TextKey's JAVA library allows you to use REST API calls server-side from a Java backend. TextKey is an omni-factor authentication API that uses seven-factors of authentication to provide security for devices ranging from mobile to electronic door locks. TextKey works through using SMS service, unique code, cellular number, UDID, a single use URL, and an optional pin. TextKey uses Rest with a JSON response and SOAP. TextKey is free for ten users, and available for a monthly charge per user thereafter.
OAuth Newbies can find it tricky initially. In this tutorial you’ll learn how to get started with OAuth 2.0 while avoiding all the fiddly parts around handling tokens. The folks over at Insomnia will show you how to authenticate an API client for the GitHub API with OAuth 2.0 and the Insomnia app.
Despite the fact that the costs associated with hacking and data breaches have arguably never been higher, recent API-related security incidents involving large companies, T-Mobile and Accenture, highlight the fact that basic API security best practices are still often not being adhered to.