What’s the correct way to handle errors with streams? I already know there’s an ‘error’ event you can listen on, but I want to know some more details about arbitrarily complicated situations.
For starters, what do you do when you want to do a simple pipe chain:
input.pipe(transformA).pipe(transformB).pipe(transformC)...
And how do you properly create one of those transforms so that errors are handled correctly?
More related questions:
- when an error happens, what happens to the ‘end’ event? Does it never get fired? Does it sometimes get fired? Does it depend on the transform/stream? What are the standards here?
- are there any mechanisms for propogating errors through the pipes?
- do domains solve this problem effectively? Examples would be nice.
- do errors that come out of ‘error’ events have stack traces? Sometimes? Never? is there a way to get one from them?
