Since July 2017, in clojurescript, one can require npm modules using the following syntax:
(:require ["honeybadger-js" :as honeybadger])
The npm module to required is passed as a string.
See https://clojurescript.org/news/2017-07-12-clojurescript-is-not-an-island-integrating-node-modules for the full details.
Currently, tools.namespace consider this form as invalid.