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()