25 lines
703 B
Nim
25 lines
703 B
Nim
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## Make two http requests concurrently and output the one that wins
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import chronos
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import ./httpget
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proc twoGets() {.async.} =
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let
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futs = @[
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# Both pages will start downloading concurrently...
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httpget.retrievePage("https://duckduckgo.com/?q=chronos"),
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httpget.retrievePage("https://www.google.fr/search?q=chronos")
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]
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# Wait for at least one request to finish..
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let winner = await one(futs)
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# ..and cancel the others since we won't need them
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for fut in futs:
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# Trying to cancel an already-finished future is harmless
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fut.cancelSoon()
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# An exception could be raised here if the winning request failed!
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echo "Result: ", winner.read()
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waitFor(twoGets())
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