How to retrieve the penultimate redirected URL

Hi,

This has been discussed before somewhat in a previous thread (https://github.com/node-fetch/node-fetch/issues/978). I have what I thought was a very simple problem that I am struggling to resolve. Full disclosure, I am very new to coding.

I am trying to GET the redirected temporary URL with status 302 code that displays just prior to my webpage. I then need to parse the URL to get a certain query parameter for a subsequent POST call.

My app is built with ReactJS as frontend and express/nodejs as backend.

I have noted the below https://github.com/node-fetch/node-fetch/issues/978

but what I am struggling with is to understand how to get this code to run when I am on subdirectory “/webpage”.

This may be very very wrong, but what I have attempted is the below. I’ve adapted the code from the above thread as a function

export var url  = `https://<mywebpage>/webpage`;

function script () {
    var response = fetch(previousURL, {
        method: 'GET',
    }).then(response => {
        console.log(response.url).else(error => console.log(error))});

    return (response.url);
};

export default script();

I have then written the below code so this function loads when my “/webpage/” loads:

const express = require('express');
const app = express();
const script = require("./script.js");

app.get('/webpage', (req, res) => {
    script();
})

app.listen(3000);

Really appreciate any help 😃))

[sofian-ysf]

Hi Jimmy,

Thanks for the suggestion. I’ve tried the above, but I’m still not getting the previous (status 302) redirect url returned.

[jimmywarting]

I guess you are looking for:

const res = await fetch(url, {
  redirect: 'manual'
})
res.headers.get('location')