I'm trying to send a verification email without having a firebaseUser, is it possible ?
I know i can do it with user.sendEmailVerification() method but can i do it just by giving an email from a textfield ?
Based on what I knew and what I've read from the documentation, it looks like it's not possible to do this. A Firebase user, a.k.a an user authenticated within Firebase platform is required if you want to send email verification that uses Firebase Email Vetification service.
Well, do not lose hope since there are plenty workarounds to do this. What I would do to achieve this is to use Firebase Cloud Functions to create serverless API platform. I connect Firebase Cloud Functions with Firebase Admin SDK (which also has access to other Firebase services if I am not mistaken).
I send an email using some kind of email service providers such as SendGrid to designated email address (which the app got from user's inputted email) and provide a link to verify there (in the e-mail that sent to designated email address). Then, in the cloud functions, you leverage Firebase Admin SDK to change verification status.
This approach is flexible though, as it can be used to verify a user not only with Firebase Authentication.
Hope it helps. If it's not clear for you, just comment.
Happy coding.
EDIT: After thoroughly read your question again, I realized that my answer is not fully correct. Somehow you still need a specific user to be added within Firebase Authentication database, which you would not want to do manually and let your app do so instead. Perhaps you can use Firebase Admin SDK in this matter. You can read official Firebase documentation for more information regarding Admin SDK.
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I've been trying to create a contact form for my flutter project. The contact form is composed of two steps. First, the user provides their email and then describes their issue. Once the user presses submit, I want to receive an email on my end. I've look at several packages like mailer and flutter_email_sender. However, they don't seem to offer good solutions; mailer requires that I provide the password to my email address in my code (opening up the possibility for vulnerabilities). Flutter_email_sender simply opens up an email app on the phone.
Recently I've come across the perfect solution, Firebase's new extension Trigger Email. Although the extension seems promising, I can't find any resources outlining proper implementation of Trigger Email in Flutter.
Can you please provide an example of how Trigger Email can be implemented in Flutter project?
From the documentation of the extension:
Use this extension to render and send emails that contain the information from documents added to a specified Cloud Firestore collection.
So to send an email you write a document to Cloud Firestore. For examples of writing to Cloud Firestore from Flutter, see the FlutterFire documentation for examples of this.
I have a Firebase project, which I'm currently using with android. I need to programmatically fetch details of the users authorized along with the UID, Email, etc. Exactly the way it is shown in firebase (with the search), this web portal will be given to the vendor or the person using it to verify the user's authenticity.
I've attached the screenshot from Firebase, I'm hoping to replicate it the same way with the search. If this is possible, how do I go about doing this?
It's not possible to list users from an Android app, using only the Firebase Authentication SDK. You can list users using the Firebase Admin SDK, but that can only be run on a backend you control, using service account credentials for your project.
It might be easier if you store user info in a database, to be queried by client code, rather than try to have your app try to access auth data directly.
I'm walking through the steps described here and upon sending the verification email to myself, I get an email in my inbox from noreply#myappname.firebaseapp.com.
For other email-based auth steps, I can customize the sender name and email address directly from the Firebase console:
Am I missing something that could help me with Email Link sign-in or do I need to go through the process of modifying the SMTP settings in my app's console?
I noticed the same behavior / restriction in the Firebase console. Considering that the underlying .firebase.auth().createUserWithEmailAndPassword method could write your new user to firestore, i guess you could use firebase function to trigger a custom email via sendGrid, for example, and you could flesh out a custom workflow from there.
This article, Email via Firebase Firestore Cloud Function Triggers includes the code to trigger custom emails and could be adapted to your needs. I imagine the trick will be to get the .emailValidated property set to true. It may be as easy as switching the boolean - i don't know.
All in all, it seems like a lot of work just to get a customized validation email though. I would recommend you just stick with what they provide.
I have some user data stored in Firebase in users/userID/data
I'm using Dialogflow to recognize for example the following intent:
retrieve my email
which triggers a webhook and passes as parameter email, which is the data the user wants to retrieve. How to I pass the firebase userID? I guess I need to implement some kind of logging for the Google Assistant, but I cannot find how can I link the Firebase user account to google actions and how would I get this firebase userID
Is there a standard or recommend way to achieve this?
There is no pre-built solution for this right now.
You will need to implement Account Linking with the Google Assistant.It was done this way to give you, and your users, maximum flexibility. You'll be able to authenticate them using a variety of methods, not just Google Auth, and users are able to use a Google identity for you that may be different than the one they use for the Assistant. Account Linking will associate them without revealing to you which account they use on the Assistant.
This means creating an OAuth server that lets users log in using their Firebase account and issuing tokens to the Assistant. Google does provide some information about the procedure you should follow when creating your OAuth server, and you should be able to create this using Firebase Hosting and Firebase Cloud Functions.
Then, each time the Assistant calls your action, it will send the tokens back to you. You would use this token to determine the Firebase userid and then can look them up in the database.
I'm building an app for an online course, but I like to take their skeleton and make it better to add to my portfolio, adding features. They're teaching Firebase in this section and building a chat app... When I see their video they use "1#2.com" as their email, which doesn't seem like a real email, so I tried it in mine, and I noticed that Firebase is allowing me to use a random assortment of whatever, so an obviously not real email "ajflkdsajffadjslfj123412djflakjdf#hotmail.com" to register. I've skimmed through the firebase docs and didn't see anything that says how to check if the email is actually an email.
Technically that could be a valid mail, so there is nothing Firebase can do to check every mails if they are valid or not. What you could do though is to send an email verification to the user and if they verify their account then they can use your application.
Email Verification in Firebase Auth documentation for that can be found here.