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:
app.use(function* (next) {
yield assertTimeout(next, '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:
app.use(function* (next) {
var buffer = yield assertTimeout(this.request.buffer(), '5 seconds')
})If you want to customize or handle the error yourself:
app.use(function* (next) {
try {
var buffer = yield assertTimeout(this.request.buffer(), '5 seconds')
} catch (err) {
if (err.status === 408) {
// assertTimeout's errors will have err.status = 408
// let's make a new error with a custom message
err = new Error('you took too long to upload')
err.status = 408
}
// rethrow the error
throw err
}
yield next
})fn- a thunk, generator, or generator functiontimeout- timeout in milliseconds integer or a stringdone- optional callback called only whenfnfinishes executing after the timeout error is thrown
The MIT License (MIT)
Copyright (c) 2013 Jonathan Ong [email protected]
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