Question 1

How does multistream compare to combined-stream?

Accepted Answer

Multistream is a streams3-compatible alternative to combined-stream, offering better integration with modern Node.js streams and features like lazy creation. Combined-stream might have legacy API quirks, but multistream is preferred for its simplicity and reliability in streams3 environments.

Question 2

How to handle errors in multistream?

Accepted Answer

Multistream does not provide built-in error handling, so you need to attach error listeners to individual streams or the multistream instance. Implement custom logic to catch errors, clean up resources, and optionally skip or retry streams to maintain pipeline integrity.

Question 3

Can multistream handle object mode streams?

Accepted Answer

Yes, multistream includes MultiStream.obj() specifically for object-mode streams, enabling sequential emission of streams that deal with objects instead of buffers or strings. This is useful for data processing pipelines involving structured data.

Question 4

What happens if a stream in multistream doesn't end?

Accepted Answer

If a stream hangs or fails to emit 'end', the next stream won't start, potentially blocking the entire pipeline. You must ensure streams close properly or implement external timeouts and error handling to prevent deadlocks.

Question 5

Is multistream suitable for real-time data processing?

Accepted Answer

Multistream is designed for sequential concatenation, making it less ideal for real-time processing that requires parallel streams or low-latency interleaving. It's better suited for batch operations like file merging or data aggregation.

Question 6

How to use multistream with async/await in Node.js?

Accepted Answer

You can wrap multistream in a promise or use it with callbacks as shown in the async factory example. For modern async/await patterns, adapt the factory function to return a promise, but note that multistream's core API is callback-based for compatibility.

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