efx-api-node/src/api/sign/request.js

<img src="https://avatars3.githubusercontent.com/u/33315316?s=200&v=4" align="right" />

module.exports = (efx, contents) => {
  return {
    // headers: new window.Headers(),
    // mode: 'cors',
    // cache: 'default'
    json: JSON.stringify({contents})
  }
}