solar-chat-bot/src/Webhook.js

Agnostic micro-framework for dialogflow fulfillment

const { WebhookClient } = require('dialogflow-fulfillment');

module.exports = class Webhook{
    
    constructor(config, http){
        this.intentsPath = config.intentsPath;
        this.intentsFolder = config.intentsFolder;
        this.headerLog = config.headerLog;
        this.bodyLog = config.bodyLog;
        this.http = http;
    }

    logger(){
        if(this.headerLog)
            console.log('Dialogflow Request headers: ' + JSON.stringify(request.headers));
        
        if(this.bodyLog)
            console.log('Dialogflow Request body: ' + JSON.stringify(request.body));
    }

    

    intentMapper(){
        const intents = require(this.intentsPath);
        let intentMap = new Map();
        for(let intent of intents){
            intentMap.set(intent.name, require(this.intentsFolder+'/'+intent.handler));
        }
        return intentMap;
    }

    run(){
        const { request, response } = this.http;
        const agent = new WebhookClient({ request, response });
        this.logger();
        const intents = this.intentMapper();
        agent.handleRequest(intents);
    }
}