Can i give group roles in roblox using the api?

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#1 
local Cookie = "_|WARNING:-DO-NOT-SHARE-THIS.--Sharing-this-will-allow-someone-to-log-in-as-you-and-to-steal-your-ROBUX-and-items.|_Werenostrangerstolove"
local BrowserToken = "i think i cant share this i dont know what it means"

local function GiveRank(GroupId, Id, Rank)
	local Link = `https://groups.roproxy.com/v1/groups/{GroupId}/users/{Id}`
	
	task.spawn(function() -- no yield
		print(pcall(function() -- no errors
			return HttpService:RequestAsync({
				Url = Link,
				Method = "PATCH", -- i think this is not supported
				Body = HttpService:JSONEncode({
					["roleId"] = tostring(Rank)
				}),
				Headers = {
					["X-CSRF-TOKEN"] = BrowserToken,
					[".ROBLOSECURITY"] = Cookie, -- invalid character `.` and `|`
					["Referer"] = "https://www.roblox.com/",
					["Origin"] = "https://www.roblox.com"
				}
			})
		end))
	end)
end

The code above me is a failed attempt of me setting some random dude’s role to an admin, Is there a possible way to set a role without learning php or glitch or setting up a whole website thing?

There are no other people who tried to do this in roblox before I think

#2

you can just say no, if no one has done it then its probably impossible

#3

Never seen this done by a roblox group so I doubt it was done using the API. Most roblox groups I’ve seeen either manually give roles or they program it through another coding language outside of roblox’s API.

#4

yes, there are roleplay groups like cafes, hospitals and others who uses this. but i dont know how exactly they do this.

i assume those stuff are just sending http requests, luau can do that too.

#5