Tag: elixir

All the articles with the tag "elixir".

• Elixir: map casting to structs (with checks at compile time!)

  10 Jun, 2024

  Validate map keys against a struct at compile time with a small macro, instead of discovering typos at runtime after deployment.

  • elixir
  • metaprogramming

• Adding stream_async() to Phoenix LiveView

  6 Jun, 2024

  Implement asynchronous assigns for LiveView streams and generate the boilerplate with a stream_async() macro.

  • elixir
  • phoenix
  • liveview

• How to report Postgres custom errors in Ecto Changeset

  10 Jan, 2022

  Capture custom Postgres errors as Ecto.Changeset errors instead of raising exceptions — no try/rescue, works out of the box with Phoenix.

  • elixir
  • ecto
  • postgres