Follow the steps below to profile using Instruments: Inspecting the Appīefore testing the app on a device, change the bundle identifier if necessary and set the provisioning profile. Now that you have a better understanding of the tool, next you’ll use it to inspect the app. Currently, the HTTP Traffic Instrument doesn’t support simulator, mocking requests or responses, injecting or modifying payloads. While it’s a great tool, it has limitations. It even works when SSL pinning is enforced or when using a VPN, all while showing the entire requests and responses in a pretty format for HTTP/s connections. HTTP Traffic also enables network debugging without needing to install any certificates on the device. In this way, it’s unlike other proxy web debugging tools available, such as Charles Proxy or Proxyman. HTTP Traffic not only helps you see what’s happening with the request/response you receive while using a web service API, it also helps you see what’s happening with the connection. In its Network profiling template, Instruments 13 introduces a new HTTP Traffic Instrument which lets you track and inspect all the HTTP traffic flowing in the app. The instrument you’ll use here is the HTTP Traffic Instrument. ![]() Instruments can help to identify the underlying issues. Try using the app, and you’ll notice a few issues that need addressing. Check out the data models, views and view models to understand the implementation. This file is the networking helper class that manages all the API requests and responses in the app. Pay particular attention to DataProvider.swift. ![]() ![]() You can use these test credentials to login to the app or signup for an account at. You’ll use the APIs provided by and for this tutorial. Navigate around the app to familiarize yourself with the UI. Profile: Lets the user login and displays user activity on login.Explore: A list of quotes the user can select, view and bookmark.Today: Shows the Quote of the Day along with a Shuffle button. ![]() The starter project is a tab-based app called Shuffle built using Swift UI. Use the Download Materials button at the top or bottom of this tutorial to download the starter project. Note: You’ll need an Apple Developer account to run the app on a physical device.
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