Put request into Spring Boot Controller - ajax

Question

Im trying to send a json string with ajax to my spring boot controller but i keep getting the error net::ERR_TOO_MANY_REDIRECTS, and there are a bunch of $csrfError after the url. I've looked at tons of other websites and questions but I still can't get it to work. how do i correctly setup my ajax request so that my controller will accept the data?
ive already tried changing the method type to post and changing the RequestParams to ResponseBody but i went back to RequestParams
my ajax function
function deleteEvent() {
var startTime = document.getElementById('newStartTime').value;
var endTime = document.getElementById('newEndTime').value;
var type = document.getElementById('newTimeOffType').value;
var search = {startTime: startTime, endTime: endTime, type: type};
if(confirm("Are you sure you want to delete this event?")){
$.ajax({
method: 'PUT',
contentType: 'application/json',
url: '/vacation/deleteEvents',
dataType: 'json',
data: JSON.stringify(search),
success: function () {
console.log('success');
},
error: function (e) {
console.log(e);
}
})
}
else {
alert('you said no')
}
my spring controller
#RequestMapping(value = "/vacation/deleteEvents", method=RequestMethod.PUT)
#ResponseBody
public String deleteCalendarEvents(#RequestParam String startTime, #RequestParam String endTime, #RequestParam String type, HttpSession session ){
User user = (User) session.getAttribute("currentUser");
System.out.println("startTime: " + startTime);
System.out.println("endTime: " + endTime);
System.out.println("type: " + type);
return null;
}
i want it to print out the starttime, endtime, and type into my console but i keep getting this error.