Cloud Function returns undefiend when using POST

Question

I am trying to send the param name in the Cloud Function managed by Firebase using POST method, I've read quite a few documentation, and no matter what I try it always returns undefined. Also is it safe to use this for sensitive data?

Client-Side

fetch(`https://<<APP-NAME>>.cloudfunctions.net/addCardForExistingCustomer`, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      JSON.stringify(body: {'name': 'Name'})
    })
    .then(response => response.json())
    .then(data => {
        console.log(data);
    })
    .catch(err => console.error(err));

Server-side (Firebase Cloud-Functions)

exports.addCardForExistingCustomer = functions.https.onRequest(async (request, response) => {

  let name = await request.body.name
    
  response.json({
    response: `${name}`
  })

})