What is the best way to upload files in a modern browser

Question

I want to upload a (single) file to a server and show the progress of the upload.

I know I can upload a file using HTTP POST. I\'m not familiar with web-sockets, but

Answer 1

Probably the Javascript's file API is the best way in modern browsers:

http://robertnyman.com/2010/12/16/utilizing-the-html5-file-api-to-choose-upload-preview-and-see-progress-for-multiple-files/

http://www.sitepoint.com/html5-javascript-file-upload-progress-bar/

Server side wise... I think any of the main frameworks has the HTTP file POST feature well covered.