将 setInterval() 与数组中的 .map 方法一起使用并作为承诺返回 [英] Using setInterval() with a .map method in array and returning as a promise

问题描述

我有一个函数，它接受一个 ID 列表，将它们转换成一个数组 URL，然后使用 map 函数来触发一个获取请求.它工作得很好，但它触发得太快，并且提供程序抛出错误，因为我们太频繁地访问 API.我需要为请求设置一个间隔，但每次我这样做时，它都不起作用.想法?

I have a function that takes a list of IDs, converts them into an array URLS, then uses the map function to fire a fetch request. It works great but it fires too fast and the provider throws errors because we hit the API too often. I need to set an interval for the request but everytime I do, it doesn't really work. Ideas?

async function getReports(reportIDs) {
    const urls = reportIDs.map(id => `https://api.data.com/api/v1/report/${id}/?include_datasets=true`);
    const requests = urls.map(url => fetch(url, {
        method: 'GET',
        headers: { 'api-key': key }
    }).then(res => res.json()));
    
    const responses = await Promise.all(requests).catch(err => console.error(err));
    return responses;
}

我使用了一个 promise，所以我可以在另一个函数中等待函数的结果来转换数据集.

I use a promise so I can await the results of the function inside another function to transform the datasets.

想法?

推荐答案

如果是 node，有一个相当轻量级的 npm 包，叫做 瓶颈 将限制请求.它工作得很好并且被广泛使用.或者你可以看看那个然后自己动手.

If node, there is a fairly lightweight npm package called bottleneck which will throttle requests. It works quite well and is widely used. Or you can look at that and roll your own.

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