Passkey Flex Android SDK core functions

PassageFlex.Passkey.authenticate()

Parameters

PropertyData TypeDescription
transactionIdString?Retrieve from Passage Flex API.
activityActivityThe activity in which to display passkey manager prompts

Returns

String

Authenticate the user. Returns a nonce.

There are two ways to authenticate users with passkeys. Review the Authenticate Implementation Guide to learn more.

With an external identifier

Authenticate the user using a transaction ID retrieved from the Passage API using a Passkey Flex backend SDK. This requires the user to enter a external identifier (email or username) to authenticate.

Example

val nonce = PassageFlex.Passkey.authenticate(transactionId, activity)

Without an external identifier

Authenticate the user using discoverable credentials. The user is not required to type in any identifier. A typical UX for this flow is "one-click" authentication using a button. The user will be provided all passkey options for the app on the device.

Example

val nonce = PassageFlex.Passkey.authenticate(null, activity)

PassageFlex.Passkey.register()

Parameters

PropertyData TypeDescription
transactionIdStringRetrieve from Passage Flex API.
activityActivityThe activity in which to display passkey manager prompts

Returns

String

Register the user using the transaction ID you retrieve from the Passage Flex API using a Passage Flex backend SDK. You can use the nonce in a backend SDK to verify that Passage Flex has registered the user successfully.

Example

val nonce = PassageFlex.Passkey.register(transactionId, activity)