@ souvikg10 Thank you very much for your reply. I am able to save this data but since this data is encrypted i had written a script to retrieve data in conversation format. I want to extract this data on real time. Currently each time i have to run script to get the conversation
You can try this
https://redis.io/topics/pubsub
I never did this with redis, though I have done with google pub/sub
it works with event listeners
Ok sure. I will try this. Thanks again 
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