What parameters are required to create an "Add to Google Calendar" link?

Question

We can use this link to add a new event to Google Calendar by parameters

https://www.google.com/calendar/render? action=TEMPLATE& text=EventName& dates=20131206T050000Z/20131208T060000Z &location=EventLocation& sprop=name:Name& sprop=website:EventWebite& details=EventDetail& sf=true& output=xml 

But I can't find any documentation about these parameters.

Does anyone know where's it?

Answer 1

Explanation about the available parameters:

anchor address: http://www.google.com/calendar/event? This is the base of the address before the parameters below.   action:     action=TEMPLATE     A default required parameter.      src:     Example: src=default%40gmail.com     Format: src=text     This is not covered by Google help but is an optional parameter     in order to add an event to a shared calendar rather than a user's default.      text:     Example: text=Garden%20Waste%20Collection     Format: text=text     This is a required parameter giving the event title.      dates:     Example: dates=20090621T063000Z/20090621T080000Z             (i.e. an event on 21 June 2009 from 7.30am to 9.0am              British Summer Time (=GMT+1)).     Format: dates=YYYYMMDDToHHMMSSZ/YYYYMMDDToHHMMSSZ            This required parameter gives the start and end dates and times            (in Greenwich Mean Time) for the event.      location:     Example: location=Home     Format: location=text     The obvious location field.      trp:     Example: trp=false     Format: trp=true/false     Show event as busy (true) or available (false)      sprop:     Example: sprop=http%3A%2F%2Fwww.me.org     Example: sprop=name:Home%20Page     Format: sprop=website and/or sprop=name:website_name  add:     Example: add=default%40gmail.com     Format:  add=guest email addresses  details: (extra)     Example: details=Event%20multiline%0Adetails     Format:  details=description text (google also accepts html in this text) 

http://useroffline.blogspot.com/2009/06/making-google-calendar-link.html