https://github.com/princemaple/together

• group notifications to be sent in one email
  • cancel the previously queued email if another event happens within a short period (type: debounce / throttle)
• make heavy operations happen less often, i.e. refresh some global statistics
  • allow only 1 operation per certain period (type: throttle)
• protect some write api
  • additonally you can choose to use the first value in a period (keep: first)
  • or the last value in the period (keep: last)

Designed to work both on a single node and across nodes in a cluster

Checkout the repo README and the docs for more information