Asterisk Conference Call Rest API

Please review this website [login to view URL] I need to replicate there backend using only asterisk. That requires implementing asterisk to my AWS server. To be specific , I need a developer to add asterisk to my server and develop a secure rest api that will prank call two people for you using asterisk in my server. Please use the website i linked above to understand exactly what kind of prank calling I'm trying to implement. After the call is made through the server it should record the call up to 30 seconds , 1 min or 2 min only and play and audio file in the end before the call ends. This audio file will be provided by me. This audio file will be saved via my google firebase could storage. After implementing asterisk and making the functionality work. I need a secure rest api to call via my ios app. A example rest api url that should be called from my app is www.website.com/person1=708555?persontwo=708555?durationMinutes=1 This rest api should make the call and return a status url that will return json of the status of the call. Specifically who didn't answer or if the call didn't go through. Please look at my ios app below for a better visual of what backend im trying to create.