How would I post on something other than Discord with a Webhook and HTTPService?

I need help. I already know how to post to Discord with a Webhook, but how do I post to Twitter, or any other thing for example?

local url = "-------- hidden Discord Webhook URL" 


local http = game:GetService("HttpService")


local HookData = {
['username'] = "name here",

['content'] =  "what it says here"
}


HookData = http:JSONEncode(HookData)


http:PostAsync(url, HookData)