Gemfile

@@ -69,3 +69,5 @@ gem 'acts-as-taggable-on'
 
 gem "rubytree"
 gem 'react-rails'
+gem 'rack-cors'
+gem 'jsonapi-rails'

Gemfile.lock

@@ -122,6 +122,17 @@ GEM
       actionview (>= 5.0.0)
       activesupport (>= 5.0.0)
     json (2.7.2)
+    jsonapi-deserializable (0.2.0)
+    jsonapi-parser (0.1.1)
+    jsonapi-rails (0.4.1)
+      jsonapi-parser (~> 0.1.0)
+      jsonapi-rb (~> 0.5.0)
+    jsonapi-rb (0.5.0)
+      jsonapi-deserializable (~> 0.2.0)
+      jsonapi-serializable (~> 0.3.0)
+    jsonapi-renderer (0.2.2)
+    jsonapi-serializable (0.3.1)
+      jsonapi-renderer (~> 0.2.0)
     loofah (2.22.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -170,6 +181,8 @@ GEM
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (3.1.7)
+    rack-cors (2.0.2)
+      rack (>= 2.0.0)
     rack-session (2.0.0)
       rack (>= 3.0.0)
     rack-test (2.1.0)
@@ -286,10 +299,12 @@ DEPENDENCIES
   faker
   importmap-rails
   jbuilder
+  jsonapi-rails
   money
   pg (~> 1.1)
   pry
   puma (>= 5.0)
+  rack-cors
   rails (~> 7.1.3, >= 7.1.3.2)
   react-rails
   redis (>= 4.0.1)

app/controllers/guests_controller.rb

@@ -9,6 +9,11 @@ class GuestsController < ApplicationController
                    .left_outer_joins(:affinity_groups)
                    .order('tags.name' => :asc)
                    .includes(:affinity_groups, :unbreakable_bonds)
+
+                   respond_to do |format|
+                      format.html
+                      format.json { render jsonapi: @guests }
+                   end
   end
 
   # GET /guests/1 or /guests/1.json

app/serializers/serializable_guest.rb

@@ -0,0 +1,9 @@
+class SerializableGuest < JSONAPI::Serializable::Resource
+  type 'guest'
+
+  attributes :id, :email
+
+  attribute :name do
+    "#{@object.first_name} #{@object.last_name}"
+  end
+end

config/initializers/cors.rb

@@ -0,0 +1,8 @@
+# config/initializers/cors.rb
+
+Rails.application.config.middleware.insert_before 0, Rack::Cors do
+    allow do
+      origins '*'
+      resource '*', headers: :any, methods: [:get, :post, :patch, :put, :delete]
+    end
+  end