# AddAppTransportSecurityException(AppTransportSecurityExceptionEntry[], bool)

> Add the App Transport Security Exception capability.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor.iOS.Xcode](/engine/6000.3/script-reference/unityeditor/ios/xcode.md)
* **Assembly:** UnityEditor.iOS.Extensions.Xcode

```csharp
public void AddAppTransportSecurityException(ProjectCapabilityManager.AppTransportSecurityExceptionEntry[] entries, bool overwrite = false)
```

### Parameters

**** (\[AppTransportSecurityExceptionEntry\[]]\(/engine/6000.3/script-reference/unityeditor/ios/xcode/projectcapabilitymanager/apptransportsecurityexceptionentry)): The list of App Transport Security Exception entries to configure.**** (\[bool]\(https\://learn.microsoft.com/dotnet/api/system.boolean)): Set to true to overwrite existing data. The default value is false.

### Examples

```csharp
using UnityEditor;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;

public class Sample_AddAppTransportSecurityException  
{
    [PostProcessBuild]
    public static void OnPostprocessBuild(BuildTarget buildTarget, string pathToBuiltProject)
    {
        // Stop processing if build target isn't iOS

        if (buildTarget != BuildTarget.iOS)
            return;

        // Initialize PBXProject
        var projectPath = PBXProject.GetPBXProjectPath(pathToBuiltProject);
        PBXProject pbxProject = new PBXProject();
        pbxProject.ReadFromFile(projectPath);

        // Get Main target GUID
        string mainTargetGuid = pbxProject.GetUnityMainTargetGuid();

        // Check if there's already an entitlements file created and use it. If not, create a new file called Example.entitlements
        string entitlementsFile = pbxProject.GetBuildPropertyForAnyConfig(mainTargetGuid, "CODE_SIGN_ENTITLEMENTS");
        if (entitlementsFile == null)
        {
            entitlementsFile = string.Format("Example.entitlements");
        }

        // Initialize ProjectCapabilityManager
        ProjectCapabilityManager capabilityManager = new ProjectCapabilityManager(projectPath, entitlementsFile, targetGuid: mainTargetGuid);

        // Set up App Transport Security Exception domain array
        ProjectCapabilityManager.AppTransportSecurityExceptionEntry[] entries = new ProjectCapabilityManager.AppTransportSecurityExceptionEntry[]{
            new ProjectCapabilityManager.AppTransportSecurityExceptionEntry("exampledomain.com", true, true, "20.1", true),
            new ProjectCapabilityManager.AppTransportSecurityExceptionEntry("secondexampledomain.com", true, true, "20.3", false),
            new ProjectCapabilityManager.AppTransportSecurityExceptionEntry("thirdexampledomain.com", true, true, "20.4", false)
        };

        // Add 'App Transport Security Exception' capability and pass previously created domain array
        capabilityManager.AddAppTransportSecurityException(entries);

        // Call WriteToFile to save the changes to project file
        capabilityManager.WriteToFile();
    }

}
```