#twafiq_terminal-operations-check
stable skyBOT
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upbeat flame
Hello! It sounds like you need to perform a check to confirm the current operation is complete before starting a new one.
upbeat flame
It could be any operation that's currently in progress.
west plaza
how do i check for the operation completion/ make it sequential no parallelism and avoid overlapping
upbeat flame
I don't think there's a way you can guarantee there won't be an operation in progress since your customer may interact with the reader and begin an operation at any time. Getting the error you mentioned in your original message is how you can tell an operation is in progress.
west plaza
so should i just block the operation if this happens
upbeat flame
You could block or you could retry after a short delay, it depends on what works best for your integration.
I will say that it might be better to wait and start the Terminal payment process until after you know the final amount, rather than updating it a lot before that.
west plaza
well the thing is, this is supposed to be a semi-attended payment kiosk, where it is always ready to collect payment but can be changed at any time by the user
upbeat flame
Right, but you can handle changes to the amount on your end, in your UI, and then when the amount is finalized only then start the Terminal payment collection process.
west plaza
ok thansk
stable skyBOT