abreujp
I’ve published a new article in my Elixir learning series on dev.to exploring error handling with tagged tuples - the {:ok, value} / {:error, reason} pattern that’s idiomatic to Elixir.
The article covers:
- Understanding the tagged tuple convention and when to use it
- Returning descriptive results from your functions
- Handling errors at the call site with
caseand pattern matching - Chaining operations cleanly with
withand theelseclause - The bang convention (
!) and its role in the ecosystem - Practical patterns: validation, form handling, and batch processing
With complete working examples you can copy into IEx, you’ll learn how to treat errors as values and write code that handles failure paths explicitly.
Check it out:
Trending in Blog Posts
A deploy killed my OTP processes but not the containers running my AI agents. That mismatch kept a kanban card “executing” for eighteen h...
New
My first real blog post is up! Got five minutes? Come break some stuff. I put five demos in it, and they’re meant to be played with. Kill...
New
I run a kanban of AI coding agents, and one afternoon the board showed three tasks running while the profile page on the same screen said...
New
I wrote a post on how to implement a feature flag system and A/B testing in an Elixir app with no need for third-party services or librar...
New
Following up on Making `dns_erlang` fast: binary tricks for the BEAM, there’s our second post in our series on making erldns, an authorit...
New
A small quality-of-life improvement to my blog that makes it easier to keep technical posts up to date with a revision history.
https://...
New
Wrote a post about how I set up HTML email templates in Phoenix using the template renderer with Gettext and verified routes, CSS inlinin...
New
Other Trending Topics
Hey there,
I haven’t seen a list of useful Elixir specific skills for the popular AI tools yet so I’m starting one here with my first.
...
New
Hi everyone :waving_hand:
I wanted to share something I’ve been building — NowBlind, a random chat app designed to help people discover ...
New
I fully migrated to my own harness from Anthropic/Gemini and I think it’s time to share it. Welcome DSH, the DeepSeek Harness, fully writ...
New
Hey. Is there anyone here who creates agents in their apps? Not talking about using agents, but creating them. I’m finding it pretty diff...
New
(I just needed to vent somewhere and LinkedIn is full of hope, or hype, I’m not sure which exactly)
AI dream has many faces, but general...
New
Localize is the next generation localisation library for Elixir. Think of it as ex_cldr version 3.0. The first version will be released ...
New
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #library
- #deployment
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #elixirconf
- #channels
- #exunit
- #code-sync
- #discussion
- #podcasts
- #javascript
- #onsite
- #dialyzer
- #docker
- #authentication
- #ai
- #umbrella
- #elixirconf-us
- #full-time-contract
- #podcasts-by-brainlid
- #blog-post
- #ecto-query
- #elixir-ls
- #phoenix_html
- #iex
- #graphql
- #genstage
- #websockets
- #supervisor
- #advent-of-code
- #distillery
- #elixirconf-eu
- #processes
- #security
- #api
- #forms
- #performance









