> Is there a law mandating realtime reporting, or something
Not real time in WA, but all records are public and reported fairly consistently. See https://www.topshelfdata.com for an example of that.
> or are there just limited number of POS providers and they all have realtime API(s)?
This is Headset who is probably the largest retail POS provider (amongst other offerings on the producer/processor side and more) for legal marijuana sales. I'm assuming the data presented here is exclusively from their POS platform. I don't know of any public sources for real time sales data.
> I bet the dashboard doesn't have Johnny from my street corner's transaction...
Yes I'd also bet Johnny doesn't report his sales to a central database/platform.
Not real time in WA, but all records are public and reported fairly consistently. See https://www.topshelfdata.com for an example of that.
> or are there just limited number of POS providers and they all have realtime API(s)?
This is Headset who is probably the largest retail POS provider (amongst other offerings on the producer/processor side and more) for legal marijuana sales. I'm assuming the data presented here is exclusively from their POS platform. I don't know of any public sources for real time sales data.
> I bet the dashboard doesn't have Johnny from my street corner's transaction...
Yes I'd also bet Johnny doesn't report his sales to a central database/platform.