Step 2: Verify Log Drain

First you can verify whether the log drain data is coming by looking at the router logs of the collector app:

heroku logs -d router -t -a [your-collector-app-name]

If this shows no output, wait a few minutes and try again; sometimes it can take a moment for data to start coming in.

You're looking for messages like the following:

2018-05-20T21:20:40.993026+00:00 heroku[router]: at=info method=POST path="/logs/TESTAPP_URL" host=testapp-pganalyze-collector.herokuapp.com request_id=564088b7-05a9-4def-8aa0-3861b25f9334 fwd="55.22.33.44" dyno=web.1 connect=0ms service=0ms status=200 bytes=135 protocol=https

Note the path here: it should correspond to the log drain you've configured in the previous step, e.g.:

path="/logs/TESTAPP_URL"

Once you see router logs for this path, proceed to the next step: