Engine

GroupService

Show Deprecated
not creatable
service
not replicated

GroupService is a service that allows developers to fetch information about a Roblox group from within a game.

Basic information on the group, including it's name, description, owner, roles and emblem can be fetched using GroupService:GetGroupInfoAsync(). Lists of a group's allies and enemies can be fetched using GroupService:GetAlliesAsync() and GroupService:GetEnemiesAsync().

GroupService can also be used to fetch a list of group's a player is a member of, using GroupService:GetGroupsAsync(). Note, developers wishing to verify if a player is in a group should use the Player Player:IsInGroup() function rather than GroupService:GetGroupsAsync().

The service has a number of useful applications, such as detecting if a player is an ally or enemy upon joining the game.

Code Samples

Group Ally/Enemy Checker

local GroupService = game:GetService("GroupService")
local Players = game:GetService("Players")
-- define group id here
local GROUP_ID = 271454
-- utility function for dealing with pages
local function pagesToArray(pages)
local array = {}
while true do
for _, v in ipairs(pages:GetCurrentPage()) do
table.insert(array, v)
end
if pages.IsFinished then
break
end
pages:AdvanceToNextPageAsync()
end
return array
end
-- get lists of allies and enemies
local alliesPages = GroupService:GetAlliesAsync(GROUP_ID)
local enemiesPages = GroupService:GetEnemiesAsync(GROUP_ID)
-- convert to array
local allies = pagesToArray(alliesPages)
local enemies = pagesToArray(enemiesPages)
local function playerAdded(player)
-- check to see if the player is in the group
if player:IsInGroup(GROUP_ID) then
print(player.Name .. " is a member!")
else
local isAlly, isEnemy = false, false
-- check to see if the player is in any ally groups
for _, groupInfo in ipairs(allies) do
local groupId = groupInfo.Id
if player:IsInGroup(groupId) then
isAlly = true
break
end
end
-- check to see if the player is in any enemy groups
for _, groupInfo in ipairs(enemies) do
local groupId = groupInfo.Id
if player:IsInGroup(groupId) then
isEnemy = true
break
end
end
if isAlly and not isEnemy then
print(player.Name .. " is an ally!")
elseif isEnemy and not isAlly then
print(player.Name .. " is an enemy!")
elseif isEnemy and isAlly then
print(player.Name .. " is both an ally and an enemy!")
else
print(player.Name .. " is neither an ally or an enemy!")
end
end
end
-- listen for new players being added
Players.PlayerAdded:Connect(playerAdded)
-- handle players already in game
for _, player in ipairs(Players:GetPlayers()) do
playerAdded(player)
end

Summary

Methods

Properties

Methods

GetAlliesAsync

yields

Returns a StandardPages object including information on all of the specified group's allies.

This pages does not include a list of group IDs but instead a list of group information tables, mirroring the format of those returned by GroupService:GetGroupInfoAsync(). See below for the structure of these tables.


group = {
Name = "Knights of the Seventh Sanctum",
Id = 377251,
Owner = {
Name = "Vilicus",
Id = 23415609
},
EmblemUrl = "http://www.roblox.com/asset/?id=60428602",
Description = "We fight alongside the balance to make sure no one becomes to powerful",
Roles = {
[1] = {
Name = "Apprentice",
Rank = 1
},
[2] = {
Name = "Warrior",
Rank = 2
},
[3] = {
Name = "Earth Walker",
Rank = 255
}
}
}

Note, as this function returns a StandardPages object rather than an array, developers may wish to convert it to an array for ease of use (see examples).

This function has a number of useful applications, including detecting if a player is a member of an allied group.

For enemies, use GroupService:GetEnemiesAsync().

Parameters

groupId: number

The group's ID.


Returns

Code Samples

GroupService:GetAlliesAsync

local Players = game:GetService("Players")
local GroupService = game:GetService("GroupService")
local GROUP_ID = 57
-- creates a table of all of the allies of a given group
local allies = {}
local pages = GroupService:GetAlliesAsync(GROUP_ID)
while true do
for _, group in pairs(pages:GetCurrentPage()) do
table.insert(allies, group)
end
if pages.IsFinished then
break
end
pages:AdvanceToNextPageAsync()
end
function onPlayerAdded(player)
for _, group in pairs(allies) do
if player:IsInGroup(group.Id) then
print("Player is an ally!")
break
end
end
end
Players.PlayerAdded:Connect(onPlayerAdded)
-- handle players who joined while the allies list was still loading
for _, player in pairs(Players:GetPlayers()) do
onPlayerAdded(player)
end
Group Ally/Enemy Checker

local GroupService = game:GetService("GroupService")
local Players = game:GetService("Players")
-- define group id here
local GROUP_ID = 271454
-- utility function for dealing with pages
local function pagesToArray(pages)
local array = {}
while true do
for _, v in ipairs(pages:GetCurrentPage()) do
table.insert(array, v)
end
if pages.IsFinished then
break
end
pages:AdvanceToNextPageAsync()
end
return array
end
-- get lists of allies and enemies
local alliesPages = GroupService:GetAlliesAsync(GROUP_ID)
local enemiesPages = GroupService:GetEnemiesAsync(GROUP_ID)
-- convert to array
local allies = pagesToArray(alliesPages)
local enemies = pagesToArray(enemiesPages)
local function playerAdded(player)
-- check to see if the player is in the group
if player:IsInGroup(GROUP_ID) then
print(player.Name .. " is a member!")
else
local isAlly, isEnemy = false, false
-- check to see if the player is in any ally groups
for _, groupInfo in ipairs(allies) do
local groupId = groupInfo.Id
if player:IsInGroup(groupId) then
isAlly = true
break
end
end
-- check to see if the player is in any enemy groups
for _, groupInfo in ipairs(enemies) do
local groupId = groupInfo.Id
if player:IsInGroup(groupId) then
isEnemy = true
break
end
end
if isAlly and not isEnemy then
print(player.Name .. " is an ally!")
elseif isEnemy and not isAlly then
print(player.Name .. " is an enemy!")
elseif isEnemy and isAlly then
print(player.Name .. " is both an ally and an enemy!")
else
print(player.Name .. " is neither an ally or an enemy!")
end
end
end
-- listen for new players being added
Players.PlayerAdded:Connect(playerAdded)
-- handle players already in game
for _, player in ipairs(Players:GetPlayers()) do
playerAdded(player)
end

GetEnemiesAsync

yields

Returns a StandardPages object including information on all of the specified group's enemies.

This pages does not include a list of group IDs but instead a list of group information tables, mirroring the format of those returned by GroupService:GetGroupInfoAsync(). See below for the structure of these tables.


group = {
Name = "Knights of the Seventh Sanctum",
Id = 377251,
Owner = {
Name = "Vilicus",
Id = 23415609
},
EmblemUrl = "http://www.roblox.com/asset/?id=60428602",
Description = "We fight alongside the balance to make sure no one becomes to powerful",
Roles = {
[1] = {
Name = "Apprentice",
Rank = 1
},
[2] = {
Name = "Warrior",
Rank = 2
},
[3] = {
Name = "Earth Walker",
Rank = 255
}
}
}

Note, as this function returns a StandardPages object rather than an array, developers may wish to convert it to an array for ease of use (see examples).

This function has a number of useful applications, including detecting if a player is a member of an enemy group.

For allies, use GroupService:GetAlliesAsync().

Parameters

groupId: number

The group's ID.


Returns

Code Samples

GroupService:GetEnemiesAsync

local Players = game:GetService("Players")
local GroupService = game:GetService("GroupService")
local GROUP_ID = 57
-- creates a list of all of the enemies of a given group
local enemies = {}
local pages = GroupService:GetEnemiesAsync(GROUP_ID)
while true do
for _, group in pairs(pages:GetCurrentPage()) do
table.insert(enemies, group)
end
if pages.IsFinished then
break
end
pages:AdvanceToNextPageAsync()
end
function onPlayerAdded(player)
for _, enemyGroup in pairs(enemies) do
if player:IsInGroup(enemyGroup.Id) then
print("Player is an enemy!")
break
end
end
end
Players.PlayerAdded:Connect(onPlayerAdded)
-- handle players who joined while the enemies list was still loading
for _, player in pairs(Players:GetPlayers()) do
onPlayerAdded(player)
end
Group Ally/Enemy Checker

local GroupService = game:GetService("GroupService")
local Players = game:GetService("Players")
-- define group id here
local GROUP_ID = 271454
-- utility function for dealing with pages
local function pagesToArray(pages)
local array = {}
while true do
for _, v in ipairs(pages:GetCurrentPage()) do
table.insert(array, v)
end
if pages.IsFinished then
break
end
pages:AdvanceToNextPageAsync()
end
return array
end
-- get lists of allies and enemies
local alliesPages = GroupService:GetAlliesAsync(GROUP_ID)
local enemiesPages = GroupService:GetEnemiesAsync(GROUP_ID)
-- convert to array
local allies = pagesToArray(alliesPages)
local enemies = pagesToArray(enemiesPages)
local function playerAdded(player)
-- check to see if the player is in the group
if player:IsInGroup(GROUP_ID) then
print(player.Name .. " is a member!")
else
local isAlly, isEnemy = false, false
-- check to see if the player is in any ally groups
for _, groupInfo in ipairs(allies) do
local groupId = groupInfo.Id
if player:IsInGroup(groupId) then
isAlly = true
break
end
end
-- check to see if the player is in any enemy groups
for _, groupInfo in ipairs(enemies) do
local groupId = groupInfo.Id
if player:IsInGroup(groupId) then
isEnemy = true
break
end
end
if isAlly and not isEnemy then
print(player.Name .. " is an ally!")
elseif isEnemy and not isAlly then
print(player.Name .. " is an enemy!")
elseif isEnemy and isAlly then
print(player.Name .. " is both an ally and an enemy!")
else
print(player.Name .. " is neither an ally or an enemy!")
end
end
end
-- listen for new players being added
Players.PlayerAdded:Connect(playerAdded)
-- handle players already in game
for _, player in ipairs(Players:GetPlayers()) do
playerAdded(player)
end

GetGroupInfoAsync

Variant
yields

Returns a table containing information about the given group.

The table returned is the same format as that returned in GroupService:GetAlliesAsync() and GroupService:GetEnemiesAsync(). This format can be seen below.


group = {
Name = "Knights of the Seventh Sanctum",
Id = 377251,
Owner = {
Name = "Vilicus",
Id = 23415609
},
EmblemUrl = "http://www.roblox.com/asset/?id=60428602",
Description = "We fight alongside the balance to make sure no one becomes to powerful",
Roles = {
[1] = {
Name = "Apprentice",
Rank = 1
},
[2] = {
Name = "Warrior",
Rank = 2
},
[3] = {
Name = "Earth Walker",
Rank = 255
}
}
}

Note, if a group has no owner the Owner field will be set to nil.

This function has a number of useful applications, including loading the latest description and logo of a group for display in a group base.

Parameters

groupId: number

The group ID of the group.


Returns

Variant

A dictionary of information about the group.

Code Samples

GroupService:GetGroupInfoAsync

local GroupService = game:GetService("GroupService")
local GROUP_ID = 377251
local group = GroupService:GetGroupInfoAsync(GROUP_ID)
print(group.Name .. " has the following roles:")
for _, role in ipairs(group.Roles) do
print("Rank " .. role.Rank .. ": " .. role.Name)
end
Load Group Emblem

local GroupService = game:GetService("GroupService")
local function getEmblemAsync(groupId)
local groupInfo = GroupService:GetGroupInfoAsync(groupId)
return groupInfo.EmblemUrl
end
local part = Instance.new("Part")
part.Anchored = true
part.CanCollide = false
part.Size = Vector3.new(5, 5, 1)
part.Position = Vector3.new(0, 5, 0)
local decal = Instance.new("Decal")
decal.Parent = part
part.Parent = workspace
decal.Texture = getEmblemAsync(377251)

GetGroupsAsync

yields

Warning: The IsInClan property in the returned table will always return false and exists for backwards compatibility. The Clans feature was sunset from the Roblox platform in 2016.

This function returns a list of tables containing information on all of the groups a given Player is a member of.

The list returned will include an entry for every group the player is a member of. These entries are tables with the following fields.

NameDescription
NameThe group's name
IdThe group ID
EmblemUrlAn asset url linking to the group's thumbnail (for example: http://www.roblox.com/asset/?id=276165514)
EmblemIdThe assetId of the emblem, the same which is used in the EmblemUrl
RankThe rankId the player has (for example: 255 for the owner)
RoleThe name of the player's grouprank (for example: Group Owner)
IsPrimaryA boolean indicating if this is the player's primary group
IsInClanA boolean indicating if the player is in this group's clan

Note unlike GroupService:GetAlliesAsync() and GroupService:GetEnemiesAsync(), GetGroupsAsync returns a table rather than a StandardPages object.

Parameters

userId: number

The Player.UserId of the user.


Returns

An array of dictionaries containing information on the group's the Player is a member of.

Code Samples

Getting the Groups that a User is A Member Of

local GroupService = game:GetService("GroupService")
local Players = game:GetService("Players")
local function playerAdded(player)
-- load a list of info on all groups the player is a member of
local groups = GroupService:GetGroupsAsync(player.UserId)
for _, groupInfo in pairs(groups) do
for key, value in pairs(groupInfo) do
print(key .. ": " .. tostring(value))
end
print("--")
end
end
Players.PlayerAdded:Connect(playerAdded)
-- go through existing players
for _, player in pairs(Players:GetPlayers()) do
playerAdded(player)
end

Events