Generate a link with the id Meeting and preselect completed

Hello,

i search to generate a link with the meeting of contact with the schduled already pre select on Completed.

i don’t know how to call the id of the meeting, and how to do to pre select completed by the link.

I dont know how create an api or something like this.

if you have any tips or something that it can help me i will be glad to hear you.