How to Record video using Asp.net Web API

It seems you have provided very high level of requirement here.

 

first let me ask you - do you understand what Web API does and in which situation that can be used? If not I suggest you to please read something on Web API first, try few on hand projects.

 

if you already have worked on Web API - then instead of asking for whole solution, post here what you have done and where you are stuck.