Razorpay not returning payment_id,order_id etc. upon successfull payment - node.js

Question

I have one function that is responsible of creating order using razorpay and verify that order .
The code for that function is : -
const paymentMethod = async ()=>{
if(!isAuthenticated())
{
toast.error('Please signin to continue');
history.push('/signin')
// return <Redirect to='/signin' />
return;
}
try{
// console.log(JSON.stringify(total));
const obj = {
amount:total
}
let data = await fetch('http://localhost:3100/api/checkout',{
method:'POST',
headers:{
"content-type":"application/json",
Accept:"application/json"
},
body: JSON.stringify(obj)
})
let {order} = await data.json()
console.log(order)
console.log(order.amount)
const options = {
key: "rzp_test_cXj3ybg8fawS9Y",
amount: order.amount,
currency: "INR",
name: "YO! Merchandise",
description: "Pay Please",
image:yo,
order_id: order.id,
callback_url: "http://localhost:3100/api/paymentverification",
prefill: {
name: "Aakash Tiwari",
email: "tiwaryaakash00#gmail.com",
contact: "8750043604"
},
notes: {
address: "Razorpay Corporate Office"
},
theme: {
color: "#13C962"
}
};
let rzp1 = await new window.Razorpay(options);
rzp1.open();
}
catch(err){
console.log(err)
}
}
But this function when call callback_url upon successfull payment it is not passing the payment_id,order_id etc. other neccessary details.
when i try to console.log there the req.body is always empty.