Here I explain how to implement the concept of Email OTP verification Android Studio tool using Java programming language. Actually Signup form is very mandatory for every application, so for that we have to add security layers for verify the users. For that only we have to approach the concept for sending OTP (One Time Password) based verification from user authorized mail address.

Moreover Mobile based OTP also very secured and most of the users are like phone number processing steps. But that we have to pay some amount for third party providers like Fast2SMS, TextGuru etc. In the email verification method don’t need to pay the amount for some limitations, after that we have to upgrade in premium plan. So I think it’s very convenient when compared to SMS gateway providers.

Create Project – Email OTP verification Android Studio

Okay let’s see the steps for how create and implement the Email based OTP verification & validation for application. And here I covered only this method, so I hope already you are created Signup page form like user Email address, Phone number and other required information. Because then only able to integrate with Google Firebase database.

Following Steps

1. Go to one the official link of Google Firebase
2. Then click Add Project layout to create new project for your android application
3. And then follow onscreen step to complete the project creations steps.
4. Hereafter you have to enter your app package id, because then only able integrate our data into server side.
5. Before that you have to choose the platforms such as Android, Web, Flutter.
6. After that we have to generate SHA key and paste into Google Firebase section.
7. Need to download JSON file where we stored the key details for getting data from server side.

Already we are published one article for how verify OTP via mobile number. If you are looking for phone based verification then you can check above mentioned articles.

Authentication Email OTP Android

I hope you are completed above steps because those are very easy to do in your side. And the next step is we have to add authentication access like whether it’s email based or Mobile number based. You can also implement mobile based OTP here but the recommended way to integrate with SMS gateway providers.

Initially you have to add some demo email address and password for accessing your own purpose. There is no need to raise new OTP for further verification. This features only for admin who develop the application and able to check the homepage screens.

Integration Java Code

Above steps are helps to implement server side and now we have to starts for how connect the Java code into Google Firebase database. After that only our data will pass into server side and make the request response in client to server end.

Above source code for making Login & Registration form with help of Firebase Database.