Bag ID

[Rhyono]

How do the bag IDs work?

I understood these:
BAG_BACKPACK - shows items in that toon's bag.
BAG_BANK - shows items in the bank.
BAG_WORN - shows items that toon is wearing.

But didn't know what to do with these:
BAG_BUYBACK - I assumed this would show items that can be bought back but I don't know how to make it work.
BAG_GUILDBANK - I assumd this would show items in the guild bank, but I don't know how you'd choose which guild or how to make it work. I tried opening the guild bank while using it but that didn't work.
BAG_VIRTUAL - Not sure what this does.

Bonus question: what is the craft bag considered and how is its data accessed?

[Dolgubon]

BAG_VIRTUAL is the craft bag. You can use the following to find items in it. Note that data is a table for the item. data.name will be the name of it, data.slotIndex is where to find it. If you need something else, do some output in chat.
if SHARED_INVENTORY.bagCache[BAG_VIRTUAL] then
for index, data in pairs(SHARED_INVENTORY.bagCache[BAG_VIRTUAL])do
if isItemYouWant(data) then
return BAG_VIRTUAL, data.slotIndex
end
end
end


The guildbank and buyback ones I'm not sure about. You may want to try going to a merchant for the buyback one, and possibly opening the buyback tab.

[Rhyono]

I had wondered (but I don't have the craft bag so I couldn't test it), so thanks!

[Baertram]

BAG_GUILDBANK is the bag for the stuff stored in your guildbank.
To access the different guildbanks you need to select one.
If I remember right BAG_GUILDBANK will only be there if you are talking to a bank NPC and the guild bank is opened.

BAG_BUYBACK si teh "buy back" bag at the vendor.
If I remember right it's accessible only if you talk to a vendor. It'll update with the last sold items until you logout.