Description

When creating a Producer/Consumer, user is expected to provide configuration based on librdkafka configuration. When we try to set OAUTH options, we get an error:

cimpl.KafkaException: KafkaError{code=_INVALID_ARG,val=-186,str="Property "oauthbearer_token_refresh_cb" must be set through dedicated .._set_..() function"}

We want kafka to contact our OAUTH server and get authenticated to de/serialize messages.

How to reproduce

from confluent_kafka import DeserializingConsumer

config = {
    "bootstrap.servers": "localhost:9094",
    "group.id": "test-01",
    "enable.auto.commit": "true",
    "auto.commit.interval.ms": "1000",
    "auto.offset.reset": "earliest",
    "sasl.mechanism": "OAUTHBEARER",
    "oauthbearer_token_refresh_cb": lambda x: logger.info(f"TEST {x}"),
    "security.protocol": "SASL_SSL",
}
consumer = DeserializingConsumer(config)

Checklist

Please provide the following information:

• confluent-kafka-python and librdkafka version (confluent_kafka.version() and confluent_kafka.libversion()): ('1.4.0', 17039360), ('1.4.0', 17039615)
• Apache Kafka broker version: 2.4
• Client configuration: {...}
• Operating system: Linux Mint 19.2
• Provide client logs (with 'debug': '..' as necessary)
• Provide broker log excerpts
• Critical issue