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Javascript 将AWIS调用更改为异步函数_Javascript_Node.js_Express_Asynchronous - Fatal编程技术网

Javascript 将AWIS调用更改为异步函数

Javascript 将AWIS调用更改为异步函数,javascript,node.js,express,asynchronous,Javascript,Node.js,Express,Asynchronous,我有这个功能: function AlexaCall(website) { var awis = require('awis'); var client = awis({ key: keys.alexa.public, secret: keys.alexa.secret, }); let responseData = []; client({ Action: 'UrlInfo', 'Ur

我有这个功能:

function AlexaCall(website) {
    var awis = require('awis');

    var client = awis({
        key: keys.alexa.public,
        secret: keys.alexa.secret,
    });

    let responseData = [];

    client({
        Action: 'UrlInfo',
        'UrlInfo.Shared.ResponseGroup': 'Rank',
        'UrlInfo.1.Url': 'lupomontero.com',
        'UrlInfo.2.Url': 'yahoo.com',
        'UrlInfo.3.Url': 'weibo.com',
        'UrlInfo.4.Url': 'github.com',
        'UrlInfo.5.Url': 'monono.org'
    }, (err, data) => {
        // res.length === 5
        // data is an array with a response object for each domain
        data.forEach(function (item) {
            //res.write(item.trafficData.dataUrl);
            responseData.push(item);
        });
        console.log(responseData);
        callback(null, JSON.stringify(responseData));
    });
}
是否可以将其编辑为与此类似的行为

async function PageSpeedCall(website) {
    var pagespeedCall = `https://www.googleapis.com/pagespeedonline/v4/runPagespeed?url=https://${website}&strategy=mobile&key=${keys.pageSpeed}`;
    // second call
    var results = await fetch(pagespeedCall);
    return await results.json();
}
第一种方法使用。文档非常清楚,但我需要能够调用如下函数:

async function callAllSites(websites) {
    var psRes = [];
    var mozRes = [];
    for (let website of websites) {
        psRes.push(await PageSpeedCall(website));
        mozRes.push(await MozCall(website));
    }
    return await {'ps': psRes, 'moz': mozRes};
    // return await [psRes, mozRes];
    // return psRes;
}

callAllSites('google.com','stackoverflow.com')
    .then(results => {
        // console.log(results.ps[3].error)
        // console.log(results.error)
        // console.log(results.ps[0].formattedResults.ruleResults)
        console.log(results);
    })
    .catch(error => console.log(error))
    .then(() => console.log('done'));

我需要传递
websites[]
数组,因为这是视图中的内容,用户可以向其中传递多个值。你知道如何解决这个问题吗?

这里有一个手动提示的例子

const awis = require('awis');

async function AlexaCall(website) {

    const client = awis({
        key: keys.alexa.public,
        secret: keys.alexa.secret,
    });

    let responseData = [];

    return new Promise(function (resolve, reject) {
      client({
        Action: 'UrlInfo',
        'UrlInfo.Shared.ResponseGroup': 'Rank',
        'UrlInfo.1.Url': 'lupomontero.com',
        'UrlInfo.2.Url': 'yahoo.com',
        'UrlInfo.3.Url': 'weibo.com',
        'UrlInfo.4.Url': 'github.com',
        'UrlInfo.5.Url': 'monono.org'
      }, (err, data) => {
        if (err) {
          return reject(err);
        }
        // res.length === 5
        // data is an array with a response object for each domain
        data.forEach(function (item) {
            //res.write(item.trafficData.dataUrl);
            responseData.push(item);
        });
        console.log(responseData);
        resolve(JSON.stringify(responseData));
      });
    });
}

async/await与承诺一起工作(异步函数返回承诺,await等待承诺),因此您只需将
awis
的回调api转换为承诺api,它有许多npm模块,搜索“promisify”恐怕不是那么简单,就是我不明白。promisify接受等待回调的函数,在我的例子中,我只调用一个函数。
const client=promisify(awis({key,secret}));const data=等待客户端(查询)awais返回一个回调函数,您将该回调函数包装成一个承诺,然后您可以等待它。它确实进行了调用。问题是我得到了
错误:XML响应缺少aws:response。你知道这是怎么回事吗?好的,我这边有一些逻辑问题,但是代码似乎可以工作。谢谢