const axios = require('axios');
let data = JSON.stringify({
  "module": "invoices",
  "data": {}
});

let config = {
  method: 'get',
  maxBodyLength: Infinity,
  url: 'https://api.nizu.io/v2/',
  headers: { 
    'Content-Type': 'application/json', 
    'Authorization': 'Bearer YOUR TOKEN'
  },
  data : data
};

axios.request(config)
.then((response) => {
  console.log(JSON.stringify(response.data));
})
.catch((error) => {
  console.log(error);
});