New Sinatra Project
We’ll create Sinatra project from scratch.
mkdir sinatra
cd sinatra
Let’s create a simple Sinatra app.
app.rb
require "sinatra/base"
require "jets-sinatra"
class App < Sinatra::Base
get "/" do
text = "hello from sinatra"
puts "#{Time.now}: #{text}"
text
end
end
Let’s create the Gemfile for dependencies.
Gemfile
source "https://rubygems.org"
gem "jets-sinatra"
gem "jets", ">= 6.0"
gem "puma"
gem "sinatra"
We’ll also create a config.ru so we can test locally rack-based puma server.
config.ru
require "bundler/setup"
require_relative "app"
run App
We now have a simple Sinatra app.
Bundle
Run bundler to install the Gemfile dependencies
bundle
Next, we’ll do some local testing.