Add error handling for all controller actions

Author: Sebastian Wilgosz

Gemfile

@@ -25,6 +25,8 @@ gem 'puma', '~> 4.1'
 gem 'bootsnap', '>= 1.4.2', require: false
 gem 'jsom-pagination'
 gem 'jsonapi-serializer'
+gem 'jsonapi_errors_handler'
+
 # Use Rack CORS for handling Cross-Origin Resource Sharing (CORS), making cross-origin AJAX possible
 # gem 'rack-cors'
 

Gemfile.lock

@@ -108,6 +108,7 @@ GEM
       rack
     jsonapi-serializer (2.1.0)
       activesupport (>= 4.2)
+    jsonapi_errors_handler (0.4.0)
     listen (3.3.1)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
@@ -210,6 +211,7 @@ DEPENDENCIES
   factory_bot_rails
   jsom-pagination
   jsonapi-serializer
+  jsonapi_errors_handler
   listen (~> 3.2)
   puma (~> 4.1)
   rails (~> 6.0.3, >= 6.0.3.4)

app/controllers/application_controller.rb

@@ -1,4 +1,11 @@
 # frozen_string_literal: true
 
 class ApplicationController < ActionController::API
+  include JsonapiErrorsHandler
+
+  ErrorMapper.map_errors!(
+    'ActiveRecord::RecordNotFound' =>
+      'JsonapiErrorsHandler::Errors::NotFound'
+  )
+  rescue_from ::StandardError, with: lambda { |e| handle_error(e) }
 end