The program should write the received book when a connection closes.
The filename is book_xx.txt where "xx" is the number (order) in which the connection was accepted.
Acceptance criteria:
The correct number of books are written, e.g. if you have three connections your program should write three files: book_01.txt, book_02.txt and book_03.txt.
The book order is correct.
The output book matches the content of the original book.
The program should write the received book when a connection closes. The filename is book_xx.txt where "xx" is the number (order) in which the connection was accepted.
Acceptance criteria: