Microsoft Bot Framework Direct Line JS Client

This package provides a client library for the Microsoft Bot Framework Direct Line 3.0 protocol, enabling JavaScript applications to communicate directly with bots. It is an official Microsoft-supported library, used internally by components like BotFramework-WebChat, the Bot Framework Emulator, and Azure Bot Service. The current stable version is 0.15.8. The library primarily uses RxJS Observables for handling asynchronous operations, a key differentiator from Promise-based alternatives. While considered largely complete for its protocol, updates are typically limited to dependency bumps, bug fixes, and minor enhancements rather than new feature development, indicating a maintenance-focused release cadence. It fully supports TypeScript.