Attach an iCalendar event to a mail in Grails - email

Question

I've been working with Grails 3.x, specifically with mail and iCalendar plugins, I tried to attach an iCalendar event to my mail Service but it didn't work. I would appreciate so much if someone could help me to fix my code. Here it is:
** This part is my iCalendar structure ** https://github.com/saw303/grails-ic-alender
byte[] iCalendarFile
{
render(contentType: 'text/calendar')
{
calendar
{
events {
event(
start: new Date(),
end: new Date(),
description: 'Event',
summary: 'Some text here',
)
}
}
}
calendar.toString.getBytes('UTF-8')
}
** And then I have my email structure **
def mailService
def emailSender()
{
mailService.sendMail
{
multipart true
to correo
subject "Event"
body "Some text here"
attach "audiencia.ics", "text/calendar", iCalendarFile ()
}
}
Both iCalendarFile and emailSender are in the same Service class.
Thanks for yout support. :)

Answer 1

This is the answer
import ch.silviowangler.grails.icalender.ICalendarBuilder
class NotifierService
{
byte[] emailFile (**params**)
{
def archivo = new ICalendarBuilder()
archivo.calendar {
events {
event( start: new Date(),
end: new Date(),
description: "Description",
summary: "Some text here",
utc: true // optional
)
}
}
archivo.cal.toString().getBytes('UTF-8')
}
mailService.sendMail
{
multipart true
to email#email.com
subject "Subject"
body "Some text here"
attach "event.ics", "text/calendar", emailFile(**params**)
}