project structure doc: https://docs.google.com/document/d/1MZTuVvD48gLe7zcLu6xJlhGP-1sOibOEJy7Pt6lDZqU/edit

1. http://54.241.136.35:8080/data/content

   (Get) get all books
   (Post) post a book

2. http://54.241.136.35:8080/data/content/{name}

   (Get) get a book by its name
   Example: Get http://54.241.136.35:8080/data/content/Anthem

3. http://54.241.136.35:8080/data/content/get/{id}

   (Get) get a book by its id
   http://54.241.136.35:8080/data/content/get/12

4. http://54.241.136.35:8080/data/names

   (Get) get all books' names

5. http://54.241.136.35:8080/data/namesId

   (Get) get all books' names and their ids

6. http://54.241.136.35:8080/data/content/{id}

   (Delete) delete a book by its id

7. http://54.241.136.35:8080/time/{time}

   (Post) post time information
   Example: Post http://54.241.136.35:8080/time/13
   Note: time is a string that has no format

8. http://54.241.136.35:8080/time/find/all

   (Get) get all the time information