Before HTTP Request Hook
The before_http_request
hook gets called with each request just before it proceeds. It can be used for many things:
globally logging requests
inserting a particular cassette based on the request URI host
raising a timeout error
You can also pass one or more "filters" to
before_http_request
, to make the hook only be called for some requests. Any object that responds to#to_proc
can be a filter. Here are some simple examples::real?
-- only real requests:stubbed?
-- only stubbed requests:ignored?
-- only ignored requests:recordable?
-- only requests that are being recordedlambda { |r| URI(r.uri).host == 'amazon.com' }
-- only requests to amazon.com.
log all requests using a before_http_request hook
Given a file named "before_http_request.rb" with:
include_http_adapter_for("<http_lib>")
if ARGV.include?('--with-server')
$server = start_sinatra_app do
get('/') { "Hello World" }
end
end
require 'vcr'
VCR.configure do |c|
<configuration>
c.cassette_library_dir = 'cassettes'
c.before_http_request(:real?) do |request|
File.open(ARGV.first, 'w') do |f|
f.write("before real request: #{request.method} #{request.uri}")
end
end
end
VCR.use_cassette('hook_example') do
port = $server ? $server.port : 0
make_http_request(:get, "http://localhost:#{port}/")
end
When I run ruby before_http_request.rb run1.log --with-server
Given that port numbers in "run1.log" are normalized to "7777"
Then the file "run1.log" should contain "before real request: get http://localhost:7777/"
When I run ruby before_http_request.rb run2.log
Then the file "run2.log" should not exist.
Examples
configuration
http_lib
c.hook_into :webmock
net/http
c.hook_into :webmock
httpclient
c.hook_into :webmock
curb
c.hook_into :typhoeus
typhoeus
c.hook_into :excon
excon
c.hook_into :faraday
faraday (w/ net_http)
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