Reactive programming: disadvantages and when it is appropriate?

Reactive programming allows building asynchronous, non-blocking, and scalable applications that process data streams and events.

Cons:

• Complexity in understanding and debugging code due to asynchrony and operator chains.
• Steep learning curve for the team.
• Possible issues with state management and error handling.
• Not always justified for simple or synchronous tasks.

Reactive programming is advisable when:

• You need to process large volumes of events or data in real-time.
• High scalability and responsiveness are required.
• The system should efficiently utilize resources, avoiding blocking.

Example: building high-load servers, UI with dynamic updates, integration with streaming data sources.