see heroku logs code example
Example 1: heroku logs
# Display all logs live
heroku logs -t -a YOUR_APP_NAME
# Only display stdout of your app
heroku logs -t -s app -a YOUR_APP_NAME
Example 2: heroku logs
heroku logs --tail
Example 3: check heroku logs
Go to the heroku logs bit of the heroku dashboard.
Or, run this in shell when you're in the heroku app directory:
heroku logs
Or, for real time web logs (like flask logs, if you know what I mean), type;
heorku logs --tail