WP Ajax Query allows you to query your WordPress database using the same query paramaters you would use for WP_Query, and return a JSON respresentation of the query results. This allows developers to easily interface with WordPress without having to relearn a new API.
How It Works
The Ajax Query interface would be available at http://example.com/wp-admin/admin-ajax.php?action=query
A sample jQuery request would be like:
$.get(ajaxurl, { action: 『query』 }, function () { }, 『json』);
Querying for a post:
$.get(ajaxurl, { action: 『query』, p: 1 }, function () { }, 『json』);
JSON results:
{
「id」: 1,
「type」: 『post』,
「title」: 「Hello World」,
「permalink」: 「http://example.com/?p=1」
}
Query a category:
$.get(ajaxurl, { action: 『query』, cat: 1 }, function () { }, 『json』);
JSON results:
{
「id」: 1
「type」: 「category」,
「permalink」: 「http://example.com/?cat=1」,
「terms」: [],
「posts」: []
}
terms and `posts` represents an array of either terms that are sub categories of the category, or posts belonging to the category.Why I Created It
Needed a common way to query the database for posts and taxonomies across multiple plugins, and didn』t find a suitable replacement.
