Views

Location

The view files are located in the app/views directory.

Rendering

Eucalypt looks for view files relative to the app/views directory by default (though you can change this in the core application file).

Views directly inside directory

If your views folder structure is like the following:

views
├── partials
├── layouts
├── index.erb
└── 404.erb

Then you can render the pages index.erb and 404.erb in the following way:

app/controllers/main_controller.rb
class MainController < ApplicationController
  helpers MainHelper if defined? MainHelper
  
  get '/' do
    erb :index
  end
  
  error Sinatra::NotFound do
    erb :"404"
  end 
end

Views inside sub-directories

If your views folder structure is like the following (with some views located within sub-directories):

views
├── partials
├── layouts
├── pages
│   ├── index.erb
│   └── about.erb
└── 404.erb

Then you can render the pages index.erb and 404.erb in the following way (note the specification of the full path relative to app/views for rendering the index page):

app/controllers/main_controller.rb
class MainController < ApplicationController
  helpers MainHelper if defined? MainHelper
  
  get '/' do
    erb :"pages/index"
  end
  
  error Sinatra::NotFound do
    erb :"404"
  end 
end