poly-on-fire is a collection of proof-of-concept projects using Polymer and Firebase
| Pete Carapetyan | TL;DR? blog | TL;DR? video: |
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The idea is to prove out an approach or component in the simplest project first, before combining it with other code in a real project.
Facebook Messenger chat bot code deployed to Firebase, barely if at all even relevant to Polymer.
I do have mine running on a polymer app, and especially the rewrite code below does help you figure out how to do functions and a single page app on the same firebase host, but otherwise this is mostly all a nodeJs app as code is shown on this project
Most of this code was taken directly from this video, except obviously the nodeJs setup on firebase
How to do the facebook side is covered pretty well in this video, starting around 11:30 minutes
Mostly from first 5 minutes of this video
curl -X GET "https://<mydeployedsite>/webhook?hub.verify_token=<mychallengetoken>&hub.challenge=CHALLENGE_ACCEPTED&hub.mode=subscribe"
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In firebase.json there is a rewrite which you would need to be able to make the webhook nodeJs function work on a page that is otherwise single page app.
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It is only a co-incidence that I got this to work from experimentation. Mainly the rewrite has to be in order of the ** last! Your single page app won't work if ** is first!
You will also need this line to put in your access code from the bash shell:
firebase functions:config:set pmpageaccesstoken.key="PM_PAGE_ACCESS_TOKEN" pmpageaccesstoken.id="<access token>"
This is the code in index.js that get's that value back out:
functions.config().pmpageaccesstoken.id
This is the url to learn more about how to use env variables in firebase functions:
You could obviously hard code the access code straight in the index.js, but that doesn't apply to me because it's public on github :) where you're reading it now.
Everything went pretty nearly like the videos show, except I spent a lot of time doing this on various objects to learn how to parse the messages from facebook:
console.log("SOME MESSAGE: \n "+stringify(req.body));