server.lua

ESX = exports["es_extended"]:getSharedObject()

local DISCORD_BOT_TOKEN = "YOUR TOKEN"
local GUILD_ID = "SERVERID"

local ROLE_IDS = {
    { id = "ROLEID", group = "GROUPNAME" }    
}


function hasDiscordRole(discordId, cb)
    PerformHttpRequest("https://discord.com/api/v9/guilds/" .. GUILD_ID .. "/members/" .. discordId, function(statusCode, response, headers)
        if statusCode == 200 then
            local data = json.decode(response)
            if data and data.roles then
                local highestGroup = nil
                for _, role in ipairs(ROLE_IDS) do
                    for _, userRole in ipairs(data.roles) do
                        if userRole == role.id then
                            highestGroup = role.group
                            break
                        end
                    end
                    if highestGroup then
                        break
                    end
                end

                if highestGroup then
                    cb(true, highestGroup)
                else
                    cb(false, nil)
                end
            else
                cb(false, nil)
            end
        else
            print("Error fetching Discord user: " .. statusCode)
            cb(false, nil)
        end
    end, "GET", "", { ["Authorization"] = "Bot " .. DISCORD_BOT_TOKEN })
end

AddEventHandler("esx:playerLoaded", function(playerId)
    local xPlayer = ESX.GetPlayerFromId(playerId)
    local discordId = nil

    for _, identifier in ipairs(GetPlayerIdentifiers(playerId)) do
        if string.sub(identifier, 1, 8) == "discord:" then
            discordId = string.sub(identifier, 9)
            break
        end
    end

    if discordId then
        hasDiscordRole(discordId, function(hasRole)
            if hasRole then
                xPlayer.setGroup("admin")
            end
        end)
    end
end)

AddEventHandler("playerDropped", function()
    local playerId = source
    local xPlayer = ESX.GetPlayerFromId(playerId)
    if xPlayer then
        xPlayer.setGroup("user")
    end
end)