VCR
1.0.0
1.0.0
  • Initial page
  • record_modes
    • :none
    • :new_episodes
    • :all
    • :once
  • test_frameworks
    • Usage with Test::Unit
    • Usage with Cucumber
    • Usage with RSpec metadata
  • request_matching
    • Matching on Headers
    • Matching on Body
    • Matching on Method
    • URI without param(s)
    • Identical requests are replayed in sequence
    • Matching on Body
    • Playback repeats
    • Matching on URI
    • Matching on Host
    • Matching on Path
    • Matching on Query string
    • Register and use a custom matcher
  • cassettes
    • exclusive cassette
    • Update content_length header
    • Error for HTTP request made when no cassette is in use
    • Naming
    • Allow Unused HTTP Interactions
    • Freezing Time
    • Decode compressed response
    • Dynamic ERB cassettes
    • Automatic Re-recording
    • Cassette format
  • configuration
    • hook_into
    • cassette_library_dir
    • Filter sensitive data
    • Ignore Request
    • Debug Logging
    • default_cassette_options
    • query_parser
    • uri_parser
    • Allow HTTP connections when no cassette
    • Preserve Exact Body Bytes
  • http_libraries
    • EM HTTP Request
    • Net::HTTP
  • hooks
    • before_playback hook
    • after_http_request hook
    • before_http_request hook
    • before_record hook
    • around_http_request hook
  • middleware
    • Faraday middleware
    • Rack
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  • Background ()
  • Replay interaction that matches the body as JSON
  • Examples

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  1. request_matching

Matching on Body

Use the :body_as_json request matcher to match requests on the request body where the body is JSON.

Background ()

Given a previously recorded cassette file "cassettes/example.yml" with:

---
http_interactions:
- request:
    method: post
    uri: http://example.net/some/long/path
    body:
      encoding: UTF-8
      string: '{ "a" : "1" }'
    headers: {}
  response:
    status:
      code: 200
      message: OK
    headers:
      Content-Length:
      - "14"
    body:
      encoding: UTF-8
      string: body1 response
    http_version: "1.1"
  recorded_at: Tue, 01 Nov 2011 04:58:44 GMT
- request:
    method: post
    uri: http://example.net/some/long/path
    body:
      encoding: UTF-8
      string: '{ "a" : "1", "b" : "2" }'
    headers: {}
  response:
    status:
      code: 200
      message: OK
    headers:
      Content-Length:
      - "14"
    body:
      encoding: UTF-8
      string: body2 response
    http_version: "1.1"
  recorded_at: Tue, 01 Nov 2011 04:58:44 GMT
recorded_with: VCR 2.0.0

Replay interaction that matches the body as JSON

And a file named "body_as_json_matching.rb" with:

include_http_adapter_for("<http_lib>")

require 'vcr'

VCR.configure do |c|
  <configuration>
  c.cassette_library_dir = 'cassettes'
end

VCR.use_cassette('example', :match_requests_on => [:body_as_json]) do
  puts "Response for body as json 2: " + response_body_for(:put, "http://example.com/", '{ "a" : "1", "b" : "2" }')
end

VCR.use_cassette('example', :match_requests_on => [:body_as_json]) do
  puts "Response for body as json 1: " + response_body_for(:put, "http://example.com/", '{ "a" : "1" }')
end

When I run ruby body_as_json_matching.rb

Then it should pass with:

Response for body as json 2: body2 response
Response for body as json 1: body1 response

Examples

configuration

http_lib

c.hook_into :webmock

net/http

c.hook_into :webmock

httpclient

c.hook_into :webmock

curb

c.hook_into :webmock

patron

c.hook_into :webmock

em-http-request

c.hook_into :webmock

typhoeus

c.hook_into :typhoeus

typhoeus

c.hook_into :excon

excon

c.hook_into :faraday

faraday (w/ net_http)

c.hook_into :faraday

faraday (w/ typhoeus)

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Last updated 5 years ago

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