Kind of a shame to have to hack on the source-code and inject a new URL - would have been better to have used a parameter. Anyway - here's how to do it with OpenFaaS and Python from August 2017 :-) https://blog.alexellis.io/first-faas-python-function/
What are the main benefits of using OpenFaaS except for vendor lock in? 99% of the time, I want a kinesis stream, or S3 event to start my lambdas, which it seems I would have to wire up myself