Trevor Whittingham • 6/25/2026

Use Apple Container Machines To Test A Swift Backend For Your iOS App

This article explains how iOS developers can use Apple's container machines to run a Swift backend locally for testing iOS app features. It covers setting up a simple Vapor-based test service with endpoints for health checks, feature flags, and receipt validation, enabling realistic integration testing without stubs or production dependencies. The approach leverages Apple's open-source container tool to run a Linux environment that shares the macOS working directory, providing a fast local development loop.

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#Backend #testing #Io