when i used js-file-download in npm,something wrong and i could not solve it

[homecmx]

var fileDownload = require('js-file-download');
this.$axios.post( url,
{headers: {
'responseType': 'arraybuffer',
'Accept': 'application/xls'
}}
).then(function(response) {
fileDownload(response.data, 'user.xls');

the download file is unintelligible text.

[vivek12345]

@Senior-Developers This is some problem with the encoding that is been done from the back end api from where you are getting this response.Check with postman if it works.

[Blankeer]

axios add responseType: 'blob' config, it work for me.

    axios.get(url, {
      responseType: 'blob',
    })
    .then(((res) => {
        fileDownload(res.data, '11.xls');
     }))

[superdopey]

I got base64 data from the server. To use base64 with js-file-download I had to convert the data to a blob. This can be done with the following method:

export const b64toBlob = (b64Data, contentType = '', sliceSize = 512) => {
  const byteCharacters = atob(b64Data)
  const byteArrays = []

  for (let offset = 0; offset < byteCharacters.length; offset += sliceSize) {
    const slice = byteCharacters.slice(offset, offset + sliceSize)

    const byteNumbers = new Array(slice.length)
    for (let i = 0; i < slice.length; i++) {
      byteNumbers[i] = slice.charCodeAt(i)
    }

    const byteArray = new Uint8Array(byteNumbers)
    byteArrays.push(byteArray)
  }

  const blob = new Blob(byteArrays, { type: contentType })
  return blob
}

[kindrowboat]

Closing as I believe the question was answered.