Filtering posts without page reload in Wordpress using ajax is not a hard thing to do. I would say this is both a beginners guide and an advanced guide at the same time.
If you’re here because you want to connect your php code to an external API, please check my cURL api-calls with php tutorial first. This is part 2 of how to connect to an API using cURL in php, as I received a lot of questions on how to connect if the API requires authentication (utoken) […]
Ajax load more posts in WordPress. The API comes shipped with Wordpress and this will give us an easy solution to this problem.
No clue on how to make PHP API calls with cURL? I recently made some integrations and had a lot of problems figuring this out. This article might help you!