This Hedera Java Sample Code shows how to create a file creation transaction and get the account ID to return a receipt if successful. This also shows the abstraction required to append data to the newly created file.
Google is promoting the fact that beginning in Android P, developers have access to a BiometricPrompt API that allows them to integrate biometric authentication into their apps. The BiometricPrompt API only exposes strong biometric modalities, which are those that are less easily bypassed.
Burner has launched the new Burner REST API with OAuth 2.0 support which provides access to Burner platform functionality such as sending and receiving messages, and text auto-responses. Developers can use the Burner REST API to integrate Burner platform capabilities with third-party applications.