Better Control Flow Using The "with" Macro - DockYard
Since Elixir 1.2, Elixir has had the with macro to assist with more expressive control flow. Instead of deeply nested case and if/else blocks, you can have one single with block to express the same logic but in a more elegant and readable way. I’ll explore how you can utilize with to improve your code. with Basics with works by taking a list of clauses to be matched in order. If all clauses match,
What efficient pattern matching looks like at the bytecode level - DockYard
The labels that are jumped to from the select_val match then are checking that the rest of the string matches. The select_val is being generated in label(28)’s block because there is a group of clauses for render_template generated in Phoenix.Template.__before_compile__ My theory is that this is how BEAM makes pattern matching efficient in general: it finds prefixes that can be matched against wit
Elixir Deployment Tools Update - February 2018 - DockYard
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What's new in Phoenix development - February 2018 - DockYard
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What makes Phoenix Presence special, and a sneak peek - DockYard
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Building An Image Upload API With Phoenix - DockYard
For many API applications, there comes a time when the application needs to save images uploaded to the server either locally or on a CDN. Luckily for us, Elixir and Phoenix provide the tools we need to build a simple image upload API. The Simple API Let’s define exactly how this API is supposed to work: accept a request containing a base64 encoded image as a field preserve the image extension by
5 Elixir tricks you should know - DockYard
alias __MODULE__ This one looks mysterious at first, but once we break it down, it’s very straightforward. alias allows you to define aliases for the module name, for example: alias Foo.Bar will set up an alias for module Foo.Bar, and you can reference that module with just Bar. __MODULE__ is a compilation environment macros which is the current module name as an atom. Now you know alias __MODULE_
Elixir Best Practices - Deeply Nested Maps - DockYard
When writing Elixir apps you’ll typically find yourself building up state in a map. Typically these maps contain deep nesting. Updating anything deeply nested means you have to write something like: my_map = %{ foo: %{ bar: %{ baz: "my value" } } } new_bar_map = my_map |> Map.get(:foo) |> Map.get(:bar) |> Map.put(:baz, "new value") new_foo_map = my_map |> Map.get(:foo) |> Map.put(:bar, new_bar_map
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All For Reliability: Reflections on the Erlang Thesis - DockYard
You still need to care about locks with transactions - DockYard
All Systems Go: Creating your own startup checks with Nerves - DockYard
TIL: Elixir maps have built in syntax for updating - DockYard
IT-portal § Articles and News from the IT field
Macro Madness: How to use `use` well - DockYard
How to Add Concurrent, Transactional End-To-End Tests in a Phoenix-Powered Ember App - DockYard
The minimum knowledge you need to start Metaprogramming in Elixir - DockYard
Press Release - DockYard
Adding an Email Verification Flow With Phoenix - DockYard
Authorization Considerations For Phoenix Contexts - DockYard
How GenServer deals with errors in a concurrent environment - DockYard