convert to a web application

Author: martinezcoder

Dockerfile

@@ -10,3 +10,4 @@ WORKDIR /app
 ADD ./ ./
 
 RUN bundle
+

Gemfile

@@ -4,3 +4,6 @@ gem 'sqlite3'
 gem 'pry-byebug'
 gem 'activerecord', '~> 6.0', require: 'active_record'
 gem 'activesupport', '~> 6.0', require: 'active_support'
+
+gem 'sinatra'
+

Gemfile.lock

@@ -18,15 +18,25 @@ GEM
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
     method_source (0.9.2)
-    minitest (5.12.0)
+    minitest (5.12.2)
+    mustermann (1.0.3)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     pry-byebug (3.7.0)
       byebug (~> 11.0)
       pry (~> 0.10)
+    rack (2.0.7)
+    rack-protection (2.0.7)
+      rack
+    sinatra (2.0.7)
+      mustermann (~> 1.0)
+      rack (~> 2.0)
+      rack-protection (= 2.0.7)
+      tilt (~> 2.0)
     sqlite3 (1.4.1)
     thread_safe (0.3.6)
+    tilt (2.0.10)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
     zeitwerk (2.1.10)
@@ -38,6 +48,7 @@ DEPENDENCIES
   activerecord (~> 6.0)
   activesupport (~> 6.0)
   pry-byebug
+  sinatra
   sqlite3
 
 BUNDLED WITH

README.md

@@ -1,8 +1,8 @@
-## Use ActiveRecord in plain ruby code
+## Plain ruby code application
 
-We usually have to create plain ruby code needing a database dependency. This code is an starting point for this.
+We usually have to create plain ruby code or microservices using a database dependency. This code is an starting point for this. The magic in this repo consists in including the power of Rake tasks and ActiveRecord library.
 
-It uses the power of Rails tasks and ActiveRecord library, using just what it is really needed.
+E.g., whether you need to create an API, you can start with the code in `bin/serve` where you will find a sinatra web endpoint responding the content of a database table.
 
 ### Instalation
 
@@ -24,6 +24,4 @@ Just create a migration file in 'db/migrate' folder, using numerical order at th
 
 ```sh
 docker-compose run web rake db:create db:migrate db:seed
-```
-
-###
+```

bin/serve

@@ -0,0 +1,13 @@
+#!/usr/bin/env ruby
+
+require 'sinatra'
+
+set :port, 8888
+
+require File.expand_path('../../lib/app', __FILE__) # require the application
+
+get '/' do
+  content_type :json
+  Pet.all.to_json
+end
+

docker-compose.yml

@@ -1,9 +1,11 @@
 version: '3.5'
 services:
   app:
-    command: bash
+    command: "bin/serve -o 0.0.0.0"
     build:
       context: ./
       dockerfile: Dockerfile
     volumes:
       - ./:/app
+    ports:
+      - "8888:8888"