neovim Ruby on Rails

Preparation

Please complete the following tasks:

mkdir hello-rails
cd hello-rails

# Optional
# You can keep the version of asdf.
asdf local ruby <your version>

bundle init
bundle config --local path vendor/bundle
vi GemFile

gem 'rails' # Uncomment

bundle install

bundle exec rails new . # say 'Y'

# Terminal 1
bundle exec rails s

# Terminal 2
curl 'http://localhost:3000'

C-c in Terminal 1.

# Add controller
bundle exec rails g controller hello
vi app/controllers/hello_controller.rb

def index
@hello = "Hello World"
render template: "hello/index"
end

# Add view
vi app/views/hello/index.html.erb

<h1><%= @hello %></h1>

# Add routing
vi config/routes.rb

get "hello", to: "hello#index"

# Terminal 1
bundle exec rails s

# Terminal 2
curl 'http://localhost:3000/hello'

C-c in Terminal 1.

nvim-dap-ruby rais Not Supported Yet.

The same as the following:

There are many settings: