Server-to-client page context system.

Renders a JSON blob into a hidden input (#pa-page-context) that JS can read synchronously on page load — no API fetch needed. CSP-safe (no inline scripts with data).

How it works

1. The app registers context providers via config
2. The library's page_context/1 component renders the hidden input
3. JS reads it via getPageContext() / getContextValue(key)

Configuration

# config/config.exs
config :keen_pure_admin,
  page_context_providers: [
    &MyApp.PageContext.theme_manifests/1,
    &MyApp.PageContext.user_context/1
  ]

Each provider is a function that receives the assigns map and returns a map to merge into the context.

Provider Examples

defmodule MyApp.PageContext do
  def theme_manifests(_assigns) do
    %{"themeManifests" => load_manifests()}
  end

  def user_context(assigns) do
    user = assigns[:current_user]
    %{"user" => %{"id" => user.id, "locale" => user.locale}}
  end
end

Standard Keys