Data Stream - Periodic Refresh
Hello Folks,
So my short question is... Does any module in Drupal give an API for Periodic Refresh (http://ajaxpatterns.org/Periodic_Refresh) via AJAX?
Background: I am trying to make an auction site using Ubercart. Actually I've also tried e-commerce and trying to write an ec_auction module for which I did the first CVS commit yesterday. I am clearly desperate...
The auction site will have multiple products (upwards of 50-60) going on auction everyday and being accessed by 100,000 users. And typical to an auction site, the current winner, number of bids on a product, time left for auction to finish, etc. are variables that are changing dynamically every second. There is a website named Swoopo ( http://www.swoopo.com ) that does this job pretty well. I've given a lot of detail of how they manage it at this link http://drupal.org/node/422616#comment-1526736
Can someone help me figure out how we can implement this in Drupal? Would appreciate any help you can offer!
Ravdeep
do u have a budget to build
do u have a budget to build and operate this web site?
I dont think u can run this web site on any low cost sharing hosting (say below $5 a month).
If u are plaining to run your own server, I will suggest u to consider a Drupal + Streaming Server (a non drupal, non php part) as your total solution.
U may use Drupal to manage your products and Users as Drupal is a Easy-to-use and powerful CMS.
But since Drupal is PHP dase and PHP is no good for Streaming, u will need a non-php (non drupal) based Streaming part.
A Drupal + Java Streaming may be the right choice for your case. Provided that, u will run your own server, since not so many hosting services support both PHP and Java.
Good luck.
We go the drupal way. How about you?
http://www.drupalway.com
I do have a decent budget...
I do have a decent budget... I am hosting on Amazon EC3 that starts at $0.1 cents an hour. I have a virtual OS image to play around with (so I can have Java + PHP) but am not really sure I understand the integration as you put it...
Do you mean to say that I write a small Java App that just fetches the data from the mysql database and keeps felling a streaming buffer. The Drupal site loads up at the client side with a javascript that has a set_ interval method that asks data from that buffer alone and it means no recompiling any PHP
Sounds feasible but have u ever done something like this or seen someone do it? Honestly, I wouldn't want to reinvent the wheel from scratch... Still early days for me with Drupal code...
no reinvent the wheel is the
no reinvent the wheel is the point why NOT using php for streaming data in your case.
The picture may be like this ..
1. user login and select a auction to join
user checking should be handled by Drupal.
production and auction information are managed by Drupal.
2. auction app
a. a java application which will stream auction data to all users in real time.
b. Remote Shared Object RSO may be used - whenever the bit price changed, all users will be notified. If u have $, u may buy a FMS from adobe. OR Red5 (free).
c. when auction finished, the result pass back to Drupal.
** You may use a Flash swf as your auction interface but not a must.
3. Drupal will take care of the payment, delivery ..etc.
a. u may use ubercart.
Do u want a prove-of-concept demo?
[updated]
Using AJAX may be a light-weight, simple and "Good Enough" solution. Say, if there are less than 5 users bitting an item in the last minute and may accept update in every 10 seconds.
There is a count down feature in Ubercart Auction which may be already good enough for your case.
Good day.
We go the drupal way. How about you?
http://www.drupalway.com