around_http_request hook

The around_http_request hook wraps each HTTP request. It can be used rather than separate before_http_request and after_http_request hooks to simplify wrapping/transactional logic (such as using a VCR cassette).

In your block, call #proceed on the yielded request to cause it to continue. Alternately, you can treat the request as a proc and pass it on to a method that expects a block by prefixing it with an ampersand (&request).

Note that around_http_request will not work on Ruby 1.8. It uses a fiber under the covers and thus is only available on interpreters that support fibers. On 1.8, you can use separate before_http_request and after_http_request hooks.

globally handle requests using an around_http_request hook

Given a file named "globally_handle_requests.rb" with:

include_http_adapter_for("<http_lib>")

request_count = 0
$server = start_sinatra_app do
  get('/') { "Response #{request_count += 1 }" }
end

require 'vcr'

VCR.configure do |c|
  <configuration>
  c.cassette_library_dir = 'cassettes'
  c.default_cassette_options = { :serialize_with => :syck }
  c.around_http_request do |request|
    VCR.use_cassette('global', :record => :new_episodes, &request)
  end
end

puts "Response for request 1: " + response_body_for(:get, "http://localhost:#{$server.port}/")
puts "Response for request 2: " + response_body_for(:get, "http://localhost:#{$server.port}/")

When I run ruby globally_handle_requests.rb

Then it should pass with:

Response for request 1: Response 1
Response for request 2: Response 1

And the file "cassettes/global.yml" should contain "Response 1".

Examples