on_sns_message results in error when triggered by CloudWatch Log Event

[spirittq]

I have created an SNS topic that is subscribed to a lambda function and is triggered when another lambda function errors out (with [ERROR] filter). However, I am trying to test it after chalice is deployed and always receive an error.

[ERROR] KeyError: 'Records'
Traceback (most recent call last):
  File "/var/task/chalice/app.py", line 1564, in __call__
    event_obj = self.event_class(event, context)
  File "/var/task/chalice/app.py", line 1771, in __init__
    self._extract_attributes(event_dict)
  File "/var/task/chalice/app.py", line 1833, in _extract_attributes
    first_record = event_dict['Records'][0]

Which, as I understand, happens in decorator. My actual code doesn't even start:

@app.on_sns_message(topic='error_logger')
def cloudwatch_error(event):
    print(event.subject)
    print(event.message)

Not sure if I'm doing something wrong or not, but wanted to share this.