Google Pay can be setup as an in-app payment option using the UPI intent mechanism. This mechanism allows Google Pay to participate as an app when the merchant app triggers an in-app intent.
Prerequisites
- Business channels must accept UPI and be verified merchants by NPCI/banks.
- Ensure that you have the details required to accept payments using UPI ID with your bank.
- Ensure that you have all of the required APIs from your bank to check the status of a payment.
- Note that every transaction should use a unique transaction ID.
Android 11 requirements
Merchants targeting API level 30+ and running on Android 11 will only be able to see a few apps. For more details, see here.
Merchants have to make changes to their manifest files in order to access a set of other installed apps on the device that they intend to access. For more details, see here.
To include Google Pay app, include the package name in <package> elements
inside the <queries> element.
<manifest package="com.example.merchantapp">
<queries>
<package android:name="com.google.android.apps.nbu.paisa.user" />
</queries>
</manifest>