Add ActiveModelSerializers dependency

Gemfile

@@ -34,6 +34,8 @@ gem 'devise_token_auth'
 
 gem 'rack-cors'
 
+gem 'active_model_serializers'
+
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
   gem 'byebug', platforms: %i[mri mingw x64_mingw]

Gemfile.lock

@@ -24,6 +24,11 @@ GEM
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
+    active_model_serializers (0.10.8)
+      actionpack (>= 4.1, < 6)
+      activemodel (>= 4.1, < 6)
+      case_transform (>= 0.2)
+      jsonapi-renderer (>= 0.1.1.beta1, < 0.3)
     activejob (5.2.1)
       activesupport (= 5.2.1)
       globalid (>= 0.3.6)
@@ -49,6 +54,8 @@ GEM
       msgpack (~> 1.0)
     builder (3.2.3)
     byebug (10.0.2)
+    case_transform (0.2)
+      activesupport
     coderay (1.1.2)
     concurrent-ruby (1.1.3)
     coveralls (0.7.1)
@@ -90,6 +97,7 @@ GEM
       concurrent-ruby (~> 1.0)
     jaro_winkler (1.5.1)
     json (2.1.0)
+    jsonapi-renderer (0.2.0)
     kramdown (1.17.0)
     listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -246,6 +254,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  active_model_serializers
   bootsnap (>= 1.1.0)
   byebug
   coveralls

config/initializers/active_model_serializers.rb

@@ -0,0 +1,3 @@
+# frozen_string_literal: true
+
+ActiveModelSerializers.config.adapter = :json_api