Javaru

Javaru

Kotlin Coroutine Confidence: Book & source code do not match (pg 180)

On page 180 it says:

If you’re a fan of fluffy felines, you’ll be starting here.
pets/v1/src/main/kotlin/com/example/pets/PetService.kt
const val url = "https://api.thecatapi.com/v1/"
Or, if you’re all about those cuddly canine companions, just swap that line
for this one.
pets/v1/src/main/kotlin/com/example/pets/PetService.kt
const val url = "https://api.thedogapi.com/v1/"

However, the source code has two objects:

object Cats {
  const val url = "https://api.thecatapi.com/v1/"
}

object Dogs {
  const val url = "https://api.thedogapi.com/v1/"
}

with the URL that is used being decided by the import in the file:

import com.example.pets.Dogs.url

So you’ll likely want to update the text on pg 180 to indicate you make the change by changing the import.

p.s. Cats are OK, but Dogs Rule! :dog_face:

book-kotlin-coroutine-confidence version B3

Marked As Solved

sam-cooper

sam-cooper

Author of Kotlin Coroutine Confidence

Thanks, that’s useful feedback. As you probably guessed, using the two object declarations was a convenient way to include both URLs in the same source file without having a name clash. But I agree that it’s a little confusing, since it means the code in the downloaded source file doesn’t exactly match what I’m describing in the book. I’ll see what I can do to improve that. Adding a note in the text, as you suggested, sounds like a simple solution.

Where Next?

Popular Pragmatic Bookshelf topics Top

johnp
Running the examples in chapter 5 c under pytest 5.4.1 causes an AttributeError: ‘module’ object has no attribute ‘config’. In particula...
New
GilWright
Working through the steps (checking that the Info,plist matches exactly), run the demo game and what appears is grey but does not fill th...
New
Mmm
Hi, build fails on: bracket-lib = “~0.8.1” when running on Mac Mini M1 Rust version 1.5.0: Compiling winit v0.22.2 error[E0308]: mi...
New
raul
Page 28: It implements io.ReaderAt on the store type. Sorry if it’s a dumb question but was the io.ReaderAt supposed to be io.ReadAt? ...
New
patoncrispy
I’m new to Rust and am using this book to learn more as well as to feed my interest in game dev. I’ve just finished the flappy dragon exa...
New
digitalbias
Title: Build a Weather Station with Elixir and Nerves: Problem connecting to Postgres with Grafana on (page 64) If you follow the defau...
New
taguniversalmachine
Hi, I am getting an error I cannot figure out on my test. I have what I think is the exact code from the book, other than I changed “us...
New
s2k
Hi all, currently I wonder how the Tailwind colours work (or don’t work). For example, in app/views/layouts/application.html.erb I have...
New
davetron5000
Hello faithful readers! If you have tried to follow along in the book, you are asked to start up the dev environment via dx/build and ar...
New
dachristenson
@mfazio23 Android Studio will not accept anything I do when trying to use the Transformations class, as described on pp. 140-141. Googl...
New

Other popular topics Top

PragmaticBookshelf
Stop developing web apps with yesterday’s tools. Today, developers are increasingly adopting Clojure as a web-development platform. See f...
New
PragmaticBookshelf
Machine learning can be intimidating, with its reliance on math and algorithms that most programmers don't encounter in their regular wor...
New
PragmaticBookshelf
Learn from the award-winning programming series that inspired the Elixir language, and go on a step-by-step journey through the most impo...
New
Exadra37
I am asking for any distro that only has the bare-bones to be able to get a shell in the server and then just install the packages as we ...
New
New
husaindevelop
Inside our android webview app, we are trying to paste the copied content from another app eg (notes) using navigator.clipboard.readtext ...
New
hilfordjames
There appears to have been an update that has changed the terminology for what has previously been known as the Taskbar Overflow - this h...
New
CommunityNews
A Brief Review of the Minisforum V3 AMD Tablet. Update: I have created an awesome-minisforum-v3 GitHub repository to list information fo...
New
sir.laksmana_wenk
I’m able to do the “artistic” part of game-development; character designing/modeling, music, environment modeling, etc. However, I don’t...
New
NewsBot
Node.js v22.14.0 has been released. Link: Release 2025-02-11, Version 22.14.0 'Jod' (LTS), @aduh95 · nodejs/node · GitHub
New

Sub Categories: