在DialogFlow WebHook中使用异步函数 [英] Use Async Functions in DialogFlow WebHook

问题描述

请参阅此处发布的解决方案(

Referring to the solution posted here (DialogFlow V2 Webhook - Expects Speech responses Immediately and not after async requests)
What I want to achieve is that the web hook should wait until I get a response from my api call. P.S: The API is working, its just that the bot doesn't wait for the response to come. Any help would be greatly appreciated. Thanks

const rp = require('request-promise');

    function convert(params){
    return rp('https://data.fixer.io/api/convert?access_key=[my key]&from='+
            params['currency-from']+'&to='+params['currency-to']+'&amount='+params.amount) 
    .then((data) => {
       let responseData = JSON.parse(data);
       let message = responseData.result;
       console.log('Success');
       return Promise.resolve(message);
    }).catch((err)=> {
        return Promise.reject(err);
    });
}

  function currencyConversion(agent) {
        let params = request.body.result.parameters;
        return convert(params)
        .then((message)=> {
             agent.add(`${params.amount} ${params['currency-from']} is ${message} ${params['currency-to']}`);
                return Promise.resolve()
        })
       .catch((err) => {
                console.log(err);
                agent.add("Uh oh, something happened.");
                return Promise.resolve();
            })
  }

let intentMap = new Map();
intentMap.set('Default Welcome Intent', welcome);
intentMap.set('Default Fallback Intent', fallback);
intentMap.set('currency.convert', currencyConversion);

推荐答案

您没有说明要在哪个环境中运行，但是鉴于您的代码以及我上面概述的agent.parameters更改，我能够复制您的将Firebase Cloud Functions与node.js 6.14结合使用时出现问题.

You didn't state what environment you were running in, but given your code, and the agent.parameters change I outlined above, I was able to duplicate your problem using Firebase Cloud Functions with node.js 6.14.

我可以通过使用request-promise-native软件包而不是request-promise使其工作.顾名思义，它使用本机Promises而不是Bluebird Promise软件包，但除此之外，您进行的调用是相同的.

I was able to get it to work by using the request-promise-native package instead of request-promise. As the name suggests, this uses native Promises instead of the Bluebird Promise package, but otherwise the calls you're making are identical.

这篇关于在DialogFlow WebHook中使用异步函数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！