Rails rack middleware to catch JSON parse errors

Installation

Add this line to your application's Gemfile:

gem 'invalid_json_error_middleware'

And then execute:

$ bundle

Or install it yourself as:

$ gem install invalid_json_error_middleware

Usage

config/application.rb

class Application < Rails::Application
  config.middleware.use InvalidJsonErrorMiddleware
end

For using additional filter checks or/and custom error message:

class Application < Rails::Application
  config.middleware.use InvalidJsonErrorMiddleware, filter_handler: ->(env) { env['HTTP_ACCEPT'] =~ /json/ }, error_handler: ->(error) { "Custom error message: #{error}" }
end

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/Snick555/invalid_json_error_middleware. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.