- The Ruby programming language and the Ruby on Rails framework installed on your development machine
Step 1 — Setting Up a New Rails API Application
rails new graphql_fun --api --skip-test
Create Models
rails g model User email:string name:string
rails g model Post user:belongs_to title:string body:text
rails db:migrate
Now you can use to create demo data using gem faker. see the seed.rb
Step 2 — Setting Up GraphQL for Rails
In Gemfile add gem graphql and gem graphiql-rails
bundle install
To see available generators use rails generate
rails g graphql:install
Now update the routes.rb to mount the GraphiQL engine in the development environment
if Rails.env.development?
mount GraphiQL::Rails::Engine, at: "/graphiql", graphql_path: "graphql#execute"
end
Next, uncomment or add the require "sprockets/railtie" in config/application.rb
Now create a config directory at app/assets and create a manifest.js under config directory
Add the following code to the file which tells Rails to precompile the graphiql/rails/application.css and graphiql/rails/application.js files.
That's all.
Restart your rails server and visit localhost:3000/graphiql to view the GraphiQL query editor.