'list' object has no attribute 'get_body' in EventHub trigger - Azure/azure-functions-python-worker GitHub Wiki

Affects on Python Functions Applications

Some EventHub trigger may have "cardinality"="many" setting in their function.json file, and if the EventHub trigger only handles a single event, this will BREAK.

import azure.functions as func

def main(event: func.EventHubEvent):

Since the event parameter now has a proper list of events, instead of a single event.

How To Mitigate

In EventHub triggers function.json, change the cardinality to one.

Alternatively, change the EventHub trigger to process multiple events in one go. from

def main(event: func.EventHubEvent):
    event.get_body()

to

def main(events: List[func.EventHubEvent]):
    for event in events:
        event.get_body()