Additional Notes
How would you explain a common mistake when using flatMap() in reactive streams in an interview?
Track: Java
Topic: Project Reactor
Focus: Functional Pipelines (flatMap)
Java: Functional Pipelines (flatMap)
Answer
Blocking inside flatMap() is a common mistake.
A frequent error is using blocking calls inside flatMap(), which negates its non-blocking benefits. For example, calling a blocking database operation directly within flatMap() can lead to performance issues. Instead, use non-blocking APIs or defer blocking operations to separate threads.
A frequent error is using blocking calls inside flatMap(), which negates its non-blocking benefits. For example, calling a blocking database operation directly within flatMap() can lead to performance issues. Instead, use non-blocking APIs or defer blocking operations to separate threads.
Topics: Functional Pipelines (flatMap) Java Project Reactor