nodejs-formaction-sdk-rasa

FormAction SDK for Rasa

Installation :

npm i nodejs-formaction-sdk-rasa

Usage:

const {handleFormAction} = require('nodejs-formaction-sdk-rasa');
handleFormAction(<REQUIRED_SLOTS_ARRAY>, <ENTITIES_ARRAY>, <SLOT_ARRAY>, <TEMPLATE_ARRAY>, <NEXT_ACTION_NAME>, <senderID_OPTIONAL>);

OR

const formAction = require('nodejs-formaction-sdk-rasa');
formAction.handleFormAction(<REQUIRED_SLOTS_ARRAY>, <ENTITIES_ARRAY>, <SLOT_ARRAY>, <TEMPLATE_ARRAY>, <NEXT_ACTION_NAME>, <senderID_OPTIONAL>);

Example:

const {handleFormAction} = require('nodejs-formaction-sdk-rasa');
 
const request = req.body; // from express endpoint in external nodejs actions endpoint
const required_slot = ['origin', 'destination', 'date'];
const entites = request.tracker.latest_message.entities;
const slots = request.tracker.slots;
const templates = request.domain.templates;
const nextAction = 'utter_flight_details';
const senderID = request.sender_id;
//SenderID is used to send out random unrepeating utterance if multiple utterance available. Optional feature to enhance user experience 
 
const formHandle = handleFormAction(required_slot, entities, slots, templates, nextAction);
formHandle.then(resp=>{
    console.log(resp);
    //send the response back to rasa python agent
}).catch(err=>{
    console.log(err);
});

NOTES:

• TURN OFF AUTOFILL for SLOTS in domain, but use the same name as the ENTITIES for SLOTS - SlotFilling happens in the module
• Register utter_ask_<SLOT_NAME> this is used to dynamically utter a question back to the user.
• Register nextAction name - utterance/custom action name in domain. That action will called upon successfully completing slot filling.