[wookiefriseur]

You could store the racialPatternId in a variable, because you never switch characters once the AddOn is loaded.

Something like this:

local racialId
 local function getRacialId() 
  if racialId then return racialId end
 
 local characterId = GetCurrentCharacterId()
  for i = 1, GetNumCharacters() do
    local _, _, _, _, raceId, _, id, _ = GetCharacterInfo(i)
    if (characterId == id) then
      return raceId
    end
 end
end

Regarding LLC, don't know but looks like you have to register your AddOn with LibLazyCrafting and then you get a function table that you can use. Something like:

local autocraft = true
 
-- you could use some function, that handles the crafting results and stuff, but nil should be fine for now
local callbackfunction = nil
 
local LLC = LibLazyCrafting:AddRequestingAddon(LazyCraftingCertification.name, autocraft, callbackfunction )
 
-- and then use it like
LLC.CraftSmithingItemByLevel(7, false, 1, getRacialId(), 1, false, CRAFTING_TYPE_BLACKSMITHING, 0, 1, true)

Careful, didn't test it.