REST API

NxQBO Driver Link brings native FireDAC support for QuickBooks Online to Delphi and C++Builder. Query QBO with standard TFDConnection/TFDQuery/ TFDTable components instead of hand-rolled REST calls. A built-in SQL translation engine minimizes API consumption automatically — one query can return up to 1,000 records for a single API call.

The Google Firebase Cloud Database is used in many mobile and web applications worldwide and there are well-documented libraries for many languages and platforms. For Delphi, the cross-platform library FB4D supports the Firebase Realtime Database, the Firestore Database, the Firebase Storage (for file storage), and Firebase Functions (for calling server functions). For authentication, FB4D currently supports email/password authentication and anonymous login. The library builds on the Firebase REST-API and provides all functionality with synchronous and asynchronous methods for the usage within GUI application, services, and background threads. Both frameworks VCL and Firemonkey are supported. The library is a pure source code library and relies on class interfaces.