Push notification transmitter + Firebase function with micro-controller

raspberrypi3
wifi
resin-cli
network

#1

Looking for the controller and its functions which has the good compatibility to use with mesh network and as well as at same time send the data to firebase cloud using WiFi connection or Ethernet connection,
As to be very specific I am using wireless push notification transmitters https://store.ncd.io/product/4-channel-push-notification-contact-closure-input-over-wifi/ which I have made compatible by using special software for PC but want to learn for making the data to send online servers so that data will stored in online servers also,
I have learnt about some basic idea but still any better way to make this possible will be much helpful.