At present (Q2/2017) getting a bit long in the tooth and needing a refresher – but it remains an awesome way to embed maps in your JS/TS apps.
One map is: * https://cdnjs.cloudflare.com/ajax/libs/datamaps/0.5.8/datamaps.nzl.js But this shows – when zoomed in – that it's a bit rough: But to make a map for traffic, etc. remember that you don't zoom in, so it's fine. * https://github.com/markmarkoh/datamaps/blob/master/src/js/data/nzl.topo.json The world hires is even worse (and also has some glitches), again, think it's ok for the purpose of showing nz. * https://github.com/markmarkoh/datamaps/blob/master/src/js/data/world.hires.topo.json