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rn-fetch-blob
A project committed to making file access and data transfer easier, efficient for React Native developers.
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
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react-native-blob-util
A project committed to making file access and data transfer easier, efficient for React Native developers.
I have found an issue here https://github.com/joltup/rn-fetch-blob/issues/212 , also, none of the provided solutions worked.
You could try https://github.com/alpha0010/react-native-file-access, really stable and uses up to date sdks specially on Android
I don’t have an answer to your question, but I would recommend using this fork, since rn-blob-util is no longer maintained and has several serious issues that won’t be fixed: https://github.com/RonRadtke/react-native-blob-util