Chatbots and Oracle Cloud Services by Soham Dasgupta

Posted: May 25, 2017 in Cloud, JDeveloper & ADF, Mobile
Tags: , , ,
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Thanks to Oracle A-Team, I had a chance to work with Chatbots.
3 pure NodeJS applications, on couple of Oracle Cloud platforms and Facebook messenger, and my chatbot was running.
Let me explain, the architecture a bit. To start with, following is the simple representation of how it works.

Message Platform Server : Is a NodeJS application, deployed on Oracle Application Container cloud, acts as a channel between Facebook Messenger and the chatbot engine. It simply converts the incoming messages from Facebook and sends it to chatbot readable format. Also, when chatbot replies, it converts to Facebook readable formats and passes it to messenger.
Chatbot Engine : Is a NodeJS application, which communicate with some REST APIs based on a conversation flow document and moves the flow of the conversation from one state to another.
Flow JSON : Where we document, every state of a conversation and which APIs to call to generate a response. For example, at the beginning of the conversation, start from "menu" state, and call "/start" API. The flow metadata file is driving the behavior of the bot engine.  The bot engine uses a finite-state-machine (FSM) to drive the conversation. Every step in the conversation is modeled as a state, and all possible next steps to move the conversation to a next state are defined as state transitions.  Every time a state is entered, the response elements defined for this state in the flow metadata are processed and the response is constructed and returned to the messaging platform. Read the complete article here.

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