Logo: Relish

  1. Sign in

Project: Vcr 1.11.3

Publisher: VCR

Faraday middleware

VCR provides middleware that can be used with Faraday. You can use this as
an alternative to Faraday's built-in test adapter.

To use VCR with Faraday, you should configure VCR to stub with faraday and
use the provided middleware. The middleware should come before the Faraday
HTTP adapter. You should provide the middleware with a block where you set
the cassette name and options. If your block accepts two arguments, the
env hash will be yielded, allowing you to dynamically set the cassette name
and options based on the request environment.

Background
Given
a file named "env_setup.rb" with: 
require 'vcr_cucumber_helpers'

request_count = 0
start_sinatra_app(:port => 7777) do
  get('/:path') { "Hello #{params[:path]} #{request_count += 1}" }
end

require 'vcr'

VCR.config do |c|
  c.cassette_library_dir = 'cassettes'
  c.stub_with :faraday
end
Scenarios
Use Faraday middleware
Given
a file named "faraday_example.rb" with: 
require 'env_setup'

conn = Faraday::Connection.new(:url => 'http://localhost:7777') do |builder|
  builder.use VCR::Middleware::Faraday do |cassette|
    cassette.name    'faraday_example'
    cassette.options :record => :new_episodes
  end

  builder.adapter :adapter
end

puts "Response 1: #{conn.get('/foo').body}"
puts "Response 2: #{conn.get('/foo').body}"
When
I run ruby faraday_example.rb
Then
the output should contain: 
Response 1: Hello foo 1
Response 2: Hello foo 1
And
the file "cassettes/faraday_example.yml" should contain "body: Hello foo 1"
Examples:
adapter
net_http
typhoeus
Set cassette name based on faraday env
Given
a file named "faraday_example.rb" with: 
require 'env_setup'

conn = Faraday::Connection.new(:url => 'http://localhost:7777') do |builder|
  builder.use VCR::Middleware::Faraday do |cassette, env|
    cassette.name    env[:url].path.sub(/^\//, '')
  end

  builder.adapter :net_http
end

puts "Response 1: #{conn.get('/foo').body}"
puts "Response 2: #{conn.get('/foo').body}"
puts "Response 3: #{conn.get('/bar').body}"
puts "Response 4: #{conn.get('/bar').body}"
When
I run ruby faraday_example.rb
Then
the output should contain: 
Response 1: Hello foo 1
Response 2: Hello foo 1
Response 3: Hello bar 2
Response 4: Hello bar 2
And
the file "cassettes/foo.yml" should contain "body: Hello foo 1"
And
the file "cassettes/bar.yml" should contain "body: Hello bar 2"

Last published over 4 years ago by myronmarston.