Rest Apiv2 to retrieve messages with authentication

Hi TariqHussain,

Thanks for your reply. I used below 

$aurl = "https://community.xxxxx.com/auth/oauth2/authorize?client_id=xxxxxxx&response_type=code&redirect_uri=http://redirect.xxx.com/getaccessToken";
print_r($aresponse = drupal_http_request($aurl, array('headers' => array('client_id' => 'xxxx','Content-Type' => 'application/json' ))));
exit;

I received 

stdClass Object ( [code] => -110 [error] => Connection timed out )

Did I miss anything and what is the redirect Url? 

Thanks.

Hi TariqHussain

I used the below request 

https://community.xxxxx.com/auth/oauth2/authorize?client_id=Cxxxxxxx&response_type=code&redirect_uri=http://redirect.example_community.com/getaccessToken

I am receiving  

..
.
.
  [protocol] => HTTP/1.1
    [status_message] => OK
    [headers] => Array
        (
            [date] => Mon, 05 Mar 2018 13:47:25 GMT
            [server] => Apache
            [set-cookie] => LiSESSIONID=xxxxx; Path=/; Secure; HttpOnly,LithiumUserInfo=""; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/,LithiumUserSecure=""; Expires=Thu, 01-Jan-1970 00:00:10 GMT; Path=/,LithiumVisitor=~2EdU7eARNliMf0JTU~ismlM5b4659flt5cOo6S0aig7ASj3dydeq8_Y1F2NZxzQZLt2cFkeOAG8WWOqPZqWUWLldiW5U6rl_SHvwPhPw..; Expires=Thu, 02-Mar-2028 13:47:25 GMT; Path=/; HttpOnly
            [pragma] => no-cache
            [expires] => Thu, 01 Jan 1970 00:00:00 GMT
            [cache-control] => no-cache, no-store, must-revalidate, private
            [x-frame-options] => DENY
            [vary] => Accept-Encoding
            [connection] => close
            [content-type] => text/html;charset=UTF-8
        )

    [code] => 200
    [redirect_code] => 302
    [redirect_url] => https://community.xxxx.co.uk/t5/user/userloginpage?redirectreason=notregistered&dest_url=https%3A%2F%2Fcommunity.xxxx.co.uk%2Ft5%2Foauth%2F2userauthorizationpage

In data i recived Lithium login page with the error message 'Sorry, unable to complete the action you requested.' ?

Please suggest.

Thanks.