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When working with iOS apps, debugging HTTP requests can be challenging. Requestly Interceptor offers an easy-to-use solution for monitoring, modifying, and debugging HTTP requests and responses during development or QA testing. Once you’re familiar with the HTTP Interceptor and network table, you can follow step-by-step instructions to set up Requestly Interceptor for intercepting network traffic on your iOS Simulator, ensuring a fully functional interception setup for your iOS app development needs.
iOS Simulator interception is only supported on the Desktop App.

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Setup iOS Simulator for Interception

The iOS Simulator is a virtual device that runs on a Mac desktop or laptop, and its proxy setup for HTTP interception is similar to that of a physical device. Since the simulator runs locally on your Mac, Requestly Interceptor offers an added advantage by enabling a seamless, one-click setup for interception.

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One-click Simulator Setup for Interception

Step 1: Launch the iOS Simulator for your app.
Make sure the simulator is running before proceeding.
Step 2: In Requestly Interceptor Desktop App, open Connect Apps Panel, switch to Mobile apps & browsers tab, and click Refresh Device. This will display all currently running simulators. Step 3: Verify that your simulator appears in the list. Step 4: Click Connect All button next to your simulator. This action will set up the proxy configuration and automatically trust the root certificate on the simulator. Step 5: Once connected, you will see all network traffic being captured.
This will enable system-wide proxy because iOS simulators use systems NIC directly instead of creating a virtual NIC. You will see lots of traffic from your computer and iOS, you can filter the traffic by App name.

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Troubleshooting

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Simulator Not Listed in Requestly Interceptor?

If you do not see your simulator listed after refreshing, follow these steps:
1

Open a terminal and run:

xcrun simctl
If this command returns an error, it indicates an issue with your Xcode command-line tools.
2

To fix this issue, run:

sudo xcode-select -s /Applications/Xcode.app
This command ensures that the correct Xcode installation is selected.
3

After running the above command, go back to Requestly Interceptor and click Refresh Device again. Your simulator should now appear in the list.