API UnitAura

This function was introduced in Patch 3.0. It will serve as an all-in-one solution for querying unit buffs and debuffs. UnitBuff and UnitDebuff will serve as aliases with built-in harmful/helpful filters.

Usage: name, rank, icon, count, debuffType, duration, expirationTime, unitCaster, isStealable, shouldConsolidate, spellId = UnitAura("unit", index or "name"[, "rank"[, "filter"]])

If the second parameter is a string, then the third parameter is the rank (which can be nil)  Either use: unit, index, filter or unit, name, rank, filter

Examples: UnitAura("target", 1) -- First buff on target UnitAura("target", 1, "PLAYER|HARMFUL") -- First debuff, cast by the player, on the target UnitAura("player", "Lightning Shield") -- first instance of "Lightning Shield" on the player UnitAura("player", "Lightning Shield", nil, "PLAYER|HELPFUL") -- first instance of "Lightning Shield" on the player, cast by the player UnitAura("player", "Lightning Shield", "Rank 2") -- first instance of "Lightning Shield", rank 2, on the player

Arguments

 * unit : String - The unit you want debuff information for.
 * index : Number - The index of the debuff to retrieve info for. Starts at 1, maximum 40.
 * filter : This parameter can be any of "HELPFUL", "HARMFUL", "PLAYER", "RAID", "CANCELABLE", "NOT_CANCELABLE". You can also specify several filters separated by a | or space character to chain multiple filters together (e.g. "HELPFUL|RAID" or "HELPFUL RAID" == helpful buffs that you can cast on your raid). By default UnitAura has "HELPFUL" as an implicit filter - you cannot get back BOTH helpful and harmful at the same time. Neither "HELPFUL" or "HARMFUL" have meaning for UnitBuff/UnitDebuff, and will be ignored.

Returns

 * name : String - The name of the spell or effect of the debuff. This is the name shown in yellow when you mouse over the icon.
 * rank : String - The rank of the spell or effect that caused the debuff. Returns "" if there is no rank.
 * icon : String - The interface path to the aura's icon texture.
 * count : Number - The number of times the debuff has been applied to the target. Returns 0 for any debuff which doesn't stack. ( Changed in 1.11 ).
 * debuffType : String - The type of the debuff: Magic, Disease, Poison, Curse, or nothing for those with out a type.
 * duration : Number - The full duration of the debuff in seconds;
 * expirationTime : Number - The time in seconds (comparable to GetTime) when the aura will expire.
 * unitCaster : String - unitId reference to the unit that casted the buff/debuff.
 * isStealable : Boolean - 1 or nil depending on if the aura can be spellstolen.
 * shouldConsolidate : Boolean - 1 or nil depending on if the default Blizzard UI should put the aura into the "consolidated" box of buffs.
 * spellId : Number - the spellId of the aura.

Macro Options:
1. Prints the name of any stealable buffs on the current target, or a notice if nothing is stealable: /run local y=0;for i=1,40 do local n,_,_,_,_,_,_,_,isStealable=UnitAura("target",i);if isStealable==1 then print(n.." on target, steal it!")y=1;end end if y~=1 then print("No stealable buffs.")end

History

 * Patch 4.0 removed the return values "canApplyAura" and "isBossDebuff".
 * Patch 3.0 combined UnitDebuff and UnitBuff into this command.
 * Patch 3.1 changed "isMine" to "unitCaster". It is now possible for addons to retrieve the unitId that cast the buff/debuff.
 * Patch 3.3 added shouldConsolidate and spellId