Thibaut Barrère
@thibaut_barrere
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891
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Data engineer, full-stack developer (Elixir, Ruby, Javascript...), dev-ops. Working on - Author
Champdolent (17), France
Joined August 2007
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Pinned Tweet
That moment when you trivially add structured LLM support right in the middle of your comfy, massively scalable web stack, without the need for another tech😘 (very grateful in particular to
@josevalim
@chris_mccord
@thmsmlr
)
#MyElixirStatus
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Under-documented feature of Jason (Elixir JSON encoder): if you already have a JSON-encoded object, and want to inject it into another object without double-encoding, Jason.Fragment is available for that scenario (in optimised fashion)
#MyElixirStatus
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If you have any interest in LLM and Elixir at all, this 25-minute talk will be time well spent!! Great approach to programmatically interact with an LLM from Elixir by
@thmsmlr
#MyElixirStatus
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TIL: Phoenix LiveView has a built-in "show me what's rendered" helper for tests, something quite useful to help write tests with forms, for instance. Here is a quick screen capture showing this.
#MyElixirStatus
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Great side-by-side comparison of simple ML constructs between Python and Elixir by
@zacksiri
#MyElixirStatus
- please RT for reach, we need more similar work!
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If you need quick load-testing with a nice default output (distribution chart etc), check out
@rakyll
's "hey" (). She also has nice "traveling as a DJ" tips btw!
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Prawn (Ruby PDF library) has issued a new release (the first one in 3 years)
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Did you know? You can use LibreOffice in headless mode for decently reliable conversions, fairly useful at times. Here an example of using this to convert a CSV file to a XLSX file, without any XLSX-specific library
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Pro-tip: one can use
@livebookdev
and the Ecto ERD (Entity-Relationship Diagram) package together, by generating
@mermaidjs_
content, to help document an application database model
#MyElixirStatus
- example at
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Did you know? The "Massachusetts Bay Transportation Authority" uses
@elixirlang
for a number of their services, including their website (), API, some realtime feed merge tools, and tooling (e.g. )
#MyElixirStatus
(via
@AntoineAugusti
)
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Upgrading a (properly maintained) 12-year-old RubyOnRails app to Rails 6.1 is <3. The Ruby ecosystem is in good shape from my maintenance PoV: changelogs on each gem, upgrade guides etc.
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The complete test suite of takes ~50 seconds to complete, with ~25 seconds for the main app. Fast enough although it could be improved. "Async" tests (easily activated in ExUnit ) definitely help!
#MyElixirStatus
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One feat. of
@elixirlang
that I really, really dig is that pattern matching can be leveraged to write clear / explicit & also "defensive" data munging code. Here the contract is clearly stated, like a mandatory pre-requisite, and "variables are assigned" on one go
#MyElixirStatus
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My 14-yo just shared a nice refactoring he is doing, removing code duplication by using data structures, all on its own. He went a long way since starting coding with scratch and “blocks”!
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asdf-erlang is being updated (for now only on MacOS) to install Erlang from precompiled binaries (much faster) instead of source. Great work by Seivan
#MyElixirStatus
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Personal news: I've started a new gig, working at improving and maintaining the "French national access point to transport data" - expect more tweets about Elixir, Rust, open-data & realtime in the coming months (in addition to my regular Ruby tweets)
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I have used Ruby for 17 years and must check out the doc for HEREDOC almost every time. AmA
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Here is an "Elixir in production" case study focusing on transportation open data in France ; thanks to
@josevalim
for interviewing our team at
@transportdatafr
!
#MyElixirStatus
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Happy to officially release Kiba Pro v2 (commercial extensions to Kiba ETL, a popular Ruby framework to build ETL & data pipelines). This is my effort to build a sustainable "data pipeline" solution for Ruby (RT will be helpful!)
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Investigating on a problematic JSON API response, I am switching from jq to Elixir (thanks again, to "Mix.install/2" which allows you to specify & install dependencies in a one-off script) and it is a big comfort improvement for me at least
#MyElixirStatus
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Don't forget (or did you know?): you can use Postgres generate_series to generate series of e.g. dates, useful to build reporting dashboards of all sorts via joins!
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Didn't wake up with the will to write this, & it took me a good hour to articulate my thoughts correctly and as sincerely as I could, but here you go: thoughts on Ruby/Elixir scalability, and why this is a bit of a distraction ultimately
#MyElixirStatus
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Wow! => a place to share and find
@livebookdev
notebooks (Elixir) - thanks to
@ac_alejos
for sharing &
@AppSignal
for sponsoring this, this will have a great impact!
#MyElixirStatus
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Careful everyone - the "rest-client" gem has been compromised (please RT)
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For a Phoenix app, I've implemented in-memory JSON caching in various spots (via plug but also via controller). I'm considering writing an article if this is of interest to you. Add a like or reply, I'm trying to gauge the interest. Thanks!
#MyElixirStatus
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TIL: how to play a MP3, streamed from HTTP, thanks to
@ElixirMembrane
(works in
@livebookdev
as long as you have PortAudio installed)
#MyElixirStatus
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Elixir is giving me "wings" with nice and crazy ideas that are normally not implementable by a "single folk in his garage" ^_^ (same feeling with Ruby in 2004, but another order of magnitude I must say today!)
#MyElixirStatus
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Pretty cool to see the broadening of the Elixir ecosystem (via
@elixirstatus
) includes more security tooling via GitHub & more
#MyElixirStatus
&
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I am infinitely grateful 🙏 to my parents because 40 years ago, my dad brought this home, and my parents let me experiment and play with it as much as I wanted. This is a big reason why you’re reading my tweets today ^_^
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Memory usage of http.rb, Net::HTTP, RestClient, and HTTParty when uploading and downloading 10 MB of data (via )
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now runs on Elixir 1.15/OTP 24. Again, the maintenance/upgrade story is "quite very good"! We were on Elixir 1.8 three years ago (). We use a nice Elixir script to ease upgrades reviews ()
#MyElixirStatus
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One way to detect the most consuming method of an Elixir script - using "eprof"
#MyElixirStatus
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If you do Ruby, make sure to follow
@ioquatix
. His work on async is IMO one of the most forward-pushing works on Ruby at the moment. Really appreciative that he works at reintegrating this "upstream" whenever possible (hence avoiding the EventMachine-parallel-universe syndrome)
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phoenix_now by
@wojtekmach
#MyElixirStatus
-> something you might like if you need to experiment with small Phoenix tests quickly! (I certainly do)
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Upgrading a 12-year old JRuby project (which has received recurring maintenance) from JDK 8 to 17. Not a single failure in the test suite ^_^. I like the stability of the JVM (and thanks to
@jruby
team too!)
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In the mean time in Large Corp: "ha, we were about to create a ticket to evaluate a migration to Webpacker"
RETIREMENT: Webpacker has served the Rails community for over five years as a bridge to compiled and bundled JavaScript. This bridge is no longer needed for most people in most situations following the release of Rails 7.
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As I head over London by train, again enjoying "mix fetch" which downloads the documentation for all libraries in a project in a single operation
#myelixirstatus
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How to replace a string in a 480MB XML file on the fly, while streaming it (not fully in RAM) to a XML Sax parser
#MyElixirStatus
(original issue at )
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New article: how to implement disk caching for
@elixirlang
's Req HTTP client, thanks to its greatly extensible plugin architecture (h/t to
@wojtekmach
for this great library!)
#MyElixirStatus
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@livebookdev
delivers! Today I shipped (relatively quickly ; most of the time spent was learning Explorer API ) a Livebook which will save 1 hour of daily work for one of our team member. Pretty cool feeling :-)
#MyElixirStatus
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I would love to read an up-to-date, refreshed, balanced comparison (no fanboy/flamewar mode) between
@rails
8 / turbo / Hotwire () and
@elixirphoenix
LiveView (practical & conceptual). Anything fresh to share?
#rubyonrails
#myelixirstatus
Thank for your RT!
LiveView vs Hotwire - the difference by
@josevalim
"Although both are “HTML over the wire”, LiveView is stateful and Hotwire (as well as React Server Components) are stateless."
#myelixirstatus
#elixirlang
#erlang
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Cool stuff about
@elixirlang
1.16 (RC.0 now). This has been tweeted already but is cool as hell and worth sharing again. The docs include diagrams to explain e.g. GenServer, and this is a great to get a better grasp on the concepts! ^_^
#MyElixirStatus
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I am an avid Elixir proponent for practical reasons, but I also use Ruby. For me, the work by
@ioquatix
is one of the most impactful in the Ruby world at the moment. I hope 100% of it goes upstream ultimately.
I compared a "Hello World" Elixir/Cowboy vs Rack/Falcon. Honestly, I'm surprised it's as good as it is. It shows just how far Ruby+Async has come, and this is in comparison to a system that has dedicated it's entire existence to high throughput I/O and parallelism.
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First iteration of an Elixir-based dev-ops testing system (inspired by ServerSpec & InSpec, but not based on RSpec for better parallelism). Pretty happy with the result so far! It uses ExUnit assertions (but not the ExUnit runner)
#MyElixirStatus
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My experience with Phoenix LiveView today: very easy to use to implement a real-time dashboard (e.g. SQL queries that propagate counts back to the UI). I was able to implement, write unit tests & deploy within one day
#myelixirstatus
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I'm now sponsoring both projects via my company LoGeek, because I think IDE tooling is important for
@elixirlang
continuing adoption :-) Please consider doing the same!
Direct sponsoring urls:
-
-
#MyElixirStatus
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By using asdf/.tool-versions, one can follow the history of upgrades easily via git. We went from Elixir 1.8 -> 1.15 with very limited troubles thx to the **extremely comfortable** deprecation policy in
@elixirlang
#MyElixirStatus
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PIZZA MAKING MEGA-THREAD! During lockdown, I learned to create tastilicious home-baked pizzas, good enough that they taste better than most pizzerias I've been to! I've written down how I learned, if you want to learn it too:
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> As of v3.4.4, `geo_postgis` is being maintained by the
@felt
team. As a company building a geospatial product on Elixir, with a track record of [supporting open source software](), we're excited for the future of the project.
🥳 👏
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Client mgmt concerned about Ruby being too slow to handle 5,000 reports per day. Today's benchmark shows 500,000 per day without tuning ^_^
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I see a bright future where simple Elixir nodes replace mountains of legacy nodejs websockets listeners + ruby cron & event machine jobs.
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I could not find a flexible French conjugation training for my 7-yo, so I created a little terminal app (Conjugator) for this. This will save us many hours (^_^) like the previous maths training one (Indestructable). I'm entertaining the idea of creating a web-based version!
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A major difference which explains the better overall "usability" of an Ecto pool compared to other stacks (bangs for the bucks for a given N size of pool). More HTTP queries can occur safely in parallel for the same size of pool. Surprising to people coming from other stacks :-)
@MattStopa
@ryanflorence
Our DB layer does not checkout DB connections per request. But on every query: this leads to better load distribution and resource usage, especially when a request toggles between CPU and DB work, as most apps do! But this feature actually makes us perform worse on the benchmark!
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For musicians who code in Elixir, I'm happy to point out that I have a fork of ex-portmidi (library to deal with MIDI events) that is up-to-date without warnings on Elixir 1.12 & OTP 23
#MyElixirStatus
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IMO the
@elixirphoenix
& specifically LiveView "community" is starting to structure itself, with more people sharing patterns & problems, and this will ultimately lead I think to blueprints / posts / books, which is cool !
#MyElixirStatus
I've been working with Forms a lot recently and unfortunately have to report that
@elixirphoenix
could improve on that a bit. I have two suggestions:
Creating "custom" forms which don't map to a schema 1-to-1 is clunky. It's hard to change fields from two or more schemas in a
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Inspired by LiveView, I'm working on Kiba Pro component enabling turn-key live ETL (import/processing) jobs progress report in any Ruby app (rails/sinatra/roda), and any server (passenger/puma...). ERB templating, <10 lines of javascript, no websockets (message_bus), easy deploy.
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Elixir, MIDI & LiveView - here are the slides + demo video for the lightning talk I gave at
@CodeElixirIO
London 2019 last week
#myelixirstatus
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Very happy to be accepted as a speaker for RubyKaigi 2018! I'll be speaking about Ruby ETL, as you may have guessed ^_^
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TIL: "mix hex.outdated" shows your updatable Elixir dependencies. It's fairly fast, by the way!
#myelixirstatus
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WIP: adding Postgres-JSONB-backed instant search to
@transportdatafr
(to avoid very costly "paginated joins" and replace them with an "indexation payload"). Code at
#MyElixirStatus
- thanks
@elixirlang
Mix.install/2, really helpful for this spike!
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If your Phoenix app cannot start on port 5000 on a newly upgraded Mac, this could be because AirPlay Receiver is up and taking the port already
#MyElixirStatus
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Here is a Phoenix LiveView "almost-single-file" (Mix.install/2) app (a SVG LiveView clock, btw)
#MyElixirStatus
hat-tip to
@iteamon
for initial inspiration!
On the bad side I sprained my ankle. On the good side I have had extra time to hack on Elixir, with a single-file LiveView + esbuild app ^_^ (more on that later)
#MyElixirStatus
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Ecto Squash -> a Mix task intended to streamline migration squashing (It replaces several migrations with a SQL-based migration...) else
https://github.com/prosapient/ecto_squash
#MyElixirStatus
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I used disk-based caching a lot again recently (for HTTP-based data experimentations), so reposted on hacker news ()
#MyElixirStatus
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In Elixir, the FTP protocol is natively provided by the Erlang stdlib. Just make sure to convert Elixir strings to Erlang charlists (or become dumbfounded by weird :ehost errors)
#myelixirstatus
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10k concurrent players for a flight simulateur server, supported by a single developer learning the language, in 6 months, is the type of stuff you can tackle with Elixir :-)
Learn why
@XPlaneOfficial
chose Elixir to power their flight simulator multiplayer server and how they tackled it in our latest case:
#MyElixirStatus
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TIL:
@flydotio
supports Phoenix apps, but you can deploy "pure-Elixir" apps via Docker support too. 2 interesting articles at
#MyElixirStatus
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Having used Capistrano since its very beginning (when it had another name), and still deploying with it today on modern & well-maintained apps, I'm very thankful to everyone who contributed to it (including original author
@jamis
) . Thanks everyone!
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You want tests because it removes the stress from refactoring. Without refactoring, the code turns into stone and can't be bent to your will anymore.
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Hold me tight as I share a deep insight on HN:
“JavaScript churns more than Rails which churns more than Elixir/Phoenix.
I believe this is caused by “how sound the fundamentals are” (technical debt in the language itself and its stdlib).”
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After reading quite a few HN Elixir threads in the last months, I think (& I've always been quite in that posture) I'm geared toward an even more "Show, don't tell" approach when it comes to promoting Elixir. It feels more productive to me and will avoid knee-jerks reactions!
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Implementing a visual regression check on PDF for a continuous integration (fully automated). This is probably worth an article, would you be interested if I wrote it?
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@PragTob
@wojtekmach
Same here! I have spent a decent percentage of the last 20 years on the maintenance aspect of software (as expected since it is an important part of long lasting systems!) and I think Elixir has the best « total cost of ownership » I have experienced
By using asdf/.tool-versions, one can follow the history of upgrades easily via git. We went from Elixir 1.8 -> 1.15 with very limited troubles thx to the **extremely comfortable** deprecation policy in
@elixirlang
#MyElixirStatus
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I am fairly disappointed by the Mac M1, because I can't grill ribs on it like I used to do on my previous MBA. I want my money back.
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I already used LiveView in production in apps I wrote, _but_ it's the first time I take over maintenance of an Elixir app already coming with bits of LiveView in it. Everything is so clear to understand & simple thanks to the paradigm, I'm a bit baffled :-)
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What Elixir does for the "regular web app stack" in terms of simplification (less components / consolidated stack), also does to the ML ops stack ;-)
#MyElixirStatus
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Rails e-commerce perf. improvement is rapidly becoming my 2nd favorite consulting niche, after ETL. Going from secs to ms is addictive!
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When working with Elixir list comprehensions, you can filter the generated values via pattern matching. All non-matching patterns are ignored A very nice use of this is Plug get_req_header
#MyElixirStatus
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Using Postgres materialised views & ST_SnapToGrid to create "reasonably fast clusters" (per zoom level) of all the available GTFS stops in France (staging preview )
#MyElixirStatus
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Featured on HN with more than 700 points:
@DataPolars
, the efficient Rust-based « DataFrame » library used by
@elixirlang
Explorer project
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I started coding 35 years ago and I use a git GUI (GitHub Desktop) by choice ^_^
If you don’t know terminal commands don’t be discouraged. Using a GUI doesn’t mean you’re any less of a developer. However you get to the job done is completely valid!
#DevDiscuss
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I am thankful to whoever drew that in the first place (forwarded by my brother), as it will have countless uses.
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What is the best language to implement a personal (me-use only) commercial-grade live-looper in 2024 and why is it Elixir?😂
Man I'm so happy I intuitively picked this language years ago. The breadth of use cases one can cover with it today is staggering.
#MyElixirStatus
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A benefit of `Mix.install/2` is that you can add experimental scripts easily in the same repo as an app, and only later promote them to the main app runtime, when the time is right. This encourages experimentation. Here is an example
#MyElixirStatus
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I have successfully implemented a MacOS GitHub Action CI build, where the Erlang install gets cached. Might be worth a blog post :P
#MyElixirStatus
0
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I just deployed a
@jruby
application initially created 15 years ago, with all upgrades, including JDK 17 LTS (upgrading from JDK 8), to a staging server, and I'm quite emotional about it. It all just works (tm) so far!
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Updating my own "tech radar" if you're interested: favorite stack for a bunch of years to come -> Ruby & Elixir, Postgres, sometimes Redis, and loads of AWS tools. If in need of Javascript, Vue.js. Thanks for reading!
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Alternatives sadly never caught up but at least we tried
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@tlakomy
Lack of staging is a feature not a bug. You would never ship to production after such a test ^_^
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One developer on my remote Elixir team is using Windows. The provided Elixir installer allows to install every single recent version of it on Windows. Everything is working flawlessly
#myelixirstatus
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