request_matcher.md
In vcr: Record 'HTTP' Calls to Disk

request_matches has useful logging

Code
  . <- request_matches(req1, req1)
Output
  [Cassette: <none>]     Request 1: MATCH
Code
  . <- request_matches(req1, req2)
Output
  [Cassette: <none>]     Request 1: NO MATCH
  [Cassette: <none>]       `matching$uri$path`: ""    
  [Cassette: <none>]       `recorded$uri$path`: "/foo"
Code
  . <- request_matches(req1, req3)
Output
  [Cassette: <none>]     Request 1: NO MATCH
  [Cassette: <none>]       `matching$method`: "GET" 
  [Cassette: <none>]       `recorded$method`: "POST"
Code
  . <- request_matches(req1, req4)
Output
  [Cassette: <none>]     Request 1: NO MATCH
  [Cassette: <none>]       `matching$method`: "GET" 
  [Cassette: <none>]       `recorded$method`: "POST"
  [Cassette: <none>]       `matching$uri$path`: ""    
  [Cassette: <none>]       `recorded$uri$path`: "/foo"

informative feedback for components that are absent

Code
  . <- request_matches(req1, req2)
Output
  [Cassette: <none>]     Request 1: NO MATCH
  [Cassette: <none>]       `matching$uri$params` is length 0
  [Cassette: <none>]       `recorded$uri$params` is length 1
  [Cassette: <none>]       `names(matching$uri$params)`:    
  [Cassette: <none>]       `names(recorded$uri$params)`: "q"
  [Cassette: <none>]       `matching$uri$params$q` is absent
  [Cassette: <none>]       `recorded$uri$params$q` is a character vector ('1')

default matcher includes body_json

Code
  use_cassette("test", httr2::req_perform(req2))
Output
  [Cassette: test] Inserting 'test.yml' (with 1 interactions)
  [Cassette: test]   Mode: replaying
  [Cassette: test] Handling request: POST {httpbin}/post
  [Cassette: test]   Looking for existing requests using method/uri/body_json
  [Cassette: test]     Request 1: NO MATCH
  [Cassette: test]       `matching$body$foo`: "baz"
  [Cassette: test]       `recorded$body$foo`: "bar"
  [Cassette: test]   No matching requests
Condition
  Error:
  ! Failed to find matching request in active cassette, "test".
  i Learn more in `vignette(vcr::debugging)`.

default matcher includes body

Code
  use_cassette("test", httr2::req_perform(req2))
Output
  [Cassette: test] Inserting 'test.yml' (with 1 interactions)
  [Cassette: test]   Mode: replaying
  [Cassette: test] Handling request: POST {httpbin}/post foo=baz
  [Cassette: test]   Looking for existing requests using method/uri/body
  [Cassette: test]     Request 1: NO MATCH
  [Cassette: test]       `matching$body`: "foo=baz"
  [Cassette: test]       `recorded$body`: "foo=bar"
  [Cassette: test]   No matching requests
Condition
  Error:
  ! Failed to find matching request in active cassette, "test".
  i Learn more in `vignette(vcr::debugging)`.