Как отправить Post запрос с JSON?

$.ajax({
  type: "POST",
  url: 'ip:5000/buy',
  data: {
    "name1": "data1",
    "nameArray": [array],
    "name2": "data2"
},
  dataType: 'json'
});

Access-Control-Allow-Headers "Content-Type";
Access-Control-Allow-Origin 'EXAMPLE.ORG';
Access-Control-Allow-Credentials "true";