Inspired by John McCabe's qrcode function in Go, I made one in C#!
Be sure to follow the instructions on the FaaS repo to deploy the Faas stack.
Get the CLI
You can install the faas-cli via brew install faas-cli or curl -sSL https://get.openfaas.com | sudo sh.
Build and deploy
Build and deploy your stack using the following commands:
$ faas-cli -action build -f ./stack.yml
$ faas-cli -action deploy -f ./stack.yml
Test
Using curl, you can send a URL (or any data) to the function to generate a QR code:
$ curl localhost:8080/function/qrcode -d 'http://get-faas.com' > qrcode.png
Voila! You have a QR code! You can check it via Android using this app.