Blink has made some changes that appears to have broken @snell excellent custom integration based on an undocumented API. That integration has served us well but at the moment, it appears that it is end of life. See [PROJECT] Driver for Blink API for details. [UPDATE Nov 8: It is not dead yet. See thread.]
Per suggestion in that thread, I'm creating this one to discuss alternative solutions. One alternative is IFTTT assuming that still supports Blink (that's what I was using previously, but now have weened myself off IFTTT and hope to stay that way).
I've now made do with integration with Blink via Alexa. I will post those ideas in this thread shortly.