handson-create_a_rest_api_with_rails's Introduction

Commands

rails new <project_name> --api --database=mysql (optional -T for Rspec)
rails generate model User username:string password:string
rails generate model Fact user:references fact:string likes:integer
Go to config/database.yml, update database config
rails db:setup
rails db:migrate
rails g controller api/v1/Users
rails g controller api/v1/Facts
go to config/routes.rb, update routes into

Rails.application.routes.draw do
  namespace :api do
    namespace :v1 do
      resources :users do
        resources :facts
      end
      resources :facts
    end
  end
end

update both UsersController and FactsController
Enter console by rails c

$ oliver = User.create( username: 'Oliver', password: 'password' )

$fact_one = Fact.create( fact: 'Wiley Hardeman Post was the first pilot to fly solo around the world.', likes: 1, user_id: 1 )

$ fact_two = Fact.create( fact: 'The Symphony No1 in E flat major, K.16, was written by Wolfgang Amadeus Mozart at the age of 8.’ likes: 2, user_id: 1 )

$ exit

rails server | s
http://localhost:3000/api/v1/users
http://localhost:3000/api/v1/users/1/facts
http://localhost:3000/api/v1/facts

README

This README would normally document whatever steps are necessary to get the application up and running.

Things you may want to cover:

Ruby version
System dependencies
Configuration
Database creation
Database initialization
How to run the test suite
Services (job queues, cache servers, search engines, etc.)
Deployment instructions
...

Troubleshooting

If libssl error is presented, try brew reinstall [email protected] This suggestion also solved the issue with the same error Mac OSX, with Catalina 10.15.3, running mysql 8.0.19, using Rails 5.2 (for what its worth) and already had openssl 1.1.1d installed with Homebrew.

gem uninstall mysql2 brew upgrade openssl gem install mysql2 -- --with-opt-dir="$(brew --prefix openssl)"

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