基本身份验证有一个 auth参数：

There is an "auth" parameter for Basic Auth:

auth: {
  username: 'janedoe',
  password: 's00pers3cret'
}

来源/文档： https://github.com/mzabriskie/axios

示例：

await axios.post(session_url, {}, {
  auth: {
    username: uname,
    password: pass
  }
});