Simple pageviews counter for select most viewed ids by last N days

Store counts in redis as sorted sets

Used:

• nodejs (expressjs)
• redis
• docker

Install

Run in development mode:

git clone https://github.com/nechehin/pageviewsd.git
cd pageviewsd
cp app/config-example.json app/config.json

and set config vars in app/config.json. Run application by:

docker-compose -f docker-compose.yml -f dev.yml up

Run in production:

git clone https://github.com/nechehin/pageviewsd.git
cd pageviewsd
cp app/config-example.json app/config.json

and set config vars in app/config.json, include redis connection url. Also you can change application port in docker-compose.yml

Run application by:

docker-compose up -d

Redis connection configuration (example)

Set in app/config.json:

"redis": {
    "url": "redis://127.0.0.1:6379?db=0&password=redispass"
},

where:

• 127.0.0.1:6379 - redis host and port
• db=0 - redis DB number
• password=redispass - redis auth password

API

• http://localhost:8080/hit/{label}/{ID} - Hit view, return GIF zeropixel
• http://localhost:8080/get/{label} - Get most viewed IDs in config.max_days period, return JSON
• http://localhost:8080/get/{label}/1 - Get most viewed IDs for today, return JSON

where

• http://localhost:8080 - host and port where application running
• {label} - counter label from config.json

Use in Wordpress

Install counter

Paste to single.php of your theme

<script>
    (new Image()).src="http://localhost:8080/hit/{label}/<?php echo (int)$post->ID ?>?r"+Math.random();
</script>

where

• http://localhost:8080 - host and port where application running
• {label} - counter label name from config.json

Query most viewed posts

// How many posts we need
$limit = 10;

// Initial query filter
$filter = array( 'posts_per_page' => $limit );

// Get json with ids from pageviewd
$mostViewedIds = json_decode(file_get_contents('http://localhost:8080/get/{label}?limit=' . $limit), true);

// If response successful and not empty - add ids to query filter
// else we get last posts
if ($mostViewedIds) {
    $filter['include'] = $mostViewedIds;
}

$posts = get_posts($filter);

where

• http://localhost:8080 - host and port where application running
• {label} - counter label from config.json