您可以在axios的响应中找到文件名

You can find your filename in the response of axios

var axios = require('axios')
var fs = require('fs')

axios({
    method:'get',
        url:'https://myapi.com/files/4hjiguo4ho45946794526975429',
        responseType:'stream'
    })
.then(function(response) {
    let headerLine = response.data.headers['content-disposition']
    let startFileNameIndex = headerLine.indexOf('"') + 1
    let endFileNameIndex = headerLine.lastIndexOf('"')
    let filename = headerLine.substring(startFileNameIndex, endFileNameIndex)
    response.data.pipe(fs.createWriteStream(filename))
});

希望此回复对您有帮助