ngrok is require to make your local app to publically available
eg. to expose localhost:4567 to publically available, you need to run below command.
./ngrok http 4567
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To start node server, run below command
node weather-bot.js
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for config you need to install config:
npm install config
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To working with json file need jsonfile npm:
npm install --save jsonfile
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Need to run below command for page token, if page token changes:
curl -ik -X POST "https://graph.facebook.com/v2.6/me/subscribed_apps?access_token=<page token>"