Hello,
I use network-weathermap for so long, but never got the chance to contribute.
Finally found ( I hope so ) a way to give the community back something 
: a prometheus datasource for wmap.
It’s still a work in progress, but got the very basic feature to work with wmap.
A bit of context:
Not that long ago I wanted to replace the use of MRTG for network devices BW monitoring ( mainly vendor stuff like cisco/arista/etc ) to something more flexible.
Choice was to use prometheus ( + snmp_exporter ) and Grafana, and it’s doing a fairly good job at it.
MRTG on top of graphing BW, was also providing the RRD for wmap.
No way I could remove wmap as it’s really useful tool to show very quickly how the network is going.
So I decided to work at adding a datasource
Code is avail here ( any review/advice welcome )
https://github.com/lodpp/network-weathermap-prometheus-datasource
It’s already graphing my home network wmap, and I hope to use it at $job after some refactor/rework.
Thanks for all the effort put in wmap !
Nico