问题
Is there a way to limit the bandwidth in NSURLSession?
I'm making file-sync-client for macOS like Dropbox/GoogleDrive/pCloud and they all have bandwidth limiting options, but I'm not sure how to configure NSURLSession to respect bandwidth limiting.
回答1:
Unless Apple has added something very recently, NSURLSession provides no facilities for bandwidth limiting. The only ways I'm aware of to do that are:
- Use lower-level APIs that allow you to provide your own sockets and then throttle the data rate at the TCP socket level.
- Provide an in-app web proxy and use it for all outgoing requests. Configure the proxy to limit the bandwidth of all requests that go through it.
回答2:
Looks like ASIHTTPRequest features Bandwidth throttling support. Although it may be an old library, from what I observe it's still fully functional thus it may be worth exploring.
Of course, using ASIHTTPRequest would require abandoning NSURLSession for this purpose.
来源：https://stackoverflow.com/questions/46367823/nsurlsession-bandwidth-limiting