dredd_stashes.coffee

# stash object will automatically cache all responses under key with their name,
# parse JSON body and parse headers
{before, after, stash} = require 'hooks'

before "Machines > Machine > Retrieve a Machine", (transaction) ->
  newId = stash['Machines > Machines collection > Create a Machine'].response.body._id

  # replace id taken from blueprint with id from stash
  transaction.request.uri = transaction.request.uri.replace '52341870ed55224b15ff07ef', newId
  transaction.fullPath = transaction.fullPath.replace '52341870ed55224b15ff07ef', newId

# or better with some patchUri helper on transaction object

{before, after, stash} = require 'hooks'

before "Machines > Machine > Retrieve a Machine", (transaction) ->
  newId = stash['Machines > Machines collection > Create a Machine'].response.body._id
  transaction.patchUri _id: newId