('Unable to get transaction %s from BTC.com: %s' %
(txid, ex))
return {
'error': 'Unable to get transaction %s from BTC.com' % txid
}
data = data['data'] if data['data'] is not None else {}
# todo check key names , test by setting testnet wrong on explorers
tx = TX()
tx.txid = txid
tx.wtxid = data['witness_hash']
tx.lock_time = data['lock_time']
tx.block_height = data[
'block_height'] if 'block_height' in data and data[
'block_height'] != -1 else None
tx.confirmations = data[
'confirmations'] if 'confirmations' in data else None
for item in data['inputs']:
tx_input = TxInput()
tx_input.address = item['prev_addresses'][0] if len(
item['prev_addresses']) > 0 else None
tx_input.value = item['prev_value']
tx_input.txid = item['prev_tx_hash']
tx_input.n = item['prev_position'] if item[
'prev_position'] is not -1 else None
tx_input.script = item['script_hex']
tx_input.sequence = item['sequence']
tx.inputs.append(tx_input)
for i, item in enumerate(data['outputs']):
tx_output = TxOutput()
tx_output.address = item['addresses'][0] if len(
item['addresses']) > 0 else None
tx_output.value = item['value']
tx_output.n = i
tx_output.spent = False if item['spent_by_tx'] is None else True
tx_output.script = item['script_hex']
if item['script_hex'][:2] == '6a':
tx_output.op_return = tx.decode_op_return(item['script_hex'])
tx.outputs.append(tx_output)
return {'transaction': tx.json_encodable()}
def get_transactions(self, address):
pagesize = 50 # max 50 for BTC.com
n_tx = None
transactions = []
page = 1
while n_tx is None or len(transactions) < n_tx:
url = '{api_url}/address/{address}/tx?page={page}&pagesize={pagesize}&verbose=3'.format(
api_url=self.url,
address=address,
page=page,
pagesize=pagesize)
try:
LOG.info('GET %s' % url)
r = requests.get(url)
data = r.json()
except Exception as ex:
LOG.error(
'Unable to get transactions of address %s from BTC.com: %s'
% (address, ex))
return {
'error':
'Unable to get transactions of address %s from BTC.com' %
address
}
data = data['data'] if data['data'] is not None else {}
if all(key in data for key in ('total_count', 'list')):
n_tx = data['total_count']
transactions += data['list']
page += 1
else:
return {'error': 'Received invalid data: %s' % data}
if len(transactions) < n_tx:
sleep(1)
txs = []
for transaction in transactions:
tx = TX()
tx.txid = transaction['hash']
tx.block_height = transaction['block_height']
tx.confirmations = transaction['confirmations']
tx.wtxid = transaction['witness_hash']
tx.lock_time = transaction['lock_time']
for item in transaction['inputs']:
tx_input = TxInput()
tx_input.address = item['prev_addresses'][0] if len(
item['prev_addresses']) > 0 else None
tx_input.value = item['prev_value']
tx_input.txid = item['prev_tx_hash']
tx_input.n = item['prev_position'] if item[
'prev_position'] is not -1 else None
tx_input.script = item['script_hex']
tx_input.sequence = item['sequence']
tx.inputs.append(tx_input)
for i, item in enumerate(transaction['outputs']):
tx_output = TxOutput()
tx_output.address = item['addresses'][0] if len(
item['addresses']) > 0 else None
tx_output.value = item['value']
tx_output.n = i
tx_output.spent = False if item['spent_by_tx'] is None else True
tx_output.script = item['script_hex']
if item['script_hex'][:2] == '6a':
tx_output.op_return = tx.decode_op_return(
item['script_hex'])
tx.outputs.append(tx_output)
# Only append confirmed transactions
if tx.block_height is not -1:
txs.append(tx.to_dict(address))
else:
# subtract 1 from total txs because it is unconfirmed
n_tx -= 1
if n_tx != len(txs):
return {
'error':
'BTC.com: Not all transactions are retrieved! expected {expected} but only got {received}'
.format(expected=n_tx, received=len(txs))
}
else:
return {'transactions': txs}