Four body format for POST (form-data, x-www-form-urlencoded, raw, binary)

Four body format for POST

format-data

multipart/form-data, it can upload multiple key-values and files.

// axios simple sample
let formData = new FormData();
formData.append("username", "username");
formData.append("password", "password");

axios({
  method: "post",
  url: "xxx",
  data: formData,
  headers: {
    "Content-Type": "multipart/form-data",
  },
})

x-www-form-urlencoded

application/x-www-from-urlencoded, it converts data to key-values and cannot upload files.

raw

It can upload text in any format. We always upload JSON data in this way.

content-type	Note
text/plain	Text
application/javascript	JavaScript
application/json	JSON
text/html	HTML
application/xml	XML

binary

application/octet-stream, only binary data can be upload, usually used to upload files. Because it is not key-value format, only one data can be passed at once.