> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zixflow.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Advanced Configuration

> Advanced Configuration — Zixflow iOS SDK integration guide.

### Configuration Options

```swift theme={null}
let config = SDKConfigBuilder(apiKey: "YOUR_API_KEY")

    // Logging: Set log level for debugging
    .logLevel(.debug)  // .error, .info, .debug

    // Auto-tracking: Automatically track device info
    .autoTrackDeviceAttributes(true)

    // Lifecycle events: Track app open, close, etc.
    .trackApplicationLifecycleEvents(true)

    // Screen tracking: Auto-track UIKit screen views
    .autoTrackUIKitScreenViews()

    // Screen view configuration
    .screenViewUse(screenView: .InApp)  // or .all

    // Custom endpoints (advanced)
    .apiHost("dev-events.zixflow.in")
    .cdnHost("custom-cdn.example.com")

    // Event batching
    .flushAt(20)          // Send events after 20 tracked
    .flushInterval(30)    // Or every 30 seconds

    // Deep linking callback
    .deepLinkCallback { url in
        print("Deep link received: \(url)")
        // Handle deep link navigation
        return true  // Return true if handled
    }

    // Location tracking
    .addModule(LocationModule(
        config: LocationConfig(mode: .onAppStart)
    ))

    .build()
```

### Log Levels

Control SDK logging verbosity:

```swift theme={null}
.logLevel(.error)  // Errors only
.logLevel(.info)   // Errors + informational messages
.logLevel(.debug)  // All messages (use in development)
```

### Deep Link Handling

Handle universal links from push notifications:

```swift theme={null}
let config = SDKConfigBuilder(apiKey: "YOUR_API_KEY")
    .deepLinkCallback { url in
        // Parse and handle the deep link
        if url.path == "/product" {
            // Navigate to product screen
            return true
        }
        return false  // Return false to open in browser
    }
    .build()
```

***