Simple Task 1

Readme.md

Here is the full code file which you have to upload to any php supporting server also you need a redis server, you can install it on the same one.

Exmaple api :

http://139.59.6.153/api.php?keyword=bitcoin

http://139.59.6.153/api.php?country=in

http://139.59.6.153/api.php?country=in&category=technology

http://139.59.6.153/api.php?country=in&category=technology&keyword=macbook

api.php

<?php
$countryMasterArray = array('ae','ar','at','au','be','bg','br','ca','ch','cn','co','cu','cz','de','eg','fr','gb','gr','hk','hu','id','ie','il','in','it','jp','kr','lt','lv','ma','mx','my','ng','nl','no','nz','ph','pl','pt','ro','rs','ru','sa','se','sg','si','sk','th','tr','tw','ua','us','ve','za');
$categoryMasterArray = array('business','entertainment','general','health','science','sports','technology');
define('API_KEY', 'd01247434ac64da3bb65cf98fac7f36d');
define('API_URI','https://newsapi.org/v2/');
define('REDIS_HOST','localhost');
define('REDIS_PORT','6379');
header('Content-Type: application/json');
if($_REQUEST){
	$country = isset($_REQUEST['country']) ? $_REQUEST['country'] : '';
	$category = isset($_REQUEST['category']) ? $_REQUEST['category'] : '';
	$keyword = isset($_REQUEST['keyword']) ? $_REQUEST['keyword'] : '';
	if($country && $country!=''){
		if(in_array($country, $countryMasterArray)){
			$getData['country'] = $country;
		}else{
			$getData['country']='';
			$data['status']=0110;
			$data['msg']='Please provide country in the 2-letter ISO 3166-1 code, Example are showing in the country object response';
			$data['country'] = $countryMasterArray;
			print_r(json_encode($data));
			die();
		}
	}
	if($category && $category!=''){
		if(in_array($category, $categoryMasterArray)){
			$getData['category'] = $category;
		}else{
			$getData['category']='';
			$data['status']=0110;
			$data['msg']='Please provide category, Example are showing in the category object response';
			$data['category'] = $categoryMasterArray;
			print_r(json_encode($data));
			die();
		}
	}
	if($keyword!=''){
		$type='everything';
		$getData['keyword'] = $keyword;
		$resultNew = GetData($type,$getData);
		$OutPutData['status']['code'] = 200;
		$OutPutData['status']['msg'] = 'success';
		$OutPutData['data'] = $resultNew;
		print_r(json_encode($OutPutData));
		die();
	}else{
		$getData['keyword']='';
		$type='top-headlines';
		$resultNew = GetData($type,$getData);
		$OutPutData['status']['code'] = 200;
		$OutPutData['status']['msg'] = 'success';
		$OutPutData['data'] = $resultNew;
		print_r(json_encode($OutPutData));
		die();
	}
}
// function to get the data from redis if present oterwise get from source and save it in redis
function GetData($type,$getData){
	$redis = new Redis();
	$redis->connect(REDIS_HOST, REDIS_PORT);
	$redis->setOption(Redis::OPT_PREFIX, 'NewsApi:');	
	$redisKey = md5($type.'--'.$getData['country'].'--'.$getData['category'].'--'.$getData['keyword']);
	if(!$redis->exists($redisKey)){
		// Get data from source and save it in redis
		$qurStr='?apiKey='.API_KEY;
		if($getData['keyword'] && $getData['keyword']!=''){
			$qurStr .= '&q='.$getData['keyword'];
		}
		if($getData['country'] && $getData['country']!=''){
			$qurStr .= '&country='.$getData['country'];
		}
		if($getData['category'] && $getData['category']!=''){
			$qurStr .= '&category='.$getData['category'];
		}
		$uri = API_URI.$type.$qurStr;
		$resultNew = getApiResponseByCurl($uri);
		$masterNews = array();
		foreach($resultNew['articles'] as $news){
			$data=array();
			$data['country'] = $getData['country'];
			$data['category'] = $getData['category'];
			$data['keyword'] = $getData['keyword'];
			$data['Title'] = $news['title'];
			$data['url'] = $news['url'];
			$data['Description'] = TrimContent($news['content'],100);
			array_push($masterNews, $data);
		}
		$redis->set($redisKey, json_encode($masterNews));
		$redis->expire($redisKey,600);	
	}
	$data = $redis->get($redisKey);
	return json_decode($data);
}
// function to trim content to first 100 words not char but response is smaller then 100 words now using char  .
function TrimContent($phrase, $max_words) {
   // this code is to trim the
   // $phrase_array = explode(' ',$phrase);
   // if(count($phrase_array) > $max_words && $max_words > 0)
   //    $phrase = implode(' ',array_slice($phrase_array, 0, $max_words)).'...';
   // return $phrase;
	$pos=strpos($phrase, ' ', $max_words);
	return substr($phrase,0,$pos ); 
}
// function to call the newsapi.org end point with curl
function getApiResponseByCurl($url=''){
    $result = array();
    if(!empty($url)){
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_URL,$url);
        $result=curl_exec($ch);
        curl_close($ch);
        $result = json_decode($result,true);
        return $result;
    }
    return $result;
}

?> 

Server is closed.