[aallkkaa]

For my LibSpellName2SID addons, I'm looking for a way to retrieve all the Azerite Essences' spells, introduced in WoW 8.2.0, from the servers.

I know I can get a list of all Azerite Essences ("items") with the function C_AzeriteEssence.GetEssences().
But what info from the resulting list, an with what functions, can I retrieve the Major and Minor spells for each rank?

For example, with this information, retrieved with C_AzeriteEssence.GetEssences():

{
    valid=true,
    name="The Crucible of Flame",
    ID=12,
    icon=3015740,
    unlocked=true,
    rank=1
  },

How do I get the following information (preferably not only for Rank 1, but for all four):

{
["Concentrated Flame"] = 295373,   -- Major
["Ancient Flame"] = 295365,   -- Minor
},

?