Every IT generation has its seminal tome that transcends
time and connects the dots in a way that no book had before it. For the object
oriented generation in the 1980s, it was the Gang of Four (GoF) book. For the
application architecture generation in the 1990s, it was Fowler’s book on
patterns (PoEAA). “RESTful Web Services” will be, in my opinion, that book for
the 2000s Web services generation.
There is something absolutely special about this book that
readers of GoF or PoEAA will immediately recognize and appreciate. The book
covers a breadth of technologies and ideas yet it helps the reader see how they
all connect. It uses short code samples (in Ruby, the choice of this
generation) to illustrate rather than obfuscate the ideas. Most importantly, it
makes the complex comprehensible and delivers epiphany-like experiences
throughout the book.
There are too many highlights in this book to enumerate in
this review. However, some of the coverage that I appreciated most included:
- The
chapters on resource-oriented design, since there was practically no
written information available on this topic prior to this book
- The
chapter on resource-oriented best practices
- An
overview of the service building blocks, including the different
representational formats and WADL, which I wasn’t aware of
- The
chapter comparing and contrasting RESTful services with the “Big” (e.g. SOAP)
service overhead that is common in most enterprise environments
I would have liked to see this book touch on simple POX
versus true REST and handle the resource-oriented security concerns in a bit
more detail but you can only ask so much of any one book. I’m fairly confident
that “RESTful Web Services”, like the seminal tomes that have gone before it, will
become assumed reading