> - In case of errors, do we get a full backtrace of function calls across service boundaries? Unless you don't discard the error, then yes > - Is the functio

> - In case of errors, do we get a full backtrace of function calls across service boundaries? Unless you don't discard the error, then yes > - Is the function call as cheap as passing an argument? What if we're passing 1KB? 1MB? 1GB? No it is not. In general microservice costs are bit higher. > Can we use a debugger to step in and out of those functions? You could trace across services but passing the context. Also attaching debugger is possible afaik. > Can we spin up a simple test runner to integration test a few levels of function calls together? I use docker compose and it can be done > - Can all database modifications run in a single transaction so that we know that either all of them happened or none at all? Yes. I don't see how this is different than function call.