How to Build a React Native Video Upload That Survives App Backgrounding

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A standard fetch() upload in React Native fails silently when the OS suspends or kills the app mid-transfer, leaving no error and no settled promise. To work around this, developers can persist upload state in a SQLite database and use a native background session — iOS Background URLSession and an Android foreground service — to handle the actual file transfer. The approach requires writing the file body to disk first, since iOS background sessions do not support in-memory data or stream bodies. On Android, targeting version 14 and above requires declaring a dataSync foreground service type, while Android 15 introduces a 6-hour daily cap on such services. The full implementation, written against Expo SDK 54 and SDK 55, runs to roughly 150 lines and reconciles upload state with the server when the app returns to the foreground.

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Study: WebP at Quality 80–85 Beats High-JPEG Settings for Photos

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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