Package billingPeriod "value" incorrect: seems to be iso8601-1 instead of iso8601-2

Question

I seem to be getting an incorrect value for my free trial billingPeriod on Android.

I thought it would be good to ask here whether I’m understanding this correctly and/or whether to open an issue on GitrHub.

I’ve set the trial period to 90 days in the Play Console, but in the returned package I’m getting 86 days.
Looking at the iso8601 value, 84 days corresponds to 12 weeks so it looks like it’s ignoring the 6D.
I’ve just learned that iso8601-1 doesn’t allow any other values if W(eeks) is specified but iso8601-2 does.

It seems like, although P12W6D is correct (84 days + 6 days = 90 days) the ‘value’ field is showing an iso8601-1 interpretation (84 days only) rather than iso8601-2.

Could this be a bug?

Best answer by Cesar

`P12W6D` is coming directly from Google, and I just created a quick test to reproduce it and can see how our ISO8601 Period parsing code is wrong and it’s parsing it as 12 weeks, as it doesn’t expect a mix of weeks and days.

I just created this GitHub issue https://github.com/RevenueCat/purchases-android/issues/1753 to keep track of it

Cesar · Accepted Answer

`P12W6D` is coming directly from Google, and I just created a quick test to reproduce it and can see how our ISO8601 Period parsing code is wrong and it’s parsing it as 12 weeks, as it doesn’t expect a mix of weeks and days.

I just created this GitHub issue https://github.com/RevenueCat/purchases-android/issues/1753 to keep track of it

davidcarboni · Answer

Fab, thank you!I’ve put temporary workaround code in for now so I’ll take that out once this comes through.

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