request-js-ajaxcallback

var ajaxRequest = new htmldb_Get(null, $v("pFlowId"), "APPLICATION_PROCESS=GETWEBFTPJSON", $v("pFlowStepId"));
var ajaxReturn = ajaxRequest.get();

console.log(ajaxReturn);
alert(ajaxReturn);

if (ajaxReturn != null) {
    var xmlHttpRequest = new XMLHttpRequest();

    xmlHttpRequest.open("POST", "https://api-dev.citizensrx.com/backoffice/v1/homedir", true);
    xmlHttpRequest.setRequestHeader("Content-type" , "application/json");
    xmlHttpRequest.setRequestHeader("Authorization", "Bearer "+$v('P193_TOKEN'));

    xmlHttpRequest.onreadystatechange = function () {

        var varlog = 'xmlHttpRequest.readyState: '   + xmlHttpRequest.readyState + '\n' +
                     'xmlHttpRequest.status: '       + xmlHttpRequest.status     + '\n' +
                     'xmlHttpRequest.responseText: ' + xmlHttpRequest.responseText;

        console.log(varlog);
        alert(varlog);

        if (xmlHttpRequest.readyState == 4 && xmlHttpRequest.status == 500) {
            $s('P193_ERRO', JSON.parse(xmlHttpRequest.responseText).errors[0].defaultMessage);
        }

        if (xmlHttpRequest.readyState == 4 && xmlHttpRequest.status == 401) {
            $s('P193_ERRO', JSON.parse(xmlHttpRequest.responseText).message);
        }

        if (xmlHttpRequest.readyState == 4 && xmlHttpRequest.status == 400) {
            $s('P193_ERRO', JSON.parse(xmlHttpRequest.responseText).message + ' - Username '+$v('P192_WEBFTP_USERNAME')+' already registered.');
        }

        if (xmlHttpRequest.readyState == 4 && xmlHttpRequest.status == 200) {
            $s('P193_SUCESS'     , JSON.parse(xmlHttpRequest.responseText).message);
        }
        apex.submit('SAVE');
    }

    var data = ajaxReturn;

    xmlHttpRequest.send(data);
} else {
    alert('Erro ao criar json');
}