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From Michael Marth <>
Subject Re: Asking opinions about "Learning OpenWhisk" a book from O'Reilly I am writing
Date Tue, 25 Sep 2018 10:59:33 GMT
Hi Michele,

Congratulations for getting an O'Reilly contract. That's awesome!
Also, this list is totally the right place for this topic (IMO).

I have a little comment about the TOC: the way I read it your intended audience are OW users
(action developers), not developers of OW itself. Is that right? However, even for the former
group it is often helpful to know how their action code actually gets executed. So maybe a
chapter about the internal architecture of OW would be helpful.


´╗┐On 19.09.18, 18:32, "Michele Sciabarra" <> wrote:

    Hello all, 
    I am not sure if it is appropriate to talk of this on the mailing list or not. If not
please let me know and I will stop immediately and apologize for this post. I assume for now
it is acceptable (because I saw similar discussions on other mailing lists on the Apache Group),
so I post this.
    As some community members already know,  I wrote some chapters (6) of a book on OpenWhisk
(so you know what you did when I disappeared for a few months :)), then I was close to release
it as open source and I asked what to do of them on the Slack channel.  In a sense the book
was complete and ready to release.
    To my surprise, instead of recommending to release the book as Open Source I was told
instead that publishing it with a prestigious editor would have been better. 
    So I dared to propose the book to the (IMHO) most prestigious technical publisher I know,
O'Reilly, and guess what, the book was approved! 
    The chapters I wrote so far focus on Javascript. However, I was recommended (by Carlos
and Rodric) not to talk only of Javascript. There is a lot of stuff on Javascript people are
looking for learning about other languages.
    So I ended up with a plan to cover also Python and Go.
    This is the planned TOC so far. I am asking for opinions on it:
    TItle: Learning OpenWhisk
    Part1: Introducing Serverless Development  in JavaScript
    - Serverless and OpenWhisk Architecture
    - A Simple Serverless Application in JavaScript
    - OpenWhisk CLI and JavaScript API
    - Common Patterns in OpenWhisk 
    - Integration Patterns in OpenWhis
    - Testing OpenWhisk Applications
    Part 2: Advanced Serverless Development in Python and GoLang
    - Using Python in OpenWhisk
    - Using Databases in OpenWhisk
    - Creating an Alexa Skill in Python
    - Using GoLang in OpenWhisk
    - Using Message Queues in OpenWhisk
    - Creating a Slackbot in GoLang
    - Deployment with wskdeploy
    - Installing OpenWhisk in Kubernetes
    The key concern is if a similar TOC is acceptable and making the best compromise, or the
book could be too wide (and hard to read) for the potential audience. 
    In my opinion, it should be a good compromise between completeness without requiring too
many skills. But here I am open to hearing other opinions. For example, I thought to stick
only to javascript but then I would lose more advanced aspects that can be of interests to
many developers. 
    Note I can share freely drafts or chapters of the book with members of the community is
interested. Contact me privately. But keep in mind the publisher give me only 10 free copies
so I cannot promise too many printed free copies :) :) :)
    PS: the Animal!  You know each O'Reilly book has an animal in the cover. After a lot of
thinking, I proposed an animal not yet used but I think it fits a lot OpenWhisk: the Pagurus
( Do you like the idea?
      Michele Sciabarra

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