Fixing `Ecto.StaleEntryError` with optimistic locking patterns
Race conditions in concurrent updates cause cryptic Ecto.StaleEntryError crashes in production. The error happens when multiple processes try to updat...
almirsarajcic
23 hours ago
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The config folder plays a pivotal role in any phoenix application. Its constituents are normally config.exs, dev.exs, prod.exs, runtime.exs and test.e...
Deankinyua
yesterday
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Hunting down flaky tests with `--repeat-until-failure`
Nothing destroys developer confidence like tests that randomly fail in CI. One day your build is green, the next it's red with the exact same code. Th...
almirsarajcic
7 days ago
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Infinite scroll is a listing-page design approach seen a lot on widely used apps such as TikTok and Instagram to keep the user engaged, loading additi...
Deankinyua
9 days ago
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Preventing atom exhaustion attacks with `String.to_existing_atom`
Using String.to_atom/1 on user input is a critical security vulnerability that can crash your entire BEAM VM through atom exhaustion. Here are two app...
almirsarajcic
14 days ago
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Ports in Elixir provide us an interface for communicating with external processes by sending and receiving messages. They make it easy to start and ma...
Deankinyua
19 days ago
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Phoenix gives you a very cool and easier way to fine tune your routing and be able to effectively handle cases where, say a user has a typo in the url...
jrowah
21 days ago
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Replicate is a platform for running AI models without having to worry about setting up infrastructure. A more simple definition would be "The Cloud bu...
Deankinyua
27 days ago
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Using `@impl Phoenix.LiveView` instead of `@impl true` for clear callback contracts
Stop using @impl true in your Phoenix modules. The Elixir compiler provides much better safety and clarity when you specify the exact behaviour module...
almirsarajcic
29 days ago
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A sandbox is an isolated testing environment that enables users to run programs or open files without affecting the application, system or platform on...
Deankinyua
1 month ago
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Extracting repeated type specs to module-level `@type` declarations
Tired of Dialyzer warnings and repetitive type declarations? Clean up your specs by extracting repeated types to the module level. Your code becomes m...
almirsarajcic
1 month ago
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Ever wondered what's actually inside your GenServer's state when things go wrong? Instead of adding debug prints or crashing the process, you can peek...
almirsarajcic
1 month ago
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What do you understand by the term "Expensive Computations"? Theoretical computer science defines them as the ones taking the most memory and time to ...
Deankinyua
1 month ago
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