将我通过 node.js 请求 (https.get) 获得的变量传输到另一个 js 文件

Question

这将是我第一次 post 在这里，所以我可能会含糊其词。我试图通过 node.js 请求获取数据，然后将它们传递给另一个 js 文件，以便适当的 html 文件可以使用它们。此应用程序的文件夹如下所示：

-App
 -node_modules
 -public
  -css
    -styles.css
  -js
    -currentWeather.js
 -app.js
 -currentWeather.html
 -index.html
 -package.json e.t.c

我在 app.js 中写道：

const express = require("express");
const https = require("https");
const bodyParser = require("body-parser");

const app = express();
app.use(express.static('public'));
app.use(bodyParser.urlencoded({extended:true}));


app.get("/",(req,res) => {

  res.sendFile(__dirname + "/index.html");

});
app.post("/", (req,res) =>{

  const city = req.body.city;

  const url = .....

  https.get(url, (response) => {

    response.on("data", (data) => {
      const weatherData = JSON.parse(data);
      
      // and here somehow i want to export variable city and weatherData and send them to this currentWeather.js in public folder because i want to do DOM manipulation and some styling (currentWeather.html) with the data i got.


      // res.sendFile(__dirname + "/currentWeather.html");
    })
  })
})




app.listen(3000, () => {console.log("Server is running on port 3000.");});

以及如何将它们放入此文件中？ - currentWeather.js

Answer 1

您需要使用 promises 来等待回调完成。例如：

const https = require('https');
let result = await new Promise(resolve =>
    require('https').get('https://www.example.com',res => res.on('data',resolve))
);
console.log(result.toString());

只需确保它在 async 函数内：

(async()=>{
    // Do stuff
})()

将我通过 node.js 请求 (https.get) 获得的变量传输到另一个 js 文件

Transferring variables that I got by node.js request (https.get) to another js file

javascript

api

request

node.js

express