C# Web Api and Socket Server?

Question

API

Who can help solve the following two Web Api tasks for a fee
1. The server will receive post requests from the iOS application (the application will send a url to a photo or video)
2. The server will download photos / videos and send data to the application
Socket Server
1. Server will receive post requests from the iOS application (the application will send a url to a photo or video)
2. The server will download photos/videos and send ready-made photos and videos to the application

Answer 1

for tasks there is https://freelance.habr.com/
as well as
WebSockets: https://docs.microsoft.com/ru-ru/aspnet/core/funda...
WebAPI: https://docs.microsoft.com /en-us/aspnet/core/web-a...