Class: Ruflet::Rails::Protocol::WebAppEndpoint

Inherits:
Object
  • Object
show all
Defined in:
lib/ruflet/rails/protocol/web_app_endpoint.rb

Overview

Rack endpoint that serves the pre-built Flutter web app’s index.html.

The HTML is read from build_dir and returned as-is — no mutation. The backend URL is baked into the build at compile time via:

rake ruflet:build[web]   # reads backend_url from ruflet.yaml

which passes –dart-define=RUFLET_URL=<backend_url> to flutter build. The Flutter client reads it via String.fromEnvironment(‘RUFLET_URL’).

Static assets (JS, WASM, fonts) in the build dir are served by Rails’ ActionDispatch::Static as normal.

Usage in routes.rb:

match "/ws",       to: Ruflet::Rails.app(Rails.root.join("app/views/mobile/main.rb")), via: :all
get   "/showcase", to: Ruflet::Rails.web(build: Rails.root.join("public/showcase"))

Instance Method Summary collapse

Constructor Details

#initialize(build_dir:) ⇒ WebAppEndpoint

Returns a new instance of WebAppEndpoint.



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# File 'lib/ruflet/rails/protocol/web_app_endpoint.rb', line 25

def initialize(build_dir:)
  @index_path = File.join(build_dir.to_s, "index.html")
end

Instance Method Details

#call(_env) ⇒ Object 



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# File 'lib/ruflet/rails/protocol/web_app_endpoint.rb', line 29

def call(_env)
  return not_found unless File.file?(@index_path)

  html = File.read(@index_path)
  [200, { "content-type" => "text/html; charset=utf-8", "content-length" => html.bytesize.to_s }, [html]]
end