phoenix

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Translated

Phoenix Elixir framework with LiveView for real-time. Use for Elixir apps.

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Sourceg1joshi/agent-skills
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NPX Install

npx skill4agent add g1joshi/agent-skills phoenix

Tags

Translated version includes tags in frontmatter
phoenix-frameworkelixir-developmentliveviewreal-time-appsecto-pubsub

SKILL.md Content

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Phoenix

Phoenix (Elixir) provides real-time scalability (millions of connections). v1.7 + LiveView allows building rich SPAs without writing JavaScript.

When to Use

  • Real-time: Chat apps, live dashboards (Channels).
  • High Concurrency: Leveraging the BEAM VM (Erlang).
  • Low JS: LiveView handles the UI state on the server.

Core Concepts

LiveView

Server-rendered HTML that updates over WebSockets. "The server is the state source".

Ecto

The database wrapper. Using 
Changeset
for validation.

PubSub

Built-in, distributed publish-subscribe system.

Best Practices (2025)

Do:
  • Use Verified Routes: 
    ~p"/users/#{@user}"
    ensures compile-time link safety.
  • Use Tailwind: Default in 1.7.
  • Use Function Components: HEEx templates with declarative assigns.
Don't:
  • Don't use SPA unless needed: LiveView covers 95% of use cases.

References