Crate

futures-util

Stream and Future combinators from the futures ecosystem.

What it is

futures-util provides StreamExt, FutureExt, and associated combinators — map, filter, chain, merge, buffered, and more. It is a lighter-weight subset of the futures crate, giving libraries access to async utilities without pulling in the full futures dependency.

Why it is commonly used

Used in async code that manipulates streams and futures — especially in libraries that want a smaller transitive dependency footprint than the full futures crate while still offering combinator-style async APIs.

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536
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