Companion

Check the entire contract, including extracting the body, before passing it to the underlying HttpHandler.

Check all parts of the contract apart from the body, relying on the HttpHandler code to raise a correct LensFailure if extraction fails. Use this option to avoid re-extracting the body multiple times.

Check none the contract, relying entirely on the HttpHandler code to raise a correct LensFailure if extraction fails. Use this option to fully optimise performance, at the risk of not checking