Force download GET request using axios

I tried some of the above suggested approaches but in my case the browser was sending me the popup block warning. The code described below worked for me:

axios.get(url, {responseType: 'arraybuffer'})
   .then(function (response) {
     var headers = response.headers();
     var blob = new Blob([response.data],{type:headers['content-type']});
     var link = document.createElement('a');
     link.href = window.URL.createObjectURL(blob);
     link.download = "Your_file_name";
     link.click();
});

You're getting empty PDF 'cause no data is passed to the server. You can try passing data using data object like this

  axios
    .post(`order-results/${id}/export-pdf`, {
      data: {
        firstName: 'Fred'
      },
      responseType: 'arraybuffer'
    })
    .then(response => {
      console.log(response)

      let blob = new Blob([response.data], { type: 'application/pdf' }),
        url = window.URL.createObjectURL(blob)

      window.open(url) // Mostly the same, I was just experimenting with different approaches, tried link.click, iframe and other solutions
    })

By the way I gotta thank you so much for showing me the hint in order to download pdf from response. Thank ya :)

                var dates = {
                    fromDate: 20/5/2017,
                    toDate: 25/5/2017
                }

The way in which I have used is,

axios({
  method: 'post',
  url: '/reports/interval-dates',
  responseType: 'arraybuffer',
  data: dates
}).then(function(response) {
  let blob = new Blob([response.data], { type: 'application/pdf' })
  let link = document.createElement('a')
  link.href = window.URL.createObjectURL(blob)
  link.download = 'Report.pdf'
  link.click()
})

Try this: It works perfectly for me with compatibility for Internet Explorer 11 (createObjectURL doesn't work on Explorer 11)

axios({
  url: 'http://vvv.dev',
  method: 'GET',
  responseType: 'blob', // important
}).then((response) => {
  if (!window.navigator.msSaveOrOpenBlob){
    // BLOB NAVIGATOR
    const url = window.URL.createObjectURL(new Blob([response.data]));
    const link = document.createElement('a');
    link.href = url;
    link.setAttribute('download', 'download.pdf');
    document.body.appendChild(link);
    link.click();
  }else{
    // BLOB FOR EXPLORER 11
    const url = window.navigator.msSaveOrOpenBlob(new Blob([response.data]),"download.pdf");
  }
});

https://gist.github.com/javilobo8/097c30a233786be52070986d8cdb1743