Building a Production Audio Recorder with Expo and React Native

Mobile audio recording is a core feature in many modern apps, powering everything from voice memos to podcast tools and user-generated content platforms. If you’re developing a mobile app with React Native, the Expo framework provides a robust set of APIs—especially the expo-av module—that simplifies cross-platform audio capture. But moving from a basic demo to a reliable, production-ready audio recorder means addressing a host of real-world challenges: managing permissions, supporting background recording, handling file storage, and reliably uploading recordings. Let’s explore how to build a production-grade audio recorder using Expo and React Native, focusing on background recording, file management, and upload strategies. Along the way, you’ll find practical code examples and architectural tips for scalable, maintainable implementations. Setting Up Expo AV for Audio Recording The foundation for any React Native audio app is the expo-av package. This library abstracts away platform-s