How can I extract and save the data of social network in DB?

Hi, 

I mean I want to create a main class in C# then the goal of this class is connecting to social network as face book or telegram then extract and save the public data of this social networks and save them in a database (SQL SERVER) which is created before. and finally sort the data which is extracted . By the way, I want to have a class which has capability to get used in an interface which is created to use the data in the database which has the extracted data..

Please help me to implement this project.

Thank you.