Authenticate + Authorize WP REST API request before built-in WP JSON Schema Payload Validation?

Alright, guess I figured it all out: Has WP Core been updated to do JSON Schema – based request argument validation automatically now? It seems that that’s the case, yes. If you provide a proper JSON schema, as shown in the example, when using register_rest_route, payload validation is executed automatically, without the provision of a … Read more

Calling a Rest API with parameters on button Click

@TomJNowell pointed you the way to go. You have to enqueue a JS file, and within this JS file you can use any technique to do the REST request, like an XMLHttpRequest object or the fetch API. The REST API itself, of course, is part of WordPress, and defined with register_rest_route(). It is also something … Read more