vcr_configuration.rb

VCR.configure do |config|
  config.cassette_library_dir = "test/fixtures/cassettes"
  config.hook_into :webmock
  config.default_cassette_options = {
    record: :once
  }
  config.before_record do |i|
    if i.response.headers["Content-Type"].any? { |h| h =~ /json/ }
      # Try to pretty format json body, rescue and proceed if it's not possible
      i.response.body.replace JSON.pretty_generate(JSON.parse(i.response.body)) rescue nil
    end
    i.response.body.force_encoding('UTF-8') # prevent recording as binary for readability
  end
end