Zionomicon

by John De Goes, Adam Fraser, Milad Khajavi

Zionomicon is the definitive introduction to ZIO, a next-generation Scala library for building scalable, resilient, resource-safe concurrent applications on the JVM. Authored by core ZIO contributors and epic in scope, Zionomicon will help you become a powerful concurrent developer who can quickly solve complex challenges with confidence.

Genres: Software

ebook

Reviews

[Felipe Triana Castañeda · Rating 4 out of 5]

Despite the book I have read is in an earlier version, it is a good summarize of the ZIO capabilities. If you are a ZIO user from the early start of the project, you will find that the knowledge you have been acquiring through practice, mostly because of lack of resources, is finally well formalized and structured in this book.

You will find from beginner topics to advanced topics. It was particularly interesting for me to get into more advanced concepts like STM, concurrent data structures using TRef (TQueue, TSet, TArray, etc), and ZStreams.

I found one piece at the end of the book of incalculable value that explains the variance concept in a formidable way. I have 5 years of experience with Scala, and I have always been struggling with this concept; especially with the black magic of contravariance. The author achieves to illustrate that in a way that makes it transparent for the reader using easy and practical examples. If I forget again about this concept (it will happen with a high chance), at least now I have a resource to which I can come back to make it clear for me again.

[Jiří Mareš · Rating 4 out of 5]

Great book about ZIO, many details and dark corners explained but there are many chapters that are not written yet.