Simple select2 for posts via WP API

script.js

$( '#search' ).select2( {
		ajax: {
			url: API.root + '/wp/v2/posts',
			processResults: function( data, page ) {
				console.log( data );
				return {
					//do something results
				}
			},
			cache: false,
			data: function ( params ) {
				var query = {
					search: params.term,
					page: params.page
				};
				return query;
			},
			delay: 250,
		}
	} );

see-also.md

• https://gist.github.com/joehoyle/c5b48707aeee116bc6a4
• https://github.com/danielbachhuber/customizer-ajax-select/blob/master/assets/js/customizer-ajax-select.js