another possibility for application developers - mocking can be done at the "application" level. For example, using something like Jest, or Supabase can build m

another possibility for application developers - mocking can be done at the "application" level. For example, using something like Jest, or Supabase can build mocking into client libs. I'm not clear how mocking in the middleware is materially different from this approach (except perhaps you are testing network connectivity too).