const wooClientKey = 'ck_00000000000000000000000000'; const wooClientSecret = 'cs_00000000000000000000000000'; const wooUrl = 'https://yoursite.com/wp-json/wc/v3/products'; function basicAuth(key, secret) { let hash = btoa(key + ':' + secret); return "Basic " + hash; } let auth = basicAuth(wooClientKey, wooClientSecret); function getData(url) { jQuery.ajax({ url: url, method: 'GET', beforeSend: function (req) { req.setRequestHeader('Authorization', auth); } }) .done(function (data) { console.log(data); return data; }); } getData(wooUrl);