Got missing parameter error while doing fetch post

What is the right way to supply the post data?

The following is my call:

const httpResponse = await fetch(fullUrl, {
method: ‘POST’ ,
headers: {
‘Content-Type’ : ‘application/json’
body: ‘{“name”:“ttt”, “description”:“ddd”}’

The site monitor got the following error:
“status”:400,“error”:“Bad Request”,“message”:“Required String parameter ‘name’ is not present”.

Did you manage to make the request work on postman or any other format?
How did you create the request body? you should use JSON.stringify() on the object.