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The latest version of the book is P1.0, released 5 months ago. If you've bought a PDF of the book and would like to update it to this version (for free), visit your home page.

By default this page displays the errata for the latest version of the book. If you have a previous version, select it here:

If you've found a new error, please submit it.

  • Typo
  • Tech. error
  • Suggestion
  • Maybe next edition
  • Not a problem
  • Reported in: P1.0 (09-Aug-18)
PDF page: 30
Paper page: 16
== Compilation error in file lib/plate_slate_web/schema.ex == ** (Absinthe.Schema.Error) Invalid schema: Elixir.PlateSlateWeb.Schema:0: The root que...more...
  • Reported in: P1.0 (09-Aug-18)
PDF page: 32
Paper page: 18
At the first command in the book (feel really annoyed): Absinthe.Schema.lookup_type(PlateSlateWeb.Schema, "MenuItem") == Compilation error in file ...more...
  • Reported in: P1.0 (21-Apr-18)
PDF page: 42
In the code snippet, 03-chp.userinput/4-ordering/lib/plate_slate/menu/menu.ex, the argument to '^order' should not be ':name'. Probably it is 'order'....more...
  • Reported in: P1.0 (03-Aug-18)
PDF page: 125
Text suggests that will be used to test a mutation, but the code pushes the mutation over the socket. Text: The next thing we do is ru...more...
  • Reported in: P1.0 (26-Apr-18)
Paper page: 142
The second example on this page is meant to be refering to `lib/plate_slate/ordering/order.ex` where the :customer_id is added to the cast list, howev...more...
  • Reported in: P1.0 (24-Jul-18)
Paper page: 177

"which will import from the Absinthe.Resolution.Helpers module" >> "which we'll import ..."--Sean Mackesey

  • Reported in: P1.0 (24-Jul-18)
Paper page: 179
"The first makes sure we can hook into individual fields when they need to use Dataloader" This sentence references Dataloader before it's been int...more...
  • Reported in: P1.0 (24-Jul-18)
PDF page: 238
"We’ll cover two of them: Apollo Client and Relay. At the current time, there are two major client-side JavaScript frameworks that developers use t...more...
  • Reported in: P1.0 (29-Apr-18)
Paper page: 245
The example command of `get-graphql-schema ...localhost:4000/graphql > ./schema.graphql` at the very bottom of this page uses an incorrect URL. The UR...more...
  • Reported in: P1.0 (29-Apr-18)
Paper page: 247
Cannot compile the graphql schema with relay-compiler as described on this page. Even the book source code fails with same error I'm getting: Writi...more...