This method always receives nil for the offset. Consequently, partial downloads are never executed, even in the final and challenge versions of the project.
Verified by adding these print statements:
if let offset = offset {
...
print("Using partial download...")
} else {
...
print("Using full download...")
}
Can you please provide more detailed steps how to reproduce this issue?
Here’s what I’m doing: I’m using the “challenge” project folder for Chapter 3, when I add a breakpoint right after if let offset = offset { the debugger breaks right there:
Thanks for the quick reply!
Turns out, I was confused. I had progressed only as far as implementing and testing the Gold button plan. The code for implementing the Gold button plan has us writing both the if let offset = offset block as well as the else part of that block, but the if part is not used by the Gold plan – that code is only executed by the not-yet covered Cloud 9 plan. It seems like the tutorial usually only asks us to write code that we need for the specific topic at hand, not code that will be required by later functionality – so I was confused. Other than that, I’ve found this tutorial very clear and well-written, and I’ve learned a lot about the modern way to write async Swift code. Thanks again.
