从javascript上传文件到Rails服务器

Question

I want to upload an image to my Rails server (my front end uses Marionette.js).

It seems extremely simple, however I could not find any straightforward solution. There is a list of different solutions , but they all use third-party libraries and require complex workarounds. Is there no easy solution to achieve something as simple as this?

Answer 1

I believe you can accomplish this with a simple XMLHttpRequest. You can review the sample code form MDN here:

function reqListener () {
  console.log(this.responseText);
}

var oReq = new XMLHttpRequest();
oReq.onload = reqListener;
oReq.open("get", "yourFile.txt", true);
oReq.send();