Assert a thunk or generator's timeout co-style
Assert that a thunk or generator takes less than a certain amount of time. Note that it does not stop the thunk or generator from finish executing.
To set the timeout of all the downstream middleware, you can do the following:
appuseyield assertTimeoutnext '5 seconds'
However, you generally don't want to do this. You only want to set a timeout when the client takes too long to do something, not you. Specifically, you should set a timeout only on the client sending a request:
appusevar buffer = yield assertTimeoutthisrequestbuffer '5 seconds'
If you want to customize or handle the error yourself:
appusetryvar buffer = yield assertTimeoutthisrequestbuffer '5 seconds'catch errif errstatus === 408// assertTimeout's errors will have err.status = 408// let's make a new error with a custom messageerr = 'you took too long to upload'errstatus = 408// rethrow the errorthrow erryield next
fn- a thunk, generator, or generator function
timeout- timeout in milliseconds integer or a string
done- optional callback called only when
fnfinishes executing after the timeout error is thrown
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Copyright (c) 2013 Jonathan Ong email@example.com
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