Are events queued? : GameSparks

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Daniel Chipman

started a topic about 5 years ago

Are event requests queued, or can they get processed simultaneously?

I have CloudCode that conditionally operates on player data. If two logEvent requests fire and operate at the same time on the same data I could have a race condition.

Customer Support

said about 5 years ago

Hi Daniel,

Yes the requests sent by the SDKs are queued and sent in order. Let us know if you have any further questions.

Regards,

Liam

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Daniel Chipman

said about 5 years ago

In our case we aren't using the SDK to send requests, we are using the REST API. To be more specific, the send order is irrelevant as the requests can be sent by multiple sources. Are the requests upon being received by GameSparks servers queued and then processed in order of reception?

Thanks,

- Daniel

Customer Support

said about 5 years ago

Hi Daniel,

No I don't believe they are. The SDK will handle the queuing and sending of events but as you are using the REST API and not an SDK there is no control over this.

Regards,

Liam

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Daniel Chipman

said about 5 years ago

Thanks for getting back to me on this! How do developers avoid race conditions in cloud code then?

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Aleksey Polesskiy

said about 5 years ago

To be more specific, do you support (or plan to support) conditional puts in your NoSql API? I suppose we can implement optimistic locking/versioning[1] on our end, but it would be better to have a server-side guarantee.

[1] https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DynamoDBMapper.OptimisticLocking.html

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