Can I get Heroku Logs to return only lines outlining errors?

Question

The heroku logs are a great resource to check what happened to your app when things go wrong.. Unfortunately, they also log a great deal of information. Is there some way I can

Answer 1

Don't forget the --app flag. e.g.

heroku logs --app my-live-app | grep -i error

What I found helpful was the -d parameter: setting the type of log e.g. -d web Good when you have workers running tasks in the background and you just want to see whats going on with Web.

Otherwise what @leonardoborges said I'd agree with. NewRelic or similar can work well.