I'm a bit confused, as there used to be a method in heroku API to restart processes of an app.
Now this API seems to be deprecated and all links are leading to https://devcenter.heroku.com/articles/platform-api-reference where I cannot find any information about restart (even the word restart itself).
Can someone shed some light on it? This is, I believe, along with showing logs, one of the most important API commands for a dev, as you can do most of other tasks via heroku webui.
You have to use Dyno delete: https://devcenter.heroku.com/articles/platform-api-reference#dyno-delete
If you delete a one-off dyno, it won't be restarted, if it's defined in the formation, it will be restarted.
We'll improve the docs, thanks for pointing out this omission.