How does redirecting from a post method to get method work? - express

Question

The server doesn't recognize any get request except for the post method after executing some queries in the mongodb.
The express middleware takes the post method and after interacting with the database and using the res.redirect() to get to other get methods, the server doesn't recognize the request at all. I tried using res.all(). This showed that the request was seen but no action was taken.
var express = require('express');
var router = express.Router();
var Product = require('../models/product');
router.get('/', function(req, res, next) {`//homepage
res.render("index");
}
router.post('/add',function(req,res next){
//Product model
var prod = new Product({
//data here
});
prod.save(function(err,res2){
if(err){
console.log(err);
return res.redirect('/error');
}
else{
mongoose.disconnect();
console.log("Complete1");
return res.redirect('/');
console.log ("Complete2);
}
});
}
After I get to the post method it should redirect to the homepage

Answer 1

The problem may not be with the backend, but with the frontend. If you are using AJAX to send your POST request, it is specifically designed to not change your url.
Use window.location.href after AJAX's request has completed (in the .done()) to update the URL with the desired path, or use JQuery: $('body').replaceWith(data) when you receive the HTML back from the reques