install robust_params_parser to get rid of 500 status code when receiving requests that send the header content-type: application/json but no valid json in body

Author: patricklx

Diff for: Gemfile

@@ -124,6 +124,7 @@ source 'https://rubygems.org' do
   gem 'compass-rails'
   gem 'strong_parameters'
   gem 'postgres_ext'
+  gem 'robust_params_parser'
 # ElasticSearch client
   gem 'tire'
 # /DROP BEFORE RAILS 4

Diff for: config/application.rb

@@ -40,6 +40,9 @@ class Application < Rails::Application
     config.rakismet.url = ENV['AKISMET_URL']
 
     config.exceptions_app = self.routes
+
+    # DROP BEFORE RAILS 4
+    config.middleware.swap ActionDispatch::ParamsParser, ::RobustParamsParser, {}
   end
 end