I have google account and want to recover that but i don't have backup code whenever i am trying to login for gmail account, its prompting me to enter a backup code. Earlier when i was able to use that gmail account then i have opted for 2 step verification. After adding the 2step verification then we are able to get notification on our phone number regarding OTP number. After certain period of time then I have deleted that gmail account. Now if i am trying to login then i am not able to get any notification message on my phone number.
Can anyone help to restore the gmail account?
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I have built an app that uses email & password authentication from Firebase, to enable users to log in, as per the Firebase documentation. The app itself uses Flutter as the coding language. I also have email verification enabled, to prevent spam accounts.
When a user adds their email address and password and clicks 'submit', they're given a notification telling them to check their emails for the verification link, which they must do before being allowed to log in.
The problem I am having is that users do not receive the verification email, so cannot log in. I've come across similar questions on this forum, where the answers have centred around checking spam/junk folders. I have asked the users to do this but they still have not received the email.
I've also tried using my own SMTP server, which is one from which I know I can send emails. Even with this, the users do not receive their verification email. This makes me think the emails aren't being generated/sent, as opposed to them being sent and not being received.
Can anyone suggest why this might be the case? Why is it that users are not receiving the verification email and what can I do to correct this?
If you don't use custom domain, sometimes emails go in spam folder
I am creating a messenger app. In order to register a new user what I want is to get email and password from the user and before creating the account I want to verify the email provided by the user.
But the problem with firebase email verification is that you have to create account/user first then you can send the email verification link to the user.
Now this can lead to major problem: Suppose if some fake user used my email and created account but failed to verify email. But still he manages to create an account with my email.
So if later I will try to register my self to the app then I am firebase is going to show me Email already used.
To solve this issue I want to delete account created if user fails to verify his email just after he tried to register himself.
To do this I created an email verification screen which is pushed as soon as new user register through his email and password. Now here app will be waiting for user to verify his/her email by clicking the link send by firebase. I have also provided a cancel verification button. So if user cancel the verification I am just deleting the account which was already created. I am also handling if user press back key without verifying email which will also delete the user account.
Main Problem: Now the the last thing I need to handle is if user force quit the app. In order to handle this I tried to delete the account in dispose method as well as I used WidgetsBindingObserver. But both of them doesn't work for me.
Please help me to solve this!
The idea of email Link verification was created to solve this problem. Instead of creating an account and then verifying the email after, the account is just directly created from your email. So obviously you must have access to the email to create the account. See https://firebase.flutter.dev/docs/auth/usage/#email-link-authentication for details on how to implement this style of link authentication.
A similar discussion of how to handle quitting the app is occurring here How to execute code before app exit flutter . However abrupt quits from an app whether done by the user or the system are hard to handle by nature.
I wouldn't recommend deleting the account when quitting/ closing etc. the app since it is something legitimate users may do before confirming their email (especially if the email is delayed in being sent for whatever reason). This will cause a lot of frustration.
You could setup a Cloud Http Task to trigger the deletion of that account after a certain time (e.g. a few hours) of the account not being registered.
If they do register in time, you can cancel the task before it runs.
I don't want to authenticate the user via their phone number that I have already done by using their email id and password. I just want to confirm that they are entering a valid phone number by sending them an OTP and verifying it. All the solutions that I have looked up go on to straight up authenticate the user. I am using firestore as my database.
Firebase allows you to link multiple authentication methods. You can find more details at https://firebase.google.com/docs/auth/web/account-linking
So, once the user is authenticated with email/password, initiate phone number authentication. When you get AuthCredential link it to current firebase user as mentioned in above link.
Other solutions would be to use external SMS gateway like twilio and doing phone number verification on your own. Which isn't required for your use case. In case you still want to try this, there is a free SMS gateway (which uses your own mobile number to send SMS) at https://www.sg.yagnyam.in/.
I have got the firebase.auth().signInWithPhoneNumber(number, appVerifier) to work nicely, but realized something that I didn't before. As soon as you put in the sms verification code it creates a whole other user under the phone auth, which makes since.
What I want to do however is just allow my current email/password users to add a phone number and then before they sign in have to go through a process of getting a verification sms code and put it in and only then through the success block log that user in.
My current solution is to add the phone number to the email/password account. Go through the phone auth process and if successful log out the phone auth account and then log the email/password account in with the same phone number. This sounds like a bad idea in the long run however, so is there a sms verification without authentication in firebase?
What you can do is to link your email/password user with a phone number credential using linkWithPhoneNumber method of User.
Check out the docs here: https://firebase.google.com/docs/auth/web/phone-auth
Linking to a phone number credential requires the user to verify their phone number with SMS code.
That case does sound like a bad idea.
Unfortunately, Firebase doesn't yet provide SMS verifications without Phone Auth. You'll have to look for a different way to do that.
I have built a chat bot for WeChat and connected it to a WeChat official page on https://admin.wechat.com
However, I can no longer login to the admin website. It gives invalid user/password, but I know they are correct. When I use the same user/password to check the account status it says the account is active.
Also if I try to reset the password it gives me the error "Server Busy", the same all week. It was working a few weeks ago.
I also tried login on https://mp.weixin.qq.com but I think you need a China account to connect to it?
Can anyone with an official WeChat account check if they can sign in?
This is a login page which works for me right now: https://mp.weixin.qq.com/debug/cgi-bin/sandbox?t=sandbox/login
It is for sandbox mode only, if you have official WeChat account, and wish to run your bot in production with full capabiities ensbled, you need to login differently.
You don't need a Chinese account to login to weixin sandbox.