Answers for "set default headers axios"

axios get with headers

let auth = ``; //auth key
let url = ``; //api url

const axios = require(`axios`);
axios({
    method: 'get',
    url: url,
    headers: {
        "Authorization": auth
    },
}).then(function (res) {
    console.log(res.data)
});

axios defaults headers common

// GET request for remote image
axios({
  method: 'get',
  url: 'http://bit.ly/2mTM3nY',
  responseType: 'stream'
})
  .then(function(response) {
  response.data.pipe(fs.createWriteStream('ada_lovelace.jpg'))
});