Send An email acknowledging that we got someone's application immediately after they apply. about camp HOT 8 CLOSED

function onFormSubmit(e) {
    var apiKey = 'YOUR API KEY';
    var mailgunServer = 'YOUR MAILGUN SERVER';
    var to = findResponse('First and last name') + ' <' + findResponse('Email') + '>';
    var from = 'Hack Camp Team <[email protected]>';
    var subject = 'Hack Camp applicaiton received - ' + findResponse('First and last name');
    var message = 'Hey ' + findResponse('First and last name') + ', your application to Hack Camp has just been received. We\'ll get back to you within x days';
    var url = 'https://api.mailgun.net/v3/' + mailgunServer + '/messages';
    var payload = {
        'from': from,
        'to': to,
        'subject': subject,
        'text': message
    };
    var headers = {
        'Authorization': 'Basic ' + Utilities.base64Encode(apiKey)
    }
    var options = {
        'method': 'POST',
        'headers': headers,
        'payload': payload,
        'muteHttpExceptions': false
    };
    var response = UrlFetchApp.fetch(url, options);
}

function findResponse (namedValue) {
    var formResponses = FormApp.getActiveForm().getResponses();
    var formResponse = formResponses[formResponses.length-1];
    var itemResponses = formResponse.getItemResponses();
    for (var j = 0; j < itemResponses.length; j++) {
        var itemResponse = itemResponses[j];
        if (itemResponse.getItem().getTitle() === namedValue)
            return itemResponse.getResponse();
    }
}