from confluent_kafka import Consumer, KafkaError

conf = {'bootstrap.servers': "localhost:9092",
        'group.id': "test_group",
        'auto.offset.reset': 'earliest'}

consumer = Consumer(**conf)
consumer.subscribe(['transactions'])

while True:
    msg = consumer.poll(timeout=1.0)
    if msg is None:
        continue
    if msg.error():
        if msg.error().code() == KafkaError._PARTITION_EOF:
            continue
        else:
            print(msg.error())
            break
    print('Received message: {}'.format(msg.value().decode('utf-8')))
consumer.close()