Our Team Lead proposed exciting things when we tried to cover our API endpoint (.NET language) with a contract test, which required binary content in the request body. But, as Matt Fellows mentioned, we cannot interpret in something at JSON.

So, my question is - can we allow engineers to use in withRequest.body, but with interpretation to something like empty JavaScript object ( {} ) or something "magic" actions. In any case, this allowed us to write more honest contract tests, with explicit marks, that we expected to use in the request body - and can verify that in the generated pact specification.