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Invalidate OTP after timeout using firebase phone authentication in flutter

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I am using firebase phone authentication in my flutter application and I want to send new OTP after timeout (say 60 seconds), instead of sending same duplicate OTP again on resend request.

The timeout parameter of _firebaseAuth.verifyPhoneNumber() corresponds to SMS auto-retrieval timeout and not the OTP expiration time. How can I workaround with that?

firebase flutter firebase-authentication one-time-password sms-verification
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Skander Hamdi On

The timeout parameter is for OTP expiration time

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