A peer to peer network setup for file sharing.

A central server (in this case firebase server) controls / manages the operations.

initially the central_list (files) is empty , any device 'x' connected to the network can add file 'f' to the central_list

By adding file we mean the central server gets notified that this device 'x' is ready/ willing to share this file 'f'.

• after opening the application the user is presented with a list of files available in the network in a card view format.

• Each card view has option to download this specific file , upon clicking on it starts the process of downloading indicating with a progress bar.

• there is a search bar to search for required files in the central_list/network using name of the file.

So After pressing the download button, how is the process of transfer is done?

High level process is shown in these three pictures

                            request to central server

                            actual file request transfer part

                            acknowledgement and update part