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A logger for Grape apps that uses Lograge

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Logs:

  • Request path
  • Parameters
  • Endpoint class name and handler
  • Response status
  • Duration of the request
  • Exceptions
  • Error responses from error!

Installation

Add this line to your application's Gemfile:

gem 'grape', '>= 0.14.0'
gem 'grape-middleware-lograge'

Usage

class API < Grape::API
  # @note Make sure this above you're first +mount+
  use Grape::Middleware::Lograge
end

Server requests will be logged to STDOUT by default.

Custom setup

Customize the logging by passing the filter option. Example using parameter sanitization:

use Grape::Middleware::Lograge, {
  filter: CustomFilter.new
}

The filter option can be any object that responds to .filter(params_hash)

Example output

Get

Started GET "/v1/reports/101" at 2015-12-11 15:40:51 -0800
Processing by ReportsAPI#reports/:id
  Parameters: {"id"=>"101"}
Completed 200 in 6.29ms

Error

Started POST "/v1/reports" at 2015-12-11 15:42:33 -0800
Processing by ReportsAPI#reports
  Parameters: {"name"=>"foo", "password"=>"[FILTERED]"}
  Error: {:error=>"undefined something something bad", :detail=>"Whoops"}
Completed 422 in 6.29ms

Using Rails?

Rails.application.config.filter_parameters will be used automatically as the default param filterer.

Rack

If you're using the rackup command to run your server in development, pass the -q flag to silence the default rack logger.

Credits

This code is forked from grape-middleware-logger.

Big thanks to jadent's question/answer on stackoverflow for easily logging error responses. Borrowed some motivation from the grape_logging gem and would love to see these two consolidated at some point.

Contributing

  1. Fork it ( https://github.com/tchak/grape-middleware-lograge/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

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  • Ruby 100.0%