conversation.js

/*jshint esversion: 6 */
var watson = watson || require('watson-developer-cloud');
let conversationObj = {};
let conversation = watson.conversation({
    url: 'https://gateway.watsonplatform.net/conversation/api',
    password: 'EzAusm47LGKz',
    username: 'b2f8ac80-f812-48ea-899f-707980d46136',
    version: 'v1',
    version_date: '2016-09-20'
});

conversationObj.context = {};

function conversationFn(msg, callback){
    //console.log('Start Conversation');
    
    conversation.message({
        workspace_id: '9d2b65b3-9658-4b64-a89f-58436b442a8b',
        input: {
            'text': msg
        },
        context: conversationObj.context
    }, function(err, response) {
        //console.log('===============');
        //console.log(response);
        //console.log('===============');
        if (err){
            _msg = 'error:' + err;
            _entity = ''
            _node = '';
        }else{
            _msg = response.output.text;
            _entity = response.entities.length ? response.entities[0].entity : '';
            _node = response.output.nodes_visited[0];
        }

        conversationObj.context = response.context;
      //console.log('End Conversation');
        console.log('=================================================================================');
        
        callback(_msg, _node, _entity);
    });
}

module.exports = {
    conversation: conversationFn
};