Kotlin SDK examples

Code examples for the DFNS Kotlin SDK on Android, including passkey registration, login, signing, and delegated wallet integration.

DfnsDemo

A demo application using the SDK can be found on GitHub.

This demo application is to be used in conjunction with the Typescript server in delegated registration and login tutorial. It is a replacement for the Android section over there, you should read and execute all instruction written above this section to get this demo running.

Configuration

In the ./app/src/main/java/co/dfns/sdk/tutorial/mobile/Constants.kt set the following values,

• SERVER_BASE_URL: base url of the server you launched (eg http://localhost:8000, or if using ngrok, the public ngrok url)
• PASSKEY_RELYING_PARTY_ID: the passkey relying party id, aka, the domain on which the above server is served (Read more here). If serving the server on http://localhost:8000, then set it to localhost. If serving the server through ngrok (eg https://d0d7-31-217-63-194.ngrok-free.app), then set it to ngrok-free.app. In general, we advise you use the root domain (eg. acme.com, not app.acme.com) for more passkey flexibility (so that passkey is re-usable on subdomains).
• PASSKEY_RELYING_PARTY_NAME: A string representing the name of the relying party, aka, your company name (e.g. “Acme”). The user will be presented with that name when creating or using a passkey.