如何使用 NodeJS 以间隔发出 API 请求

Question

sorry if this question has already been asked, I searched for it but couldn't find anything clear.

How can I make API requests with intervals with NodeJS, for example, one request every 20 seconds?

This so I can respect the API limits, if I make all the requests at once, it'd crash.

Not sure if it matters, but I'm using Axios for the requests.

Please tell me if any other information is needed. Thank you!

Answer 1

It should be easy enough to to this with setInterval , the interval is specified in milliseconds.

If you need more control over when the api is called, eg using a cron expression to schedule calls, I'd suggest trying node-cron .

const axios = require("axios");

async function callApi() {
    let response = await axios( { url: "https://jsonplaceholder.typicode.com/users" });
    console.log("Response:", response.data);
} 

function callApiEveryNSeconds(n) {
    setInterval(callApi, n * 1000);
}

callApiEveryNSeconds(20);

Answer 2

This was the best solution to my case:

    let i = 0;
    let idInterval = setInterval(() => {
      if (i < dataFortheAPI.length) {
        funtionThatMakestheApiRequest(dataFortheAPI[i]);
        i++;
      } else {
        clearInterval(idInterval);
      }
    }, 22000);

Answer 3

You can use https://www.npmjs.com/package/request for the API request and setInterval().