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Firebase Phone Auth Testing in Flutter: Test Numbers vs Real SMS

by Willette dev.to

15 min read

Disclosure: I work with HeroSMS, the virtual number provider used in the examples below. Written with AI tools; code and endpoints checked against the HeroSMS API reference. If you've shipped Firebase phone auth in a Flutter app, this story may sound familiar. On your machine everything is green: you add a test number in the Firebase console, type 123456, sign in, merge. After the release, the re…

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Topics Provider Firebase Testing

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