JS - HTTP 请求使用不同的结果 function

Question

I have a GET request to get data (a string) from an URL using following code:

var https = require('https');
let urldata;

var options = {
    host: 'test.com',
    path: '/test.php'
}
var request = https.request(options, function (res) {
    let data = '';
    res.on('data', function (chunk) {
        data += chunk;
    });
    res.on('end', function () {
        urldata = data; 
        console.log(urldata);  //Returns the retrieved data from URL into console
    });
});
request.end();

Now I have a second function that needs the data that I get from the Request abvoe:

async execute(message, args, Discord, client) {
    message.author.send(urldata);
}

The issue with that is "urldata" is "undefined" in the second function because the first one is async and didn't give a result yet. I've read that I will have to use "callback" or "promise" in order to use the data from the first function in my second one. I tried around with that but couldn't get a working result.

It would be awesome if someone could help me out with recoding this to a callback or promise so the data from the first function could be used for the second function.

Answer 1

 const urldata = await Promise(resolve => { var request = https.request(options, function (res) { let data = ''; res.on('data', function (chunk) { data += chunk; }); res.on('end', function () { resolve(data) }); }); request.end(); }) console.log(urldata); //Returns the retrieved data from URL into console // Now you can run the second function with "urldata" in it