Add ruby-graphql

.gitignore

@@ -17,3 +17,4 @@
 .byebug_history
 .idea/
 public/
+node_modules/

Gemfile

@@ -31,6 +31,9 @@ gem 'devise_token_auth'
 gem 'cancan'
 gem 'rolify'
 gem 'pry'
+gem 'graphql'
+gem 'graphiql-rails', group: :development
+gem 'graphql-batch'
 
 group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
@@ -48,6 +51,3 @@ group :development do
  gem 'spring'
  gem 'spring-watcher-listen', '~> 2.0.0'
 end
-
-# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
-gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

Gemfile.lock

@@ -65,6 +65,12 @@ GEM
  thor (~> 0.19.1)
  globalid (0.3.7)
  activesupport (>= 4.1.0)
+ graphiql-rails (1.4.1)
+ rails
+ graphql (1.6.3)
+ graphql-batch (0.3.3)
+ graphql (>= 0.8, < 2)
+ promise.rb (~> 0.7.2)
  i18n (0.8.1)
  jsonapi-resources (0.9.0)
  activerecord (>= 4.1)
@@ -88,6 +94,7 @@ GEM
  mini_portile2 (~> 2.1.0)
  orm_adapter (0.5.0)
  pg (0.20.0)
+ promise.rb (0.7.3)
  pry (0.10.4)
  coderay (~> 1.1.0)
  method_source (~> 0.8.1)
@@ -177,6 +184,9 @@ DEPENDENCIES
  factory_girl
  faker
  foreman
+ graphiql-rails
+ graphql
+ graphql-batch
  jsonapi-resources
  listen (~> 3.0.5)
  pg (~> 0.18)
@@ -188,7 +198,6 @@ DEPENDENCIES
  rspec-rails
  spring
  spring-watcher-listen (~> 2.0.0)
- tzinfo-data
 
 BUNDLED WITH
  1.14.6

README.md

@@ -28,3 +28,11 @@ Demo user: user1@example.com / Secret123
 ### Client
 
 Add list, edit and form components in `client/src/components/` based on one of existing.
+
+### [graphiql](http://localhost:3001/graphiql)
+
+ {
+ categories {
+ name
+ }
+ }

app/controllers/graphql_controller.rb

@@ -0,0 +1,32 @@
+class GraphqlController < ApplicationController
+ def execute
+ variables = ensure_hash(params[:variables])
+ query = params[:query]
+ context = {
+ # Query context goes here, for example:
+ # current_user: current_user,
+ }
+ result = RailsJsonApiServerSchema.execute(query, variables: variables, context: context)
+ render json: result
+ end
+
+ private
+
+ # Handle form data, JSON body, or a blank value
+ def ensure_hash(ambiguous_param)
+ case ambiguous_param
+ when String
+ if ambiguous_param.present?
+ ensure_hash(JSON.parse(ambiguous_param))
+ else
+ {}
+ end
+ when Hash, ActionController::Parameters
+ ambiguous_param
+ when nil
+ {}
+ else
+ raise ArgumentError, "Unexpected parameter: #{ambiguous_param}"
+ end
+ end
+end

app/graphql/rails_json_api_server_schema.rb

@@ -0,0 +1,6 @@
+RailsJsonApiServerSchema = GraphQL::Schema.define do
+ query(Types::QueryType)
+
+ # GraphQL::Batch setup:
+ use GraphQL::Batch
+end

app/graphql/types/category_type.rb

@@ -0,0 +1,6 @@
+Types::CategoryType = GraphQL::ObjectType.define do
+ name "Category"
+ field :id, types.Int
+ field :name, types.String
+ field :created_at, types.String
+end

app/graphql/types/query_type.rb

@@ -0,0 +1,20 @@
+Types::QueryType = GraphQL::ObjectType.define do
+ name "Query"
+ description "The query root of this schema"
+
+ field :category do
+ type Types::CategoryType
+ argument :id, !types.ID
+ description "Find a Category by ID"
+ resolve ->(obj, args, ctx) { Category.find(args["id"]) }
+ end
+
+ field :categories do
+ type types[Types::CategoryType]
+ argument :id, types[types.ID]
+ description "Find Categories"
+ resolve ->(obj, args, ctx) {
+ args["ids"] ? Category.where(id: args["ids"]) : Category.all
+ }
+ end
+end

config/application.rb

@@ -9,7 +9,7 @@
 require "action_mailer/railtie"
 require "action_view/railtie"
 require "action_cable/engine"
-# require "sprockets/railtie"
+require "sprockets/railtie"
 require "rails/test_unit/railtie"
 
 # Require the gems listed in Gemfile, including any gems

config/routes.rb

@@ -1,4 +1,9 @@
 Rails.application.routes.draw do
+ if Rails.env.development?
+ mount GraphiQL::Rails::Engine, at: "/graphiql", graphql_path: "/graphql"
+ end
+
+ post "/graphql", to: "graphql#execute"
  mount_devise_token_auth_for 'User', at: 'auth'
  jsonapi_resources :categories
  jsonapi_resources :comments