title: How to upload a file to server in ionic2 app if I have its URI?
body: <p>I'm now using this ionic native plugin: <a href="http://ionicframework.com/docs/native/camera/" rel="nofollow noreferrer">Camera</a>, which can give me the image file URI (e.g., <code>assets-library://</code> on iOS or <code>content://</code> on Android). But I don't know how to upload this file to my server. Should I use a normal html form with a <code>&lt;input type="file"&gt;</code>?</p>