nodejs异步变同步

Question

nodejs求问
下面代码段中调用了一个promise类型的接口。我现在要对一个数组里的所有数据执行这个接口，异步执行内存就爆了，有什么解决办法吗？或者说如何让这个接口同步执行？

var store = require('app-store-scraper');
const fs = require('fs')
const fast_csv = require('fast-csv')
let input = fs.readFileSync("1.txt").toString().split('\n')

var ws = fs.createWriteStream('./test.csv')
const csvStream = fast_csv.format({ headers: ['appid', 'privacy']});
csvStream.pipe(ws).on('end', () => process.exit());
console.log('pipe ready')

input.forEach((id)=>{
  store.privacy({
    id:Number(id),
  })
  .then((res)=>{
    var out = JSON.stringify(res,null,"\t");
    csvStream.write([id,out]);
  })
  .catch((id)=>console.log(id+' failed'));
})
// csvStream.end();

Answer 1

var store = require('app-store-scraper');
const fs = require('fs')
const fast_csv = require('fast-csv')
let input = fs.readFileSync("1.txt").toString().split('\n')

var ws = fs.createWriteStream('./test.csv')
const csvStream = fast_csv.format({headers: ['appid', 'privacy']});
csvStream.pipe(ws).on('end', () => process.exit());
console.log('pipe ready')

async function execAllPrivacy() {
    for (let i = 0; i < input.length; i++) {
        const id = input[i];
        await store.privacy({
            id: Number(id),
        }).then((res) => {
            var out = JSON.stringify(res, null, "\t");
            csvStream.write([id, out]);
        }).catch((id) => console.log(id + ' failed'));
    }
}

execAllPrivacy();


// csvStream.end();

用for循环才行