---
title: "Discussion on \"Ensure safe code in your iOS app extensions\" | Hashnode"
description: "Discussion on \"Ensure safe code in your iOS app extensions\". Understand the Require Only App-Extension-Safe API\" (APPLICATION_EXTENSION_API_ONLY) build setting relevant for iOS extensions"
url: "https://hashnode.com/posts/ensure-safe-code-in-your-ios-app-extensions/659c0295c50b0b907bb9ef4a"
---

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# [Ensure safe code in your iOS app extensions](https://blog.eidinger.info/ensure-safe-code-in-your-ios-app-extensions?utm_source=hashnode&utm_medium=feed)

Understand the Require Only App-Extension-Safe API" (APPLICATION\_EXTENSION\_API\_ONLY) build setting relevant for iOS extensions

Jan 8, 2024 · 2 min read · blog.eidinger.info  
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-   [#ios](https://hashnode.com/tag/ios)
-   [#swift](https://hashnode.com/tag/swift)

## Written by

[Marco Eidinger](https://hashnode.com/@MarcoEidinger)

@MarcoEidinger

  
[View profile](https://hashnode.com/@MarcoEidinger)

#Swift #iOS SDK architect 🇺🇸 🇩🇪

I am a Software Engineer working on open source and enterprise mobile SDKs for iOS and MacOS developers written in Swift. From 🇩🇪 and happily living in 🇺🇸

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