Postman pre-request script to set csrf token as a variable before every requests

postman-set-csrf-token.js

pm.sendRequest({
    url: "localhost:3000/",
    method: "GET",
    header :{
        "accept": "*/*",
    }
},(err, res)=> {
const $ = cheerio.load(res.text());
const csrfToken = $("meta[name='csrf-token']").attr("content"); 
pm.collectionVariables.set("xsrf-token", csrfToken);
})