Prebid core: fix exception in requestBids introduced by #9106
#9194
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This reverts commit 64aff9b.
|
Pr updated with an actual fix. |
dgirardi
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requestBids (#9106)"requestBids introduced by #9106
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muuki88
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Nov 3, 2022
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| req.defer = defer({promiseFactory: (r) => new Promise(r)}) | ||
| delegate.call(this, req); | ||
| return req.defer.promise; |
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Maybe a few comments why this is necessary would be helpful.
As someone only looking at bid adapters mostly the fun-hook framework and the custom promise implementation this code is non-obivous why it's there.
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If you're asking about the reason for fun-hooks or the custom promise:
- fun-hooks is basically a plugin system (to the author: sorry if I'm oversimplifying this). if we have 5 modules that may be loaded in a random combination and order, and all plug into the same code path, fun-hook solves the problem of orchestrating those. I can't answer why we are using that over something else.
- the custom promise -
A version of Promise that runs callbacks synchronously when it can- came about because of this discussion.
As for this code specifically, I tried clarifying it in the comments - it boils down to idiosyncrasies of fun-hooks.
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Thanks for the clarification 🤗
| @@ -1665,7 +1677,7 @@ describe('Unit: Prebid Module', function () { | |||
| sinon.assert.match(bids[bid.adUnitCode].bids[0], bid) | |||
| done(); | |||
| }); | |||
| completeAuction([bid]); | |||
| setTimeout(() => completeAuction([bid])); | |||
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also a small comment here why wrapping in setTimeout is required here
| @@ -622,15 +623,15 @@ $$PREBID_GLOBAL$$.removeAdUnit = function (adUnitCode) { | |||
| * @alias module:pbjs.requestBids | |||
| */ | |||
| $$PREBID_GLOBAL$$.requestBids = (function() { | |||
| const delegate = hook('sync', function ({ bidsBackHandler, timeout, adUnits, adUnitCodes, labels, auctionId, ttlBuffer, ortb2, metrics } = {}) { | |||
| const delegate = hook('async', function ({ bidsBackHandler, timeout, adUnits, adUnitCodes, labels, auctionId, ttlBuffer, ortb2, metrics, defer } = {}) { | |||
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When I discovered the issue a little more comments would have helped what the intention of this delegate method was or what it is supposed to do.
ChrisHuie
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Nov 3, 2022
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…prebid#9194) * Revert "Prebid core: return a promise from `requestBids` (prebid#9106)" This reverts commit 64aff9b. * Revert "Revert "Prebid core: return a promise from `requestBids` (prebid#9106)"" This reverts commit bf5ee30. * Prebid core: fix exception in `requestBids` introduced by prebid#9106 * Add comments
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…prebid#9194) * Revert "Prebid core: return a promise from `requestBids` (prebid#9106)" This reverts commit 64aff9b. * Revert "Revert "Prebid core: return a promise from `requestBids` (prebid#9106)"" This reverts commit bf5ee30. * Prebid core: fix exception in `requestBids` introduced by prebid#9106 * Add comments
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May 23, 2023
…prebid#9194) * Revert "Prebid core: return a promise from `requestBids` (prebid#9106)" This reverts commit 64aff9b. * Revert "Revert "Prebid core: return a promise from `requestBids` (prebid#9106)"" This reverts commit bf5ee30. * Prebid core: fix exception in `requestBids` introduced by prebid#9106 * Add comments
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Type of change
Description of change
Fix a bug introduced by #9106: if a module such as userId needs to delay the auction (
auctionDelay > 0), it can cause hooks to run out of order and error out.Fixes #9191