Net::Http::Middleware

Middlewares for Net::HTTP request method.

Usage

There are couple of requirements for middleware to be implemented

1. Chain as a first argument for initializer of your middleware
2. 2 params for call: Request-object and body to be passed to call
3. Return the result of @chain.call(req, body)

# Example of tracer, which will add header to each outgoing request
class OpenTraceId
  def initialize(chain)
    @chain = chain
  end

  def call(req, body = nil)
    request.add_field('X-Custom-CrossService-RequestId', SecureRandom.uuid)
    @chain.call(req, body)
  end
end

# Example of Loging for 
class LogRequest
  def initialize(chain, logger)
    @chain = chain
    @logger = logger
  end

  def call(req, body = nil)
    @logger.info('We log before')
    response = @chain.call(req, body)
    @logger.info('We log after')
    response
  end
end

require 'net/http/middleware'
# Adding middlewares to configurator
Net::HTTP.configure_middleware do |chain|
  chain.use LogRequest, Logger.new(STDOUT)
  chain.use OpenTraceId
end

Installation

Add this line to your application's Gemfile:

gem 'net-http-middleware'

And then execute:

$ bundle

Or install it yourself as:

$ gem install net-http-middleware

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/net-http-middleware.

License

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