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How to debug network traffic in xcode agnostic?


Asked by Keily Warner on Dec 15, 2021 FAQ



One technique that can aide in your network traffic debugging is using CFNetwork diagnostics logging. Using this Core Foundation logging technique you can see de-crypted information on the stream data between the server and your client and the state of your connection as it is opened and closed at the kernel level.
One may also ask,
The Xcode debugging tools are integrated throughout the Xcode main window but are primarily located in the Debug area, the debug navigator, the breakpoint navigator, and the source editor.
Likewise, So how does CFNetwork diagnostics logging work in Xcode? In short, it’s an Xcode environment variable that you can use to set a log priority to direct Core Foundation to show you more or less information about the state of your network traffic.
In addition,
Debugging iOS traffic from a device to a router or from a device to a server can present many challenges. Often you may find yourself sifting through thousands of encrypted packets trying to make sense out which packets belong to what tcp streams and trying to draw sensible conclusions from just the transmission behavior alone.
Also Know,
Xcode Instruments can provide an informative look into the state of network connections by process or network interface on a device. One thing that Instruments does not do though is that it does not provide raw packet information like CFNetwork Diagnostic logging or Wireshark would.