async function is only available in ES8 dialogflow

[Ayham Darwish]

Hey

i am trying to use async in dailogflow to call an google translate API but i got this error that async function is only available in ES8 and i checked if there is solution in internet but i did not find. 

this is the code i wrote: 

async function detectLanguage(agent , text , target) {

  const translate = new Translate();

  let [translations] = await translate.translate(text, target);

  //translations = Array.isArray(translations) ? translations : [translations];

  agent.add('Translations:');

  translations.forEach((translation, i) => {

    agent.add(`${text[i]} => (${target}) ${translation}`);

  });

}

 and :

function test(agent) {

  const text = 'hej';

  const target = 'en';

    return detectLanguage(agent, text, target).then(result => {

    agent.add('${result}');

    });

  }

please anyone can help me 

[Ted Liu]

If you're using the inline editor, you cannot use async, you will have to use the Promise.

But there's another way to use async, which is to develop locally, so you can use  ES8, you will have to use the ngrok and turn on the webhook for the intents.

Could check out the link as follows and do it step by step, it's pretty easy.

https://medium.com/@antonyharfield/dialogflow-web-hooks-how-to-develop-locally-and-deploy-to-cloud-functions-48839919e998

[Sahil Manekia]

Assuming you found a solution, but I inserted this piece of code in the inline editor which allows async functions to run

// See https://github.com/dialogflow/dialogflow-fulfillment-nodejs

// for Dialogflow fulfillment library docs, samples, and to report issues

'use strict';

// try without jshint and with

/* jshint esversion: 8 */