Not able to make network call with empty body

[Nanagoud007]

<!i am making post request to payment gate way with no body using default import of node. ES6 -->

Reproduction
const fetch = (...args) => import('node-fetch').then(({default: fetch}) => fetch(...args));
const genrateNiAccessToken = async () => {
const NIPAYMENTGATEWAYURL = 'https://api-gateway.ngenius-payments.com';
const networkPayPayAccessTokenUrl = ${NIPAYMENTGATEWAYURL}/identity/auth/access-token;

try {
const NIAPIKEY = 'your_api_key_here'; // Fill in your actual API key
const tokenResponse = await fetch(networkPayPayAccessTokenUrl, {
method: 'POST',
headers: {
'Content-Type': 'application/vnd.ni-identity.v1+json',
'Authorization': Basic ${NIAPIKEY},
},
// No need for body if no data is being sent
});

if (!tokenResponse.ok) {
  console.log("Token response not OK:", tokenResponse.status);
  return null;
}

const responseData = await tokenResponse.json();
console.log("Token response data:", responseData);
return responseData;

} catch (error) {
console.error("Error fetching token:", error);
return null;
}
};

genrateNiAccessToken();

Steps to reproduce the behavior:

1. run the above code snippet

Expected behavior

Screenshots

Node JS

software	version
node-fetch	^3.3.2
node	18.0.0
npm	9.2.7
Operating System	Ubuntu

Additional context