The Little Ecto Cookbook (self-published) (free)


The Ecto recipes were originally written for the “What’s new in Ecto 2” ebook and then made open-source by Plataformatec. Since then, the community has joined our efforts and made many contributions. The end result is this ebook, curated by Plataformatec, which includes a foreword and an exclusive chapter written by José Valim, creator of Elixir.

The Plataformatec team brings an updated collection of recipes on how to best use different features of Ecto 3.1 and later. This free ebook is made of 12 chapters:

• Foreword by José Valim exclusive
• Ecto is not your ORM exclusive
• Schemaless queries
• Data mapping and validation
• Dynamic queries
• Multi tenancy with query prefixes
• Aggregates and subqueries
• Test factories
• Constraints and Upserts
• Polymorphic associations with many to many
• Composable transactions with Multi
• Replicas and dynamic repositories


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You could post your book here? =>

I’ve tried entering my email to get the PDF and nothing is showing up in my email or my spam. Can someone send me a link?

The “How-to’s” section is the cookbook, IIRC


I completed the form for this ebook as well and have not received it either. I have waited a few days and nothing shows up in my email, including the spam folder. What am I missing?

I’m not the person responsible for this, so can’t help much. :slight_smile:

You can try reaching them directly via mail:

Related links:

  1. Get in touch

looks like mine didn’t arrive either (although that was just a few minutes ago). Not really going to contact anyone at dashbit but…

if anyone has a Torrent that’d be very much helpful :wink:

I just tried with my gmail account and was able to get it almost immediately. Maybe they’ve fixed the issue?

Maybe it’s because of this? Not sure, I never had a problem with it …

Maybe, yes.

Tried few times still have my mailbox empty…

if anyone can share it, please send it to

Thanks in advance!

Not working for me either.

This link will be available for the next 24 hours:


The ebook form should be up an running again. Sorry for the trouble.


If we find typos in the book, is there any good place to submit those for correction?

If you need to correct any typos in the text, you can go here (from the intro of the ebook):