Gemini API

gemini.php

<?php
/* Example code to access Gemini API: Fetch advertiser information, create a new campaign and read specific campaign data
 
Prerequisites:
  1. Sign up for an account on https://admanager.yahoo.com
  2. Download YahooOAuth2.class.php file from here: https://github.com/saurabhsahni/php-yahoo-oauth2/blob/master/YahooOAuth2.class.php
  3. PHP modules for json_decode & curl
  4. A webserver running this code on port 80/443. Yahoo OAuth callback is only supported on these ports
*/
require "YahooOAuth2.class.php"; 

#Your Yahoo API consumer key & secret with access to Gemini data 

define("CONSUMER_KEY","<your consumer key>");
define("CONSUMER_SECRET","<your consumer secret>");
$redirect_uri="http://".$_SERVER['SERVER_NAME'] . $_SERVER['PHP_SELF'];//Or your other redirect URL - must match the callback domain 

$gemini_api_endpoint="https://api.admanager.yahoo.com/v1/rest";

$oauth2client=new YahooOAuth2();

if (isset($_GET['code'])){
	$code=$_GET['code'];	
} 
else {
	$code=0;
}

if($code){
	 #oAuth 3-legged authorization is successful, fetch access token 	
	 $token=$oauth2client->get_access_token(CONSUMER_KEY,CONSUMER_SECRET,$redirect_uri,$code);

	 #Access token is available. Do API calls.	 

	 $headers= array('Authorization: Bearer '.$token,'Accept: application/json','Content-Type: application/json');

	 #Fetch Advertiser Name and Advertiser ID
	 $url=$gemini_api_endpoint."/advertiser/";

	 $resp=$oauth2client->fetch($url,$postdata="",$auth="",$headers);
	 $jsonResponse = json_decode( $resp);
	 $advertiserName = $jsonResponse->response[0]->advertiserName; 
	 $advertiserId = $jsonResponse->response[0]->id; 
	 echo "Welcome ".$advertiserName;
}
else {
    # no valid access token available, go to authorization server 
    header("HTTP/1.1 302 Found");
    header("Location: " . $oauth2client->getAuthorizationURL(CONSUMER_KEY,$redirect_uri));
    exit;
}

?>