jQuery Ajax 发布请求无法将数据发送到nodejs服务器

Question

I'm creating a video streaming site that keeps the backend informed about the video's play status. However when I try to send the data using an ajax request it it showing up as an empty object {} on the backend:

Client code

data = JSON.stringify({"fish":"pope"})
datasize = data.length
$.ajax({
    dataType:"json",
    type: "POST",
    url:'http://localhost:8080/',
    body: data,
    success: function(data) {console.log('foobar');}
});

Serverside:

app.post("/", (req, res) => {
  res.sendStatus(200);
  console.log(req.body);
});

I've tried putting the data in the data reference also which gives undefined as the output on the server, and setting content-length which is dissallowed. I've also set Access-Control-Allow-* options, and it's working fine when sending requests with Postman.

EDIT: Debug output from browser

Answer 1

On the advise of a commenter, I used the code generated by POSTMan, which seems to work well. I give it below.

var settings = {
  "url": "http://localhost:8080/",
  "method": "POST",
  "timeout": 0,
  "headers": {
    "Content-Type": "application/json"
  },
  "data": JSON.stringify({"foo":"bar"}),
};

$.ajax(settings).done(function (response) {
  console.log(response);
});