Comments (4)
@lmammino 🤔 🤝
from middy.
Thanks @vladgolubev, that's probably a good idea. I think we have to make this middleware slightly smarter to handle this case (and more).
The original idea of having it in the after
phase was to make sure that the user does not override it by mistake, but we didn't think it might have affected error cases.
One idea could be to set the callbackWaitsForEmptyEventLoop
to false in both phases (before
and after
) and probably we should do it also in the onError
phase.
Also, we could assume the before
phase is mandatory and the after
and onError
phases could be switched off through config.
Using these ideas, this can be a first draft of the new version:
module.exports = (opts) => {
const defaults = {
runOnAfter: true,
runOnError: true
}
const options = Object.assign({}, defaults, opts)
const setFlag = (handler, next) => {
handler.context.callbackWaitsForEmptyEventLoop = false
next()
}
return ({
before: setFlag,
after: options.runOnAfter ? setFlag : undefined,
onError: options.runOnError ? setFlag : undefined
})
}
@dkatavic, what do you think?
from middy.
That makes totally sense @dkatavic. Thanks!
Probably we should also set more efficient defaults like:
const defaults = {
runOnBefore: true,
runOnAfter: false, // user code (or other middlewares) might reset the flag, but no extra function is executed
runOnError: false // user code (or other middlewares) might reset the flag, but no extra function is executed
}
@vladgolubev, do you want to take care of submitting a PR with this? 😉
from middy.
Good catch @vladgolubev . I like the draft @lmammino , just I would like to make the middleware as configurable as possible, so can we add runOnBefore
option too?
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