Magento Rest API - oAuth Error

Question

I am working with Magento Rest API for the first time, i went through the tutorials of Rest API on http://www.magentocommerce.com/api/rest and tried one example

Answer 1

reason for fatal error is oauth library is not installed. following step to install library

1) get the package from http://downloads.php.net/pierre/

2) search for oauth and choose the one for your machine

3) Put that .dll file in your PHP extensions directory.

4) Find the extensions area in your php.ini file and add this to it:

[PHP_OAUTH] extension=php_oauth.dll

restart your server

after solving fatal error if help is required then check http://www.magentocommerce.com/api/rest/introduction.html for magento REST API

use the sample code given in above link its is used for get Access Token & Access Token Secret etc. you have to just run php file