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1. Upload the entire oauth-provider folder to the /wp-content/plugins/ directory.
2. Activate the plugin through the 'Plugins' menu in WordPress.

The control panel of OAuth Provider is in 'OAuth Provider'.

After enabled this plugin, you can access URLs as below: (suppose your WordPress's URL is http://example.com/)

• http://example.com/oauth/request_token The URL to obtain a Request Token.
• http://example.com/oauth/authorize The URL to obtain User authorization.
• http://example.com/oauth/access_token The URL to issue an Access Token.
• http://example.com/oauth/(method name) The URL to call a OAuth method using a Consumer key and an Access Token.

The OAuth method sayHello, which is implemented in this plugin for now, is simply returning a user name.

You can register a method using add_oauth_method($name, $method). You can use this function like add_filter().

You can easily add the sayHello method like below:

add_oauth_method('sayHello', create_function('$request, $userid, $username', 'return "Hello {$username}!";'));

To execute the registered sayHello method, access the URL below:

http://example.com/oauth/sayHello