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javascript - 为什么 Zapier SetTimeout 功能不起作用？

问题描述

我正在使用 Zapier 代码 (Javascript) 调用第 3 方 API 来转换货币。每次我点击 Zap，它都会进行大约 40 次 API 调用。

在我通过 Zapier 的输出变量将值发送到下一步之前，我正在使用 setTimeout 延迟并确保值可用并且 API 调用已完成，但似乎它们被忽略了......整个 zapier 动作执行在 384 毫秒内。

我与 Zapier 交谈并被告知他们确实支持 setTimeout。我究竟做错了什么？我想不明白... ：）

**在下面的答案中更新

//This code runs API calls for all Amount, OOP and GM currency conversions.
//* Note - Timeout is used to allow the API calls to finish and ensure those results are set and available before setting the final Zapier output values.

var fromAmt;
var fromOOP;
var fromGM;
var fromCur = inputData.currency;

//set input values from Zapier and replace with "0" if null

if (inputData.amount == null){fromAmt = 0;}
if (inputData.outofpocket == null){fromOOP = 0;}
if (inputData.gm == null){fromGM = 0;}

var toCur = ["USD", "EUR", "INR", "GBP", "SGD", "AUD", "CNY", "HKD", "ARS", "AED", "MXN", "NZD", "BRL", "CAD", "SEK", "COP"];

var dAmt = {"USD":10,"EUR":0,"INR":0,"GBP":0,"SGD":0,"AUD":0, "CNY":0, "HKD":0, "ARS":0, "AED":0, "MXN":0, "NZD":0, "BRL":0, "CAD":0, "SEK":0, "COP":0};
var dOOP = {"USD":0,"EUR":0,"INR":0,"GBP":0,"SGD":0,"AUD":0, "CNY":0, "HKD":0, "ARS":0, "AED":0, "MXN":0, "NZD":0, "BRL":0, "CAD":0, "SEK":0, "COP":0};
var dGM = {"USD":0,"EUR":0,"INR":0,"GBP":0,"SGD":0,"AUD":0, "CNY":0, "HKD":0, "ARS":0, "AED":0, "MXN":0, "NZD":0, "BRL":0, "CAD":0, "SEK":0, "COP":0};

output = [{amtUSD: 0,
             amtEUR: 0,
             amtINR: 0,
             amtGBP: 0,
             amtSGD: 0,
             amtAUD: 0,
             amtCNY: 0,
             amtHKD: 0,
             amtARS: 0,
             amtAED: 0,
             amtMXN: 0,
             amtNZD: 0,
             amtBRL: 0,
             amtCAD: 0,
             amtSEK: 0,
             amtCOP: 0,
             oopUSD: 0,
             oopEUR: 0,
             oopINR: 0,
             oopGBP: 0,
             oopSGD: 0,
             oopAUD: 0,
             oopCNY: 0,
             oopHKD: 0,
             oopARS: 0,
             oopAED: 0,
             oopMXN: 0,
             oopNZD: 0,
             oopBRL: 0,
             oopCAD: 0,
             oopSEK: 0,
             oopCOP: 0,
             gmUSD: 0,
             gmEUR: 0,
             gmINR: 0,
             gmGBP: 0,
             gmSGD: 0,
             gmAUD: 0,
             gmCNY: 0,
             gmHKD: 0,
             gmARS: 0,
             gmAED: 0,
             gmMXN: 0,
             gmNZD: 0,
             gmBRL: 0,
             gmCAD: 0,
             gmSEK: 0,
             gmCOP: 0,}];

function setOutput()
{
  output["amtUSD"] = dAmt["USD"];
             output["amtEUR"] = dAmt["EUR"];
             output["amtINR"] = dAmt["INR"];
             output["amtGBP"] = dAmt["GBP"];
             output["amtSGD"] = dAmt["SGD"];
             output["amtAUD"] = dAmt["AUD"];
             output["amtCNY"] = dAmt["CNY"];
             output["amtHKD"] = dAmt["HKD"];
             output["amtARS"] = dAmt["ARS"];
             output["amtAED"] = dAmt["AED"];
             output["amtMXN"] = dAmt["MXN"];
             output["amtNZD"] = dAmt["NZD"];
             output["amtBRL"] = dAmt["BRL"];
             output["amtCAD"] = dAmt["CAD"];
             output["amtSEK"] = dAmt["SEK"];
             output["amtCOP"] = dAmt["COP"];
             output["oopUSD"] = dOOP["USD"];
             output["oopEUR"] = dOOP["EUR"];
             output["oopINR"] = dOOP["INR"];
             output["oopGBP"] = dOOP["GBP"];
             output["oopSGD"] = dOOP["SGD"];
             output["oopAUD"] = dOOP["AUD"];
             output["oopCNY"] = dOOP["CNY"];
             output["oopHKD"] = dOOP["HKD"];
             output["oopARS"] = dOOP["ARS"];
             output["oopAED"] = dOOP["AED"];
             output["oopMXN"] = dOOP["MXN"];
             output["oopNZD"] = dOOP["NZD"];
             output["oopBRL"] = dOOP["BRL"];
             output["oopCAD"] = dOOP["CAD"];
             output["oopSEK"] = dOOP["SEK"];
             output["oopCOP"] = dOOP["COP"];
             output["gmUSD"] = dGM["USD"];
             output["gmEUR"] = dGM["EUR"];
             output["gmINR"] = dGM["INR"];
             output["gmGBP"] = dGM["GBP"];
             output["gmSGD"] = dGM["SGD"];
             output["gmAUD"] = dGM["AUD"];
             output["gmCNY"] = dGM["CNY"];
             output["gmHKD"] = dGM["HKD"];
             output["gmARS"] = dGM["ARS"];
             output["gmAED"] = dGM["AED"];
             output["gmMXN"] = dGM["MXN"];
             output["gmNZD"] = dGM["NZD"];
             output["gmBRL"] = dGM["BRL"];
             output["gmCAD"] = dGM["CAD"];
             output["gmSEK"] = dGM["SEK"];
             output["gmCOP"] = dGM["COP"];
}

async function getConversionAsync(type, fcur, tcur, amt) {
  let response = await fetch('https://data.fixer.io/api/convert?access_key=xxx&from=' + fcur + '&to=' + tcur + '&amount=' + amt);
  let data = await response.json();
  if (type == "Amount"){
     dAmt[tcur] = await parseFloat(data.result.toString()).toFixed(2);
     }
  else if (type == "OOP"){
    dOOP[tcur] = await parseFloat(data.result.toString()).toFixed(2);
    }
  else if (type == "GM"){
    dGM[tcur] = await parseFloat(data.result.toString()).toFixed(2);
    }
}

function getConvertedAmounts(fAmt,fOOP,fGM,cur){
  var i; 

  for (i=0; i < toCur.length; i++){
  getConversionAsync("Amount", cur,toCur[i],fAmt);
  }

  for (i=0; i < toCur.length; i++){
  getConversionAsync("OOP", cur,toCur[i],fOOP);
  }

  for (i=0; i < toCur.length; i++){
  getConversionAsync("GM", cur,toCur[i],fGM);
  }
}

getConvertedAmounts(fromAmt,fromOOP,fromGM,fromCur);

//In Zapier this is where we write the values out to the next function
setTimeout(function(){ setOutput(); }, 5000);

标签： javascriptpromisefetchzapier

解决方案

几点：

  1. 不要使用setTimeout(). 您只能猜测超时值。5000 或其他任何值可能太长或太短。允许返回的承诺fetch()和response.json()确定时间非常简单——无需猜测。

  2. 允许您的函数接受参数并返回结果。通过这样做，调用函数可以直接处理返回的值/对象，并且可以避免外部成员，例如dAmt, dOOP, dGM, fAmt, fOOP, ; fGM大多数会成为内部成员getConvertedAmounts()。

  3. AsgetConversionAsync是异步的，并且callsgetConvertedAmounts()也是（根据定义）异步的。getConversionAsync()getConvertedAmounts()

  4. 不需要初始化output。如果任何调用失败，错误处理getConversionAsync()可用于设置转换的默认值。fetch()

  5. 的人口output可以在几行代码中程序化。

你可能会得到这样的结果：

function setOutput(dAmt, dOOP, dGM) {
    let output = {};
    Object.keys(dAmt).forEach(function(key) {
        output["amt" + key] = dAmt[key];
    });
    Object.keys(dOOP).forEach(function(key) {
        output["oop" + key] = dOOP[key];
    });
    Object.keys(dGM).forEach(function(key) {
        output["gm" + key] = dGM[key];
    });
    return output;
}
async function getConversionAsync(fcur, tcur, amt) {
    try {
        let response = await fetch(`https://data.fixer.io/api/convert?access_key=xxx&from=${fcur}&to=${tcur}&amount=${amt}`);
        let data = await response.json();
        return parseFloat(data.result.toString()).toFixed(2);
    }
    catch(error) {
        console.log(error); // optional
        return 0; // or maybe return -1 to signify an error?
    }
}
async function getConvertedAmounts(inputData) {
    let fAmt = inputData.amount || 0;
    let fOOP = inputData.outofpocket || 0;
    let fGM = inputData.gm || 0;
    let cur = inputData.currency;
    let toCur = ["USD", "EUR", "INR", "GBP", "SGD", "AUD", "CNY", "HKD", "ARS", "AED", "MXN", "NZD", "BRL", "CAD", "SEK", "COP"];
    let dAmt = {};
    let dOOP = {};
    let dGM = {};
    for (const curCode of toCur) {
        dAmt[curCode] = await getConversionAsync(cur, curCode, fAmt);
        dOOP[curCode] = await getConversionAsync(cur, curCode, fOOP);
        dGM[curCode] = await getConversionAsync(cur, curCode, fGM);
    }
    return setOutput(dAmt, dOOP, dGM);
}
getConvertedAmounts(inputData)
.then(output => {
    // do whatever is necessary with output
})
.catch(error => {
    // something went wrong
});

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