How to send notification to Slack? (NoneType object is not subscriptable)

Asked Jan 29 '20 at 08:35

Active Jan 29 '20 at 10:50

Viewed 53 times

I created slack_alert_dag contains a class SlackAlert to send alerts to slack:

def __init__(self, context_args=None):
        self.domain_config = None
        self.context_args = context_args
        #etc...

def send_to_chat(self, msg):
    connection = BaseHook.get_connection(connection_id)
    print('The connection is: ' + connection)
    if self.domain_config['chat-send-log-level'].lower() == 'info':
        self.send_to_chat(msg)
        #etc...

In run_my_dag dag I do the following:

def run(ds,**kwargs):
    slack = SlackAlert(kwargs)
    dag1.send_to_chat('text_msg')
    #etc...

with dag() ... I use PythonOperator() to print the logs

although the connection is fine, but I do not get alerts (it works if I put the connection definition within run_my_dag but it keeps sending alerts every time the dag is parsed) that's why I take the connection definition out.
I get the error:

if self.domain_config['chat-send-log-level'].lower() == 'info':
    TypeError: 'NoneType' object is not subscriptable

I appreciate your assistance

edited Jan 29 '20 at 10:50

Jamie

1,530
1
19
35

asked Jan 29 '20 at 08:35

DDMYZ

which lib did you use for slack integration ? – Thanh Nguyen Van Jan 29 '20 at 08:49
You are setting config to None then trying to subscript it: self.domain_config = None – Bendik Knapstad Jan 29 '20 at 09:18
@BendikKnapstad that's because I wanted to print 'info' I have another if to handle 'error'. How should i handle this – DDMYZ Jan 29 '20 at 09:25
you have to add the log level to self.domain_config if you want to check the loglevel, so try setting self.doman_config = {'chat-send-log-level': 'info'} – Bendik Knapstad Jan 29 '20 at 09:28

How to send notification to Slack? (NoneType object is not subscriptable)

0 Answers0