VAK

Real-Time Phoenix: only the first 3 responses are displayed on the console (p.101)

Here is a scenario of cyclic sending messages and receiving responses via slowStatsChannel.
The transport accepts all 5 responses, but only the first 3 responses that meet the 10s interval are displayed on the console, as seen in DevTools.
My understanding is that a packet transaction has a lifetime, after which the packets are accepted but are not passed to the processing script. This is a tricky disconcerting point for those who are new to real-time network programming.

1 comment

/book-real-time-phoenix #suggestion

0 445 1

2023-01-05 15:06:11 UTC

First Post!

sb8244

Author of From Ruby to Elixir and Real-Time Phoenix

Just to clarify, do you mean this lifetime is implemented in Phoenix JS lib, or somewhere else?

The packets transmitted over the channel’s WebSocket are not delayed at all. It’s the request/response lifecycle that’s delayed inside of the Channel’s logic (via Process.sleep). So, when a message is sent, it’s going to be sent as fast as possible from client → server and server → client.

WebSocket itself does not have the concept of request/response lifecycle, so that’s all implemented by Phoenix’s libraries.

Post #2

Where Next?

View thread on forum

View Real Time Phoenix's book portal

Post errata for this book

Post a suggestion for this book

Post a question about this book

Post a review about this book

Home PragProg Customers

/book-real-time-phoenix #suggestion

0 445 1

Last post

Popular Pragmatic Bookshelf topics

PragProg Customers

Distributed Services With Go - Ch 3 index errors on Config

In Chapter 3, the source for index introduces Config on page 31, followed by more code including tests; Config isn’t introduced until pag...

#pragprog #errata /book-distributed-services-with-go

8 1316 3

2021-04-08 12:48:40 UTC

New

PragProg Customers

Web Development with Clojure, Third Edition: Issue adding Shadow CLJS

Title: Web Development with Clojure, Third Edition, pg 116 Hi - I just started chapter 5 and I am stuck on page 116 while trying to star...

#question /book-web-development-with-clojure-third-edition

4 1199 4

2021-01-10 05:30:17 UTC

New

PragProg Customers

Docker for Rails Developers: Notes for Rails 6.1, Ruby 2.7.2

I thought that there might be interest in using the book with Rails 6.1 and Ruby 2.7.2. I’ll note what I needed to do differently here. ...

/book-docker-for-rails-developers

9 1177 1

2021-01-03 20:41:43 UTC

New

PragProg Customers

Programming Phoenix LiveView: Typo

Hi! I know not the intentions behind this narrative when called, on page XI: mount() |> handle_event() |> render() but the correc...

#errata /book-programming-phoenix-liveview

3 1307 17

2021-03-11 16:34:20 UTC

New

PragProg Customers

Web Development with Clojure, Third Edition (vB17.0): create table syntax invalid

Title: Web Development with Clojure, Third Edition, vB17.0 (p9) The create table guestbook syntax suggested doesn’t seem to be accepted ...

#errata /book-web-development-with-clojure-third-edition

0 1835 1

2021-08-13 23:56:52 UTC

New

PragProg Customers

Kotlin and Android Development featuring Jetpack: android:tint vs app:tint (chapter 7, p186)

I found an issue in Chapter 7 regarding android:backgroundTint vs app:backgroundTint. How to replicate: load chapter-7 from zipfile i...

#errata /book-kotlin-and-android-development-featuring-jetpack

0 3566 3

2022-04-26 09:10:52 UTC

New

PragProg Customers

Python Testing with pytest, Second Edition: InterpreterNotFound error when running tox (page 150)

When running tox for the first time, I got the following error: ERROR: InterpreterNotFound: python3.10 I realised that I was running ...

#errata /book-python-testing-with-pytest-second-edition

0 1306 1

2021-12-10 05:06:56 UTC

New

PragProg Customers

Docker for Rails Developers - 'docker-machine' command deprecated (page 156)

Docker-Machine became part of the Docker Toolbox, which was deprecated in 2020, long after Docker Desktop supported Docker Engine nativel...

/book-docker-for-rails-developers #suggestion

0 896 0

2023-03-06 18:01:33 UTC

New

PragProg Customers

Programming Phoenix LiveView: PentoWeb.LayoutView errata (56)

root_layout: {PentoWeb.LayoutView, :root}, This results in the following following error: no “root” html template defined for PentoWeb...

#errata /book-programming-phoenix-liveview

8 1094 4

2023-10-22 17:25:26 UTC

New

PragProg Customers

Kotlin and Android Development featuring Jetpack: Transformations class doesn't seem to exist anymore (pp. 140-141

@mfazio23 Android Studio will not accept anything I do when trying to use the Transformations class, as described on pp. 140-141. Googl...

#errata /book-kotlin-and-android-development-featuring-jetpack

0 2155 5

2023-10-01 15:02:47 UTC

New

Other popular topics

General Dev>Learning Resources

Forge Your Future with Open Source

Free and open source software is the default choice for the technologies that run our world, and it’s built and maintained by people like...

pragprog.com

#pragprog #published-book /book-forge-your-future-with-open-source

3 5654 0

2020-04-21 18:37:36 UTC

New

General Dev>Learning Resources

Seven More Languages in Seven Weeks

Learn from the award-winning programming series that inspired the Elixir language, and go on a step-by-step journey through the most impo...

pragprog.com

#pragprog /elixir /julia /lua #published-book #factor /elm #minikanren /idris /book-seven-more-languages-in-seven-weeks

4 5862 0

2020-04-29 21:59:54 UTC

New

Science/Tech>Health & Diet

How do you keep fit and healthy?

@AstonJ prompted me to open this topic after I mentioned in the lockdown thread how I started to do a lot more for my fitness. https://f...

#fitness #heath

193 4981 82

2023-01-23 06:00:46 UTC

New

Game Dev>Learning Resources

Apple Game Frameworks and Technologies

Design and develop sophisticated 2D games that are as much fun to make as they are to play. From particle effects and pathfinding to soci...

pragprog.com

#pragprog #ios #game-dev #macos /swift #published-book #apple /book-apple-game-frameworks-and-technologies

30 7995 10

2021-04-22 16:51:02 UTC

New

General Dev>Code Editors

SpaceVim vs SpaceMacs

SpaceVim seems to be gaining in features and popularity and I just wondered how it compares with SpaceMacs in 2020 - anyone have any thou...

/vim #spacevim #spacemacs /emacs #code-editors

30 4336 14

2020-08-27 17:53:29 UTC

New

General Dev>Dev Chat

Roc Language - a new purely functional programming language built for speed and ergonomics

Hi folks, I don’t know if I saw this here but, here’s a new programming language, called Roc Reminds me a bit of Elm and thus Haskell. ...

#programminguages #functional-programming

49 5164 14

2021-11-10 20:03:09 UTC

New

Science/Tech>Health & Diet

David Sinclair's new Lifespan podcast

We’ve talked about his book briefly here but it is quickly becoming obsolete - so he’s decided to create a series of 7 podcasts, the firs...

#health #podcasts #bio-hackers #david-sinclair

87 6790 49

2022-04-12 16:27:36 UTC

New

AI>In The News

How to fix the eyes in AI-generated images

aidemos.info

0 4508 0

2022-09-10 13:54:33 UTC

New

General Dev>In The News

Review of Linux on Minisforum V3 AMD Ryzen Tablet

A Brief Review of the Minisforum V3 AMD Tablet. Update: I have created an awesome-minisforum-v3 GitHub repository to list information fo...

mudkip.me

#linux #review #amd

0 4635 0

2024-06-24 02:26:38 UTC

New

Game Dev>Chat

Hair Salon Games for Girls Fun

Hair Salon Games for Girls Fun Girls Hair Saloon game is mainly developed for kids. This game allows users to select virtual avatars to ...

#ios #android #unity #fun

2 3556 1

2025-02-27 10:48:33 UTC

New

Real-Time Phoenix: only the first 3 responses are displayed on the console (p.101)

VAK

Real-Time Phoenix: only the first 3 responses are displayed on the console (p.101)