Is there a way to get the thumbnail of a game link or the preview image of a link as if you just posted the link on Discord?
I am attempting to place this inside an embed object that I will use for a Discord webhook.
Here’s an example where the thumbnail for the game is shown along with information about it, I am trying to get that thumbnail image with any given game place link.
I’ve already looked over the dev forum and Google for answers without anything related to what I need.
Yes. These are meta tags in the HTML of the page that can be used for embeds. They’re defined in the <head>
Particularly, I am trying to do a webhook request from a Roblox game in Lua. Is there some way to fetch the meta tags of the HTML of the page in my code? I have never done anything like going inside page HTMLs before so any explanation will be helpful.
I assume I’d have to use the content URL correlated to the property “og:image” as my image url?
Just make a GET request? HttpService:GetAsync
You’ll need to parse the response.
I’ve attempted this with a trust check failure which I guess means I’ll have to use a proxy link. Any way you can elaborate how to use the Get request to find my image preview metatag? I am not sure of any proxies to use and I am fairly new to this stuff.
Send a GET Request to
https://thumbnails.rprxy.xyz/v1/assets
Query params are listed on the documentation here, but one of them that you’ll need is the ID of the game
After parsing the result from JSON, you can access the thumbnail by doing:
local img = parsedTable.data[1].imageUrl
https://nl.hideproxy.me/go.php?u=
You send a get request using the proxy with your URL and parse the response. The response will be a big HTML response.
Here is a function that takes in an HTML response and parses it:
local TagTypes = {
"site_name",
"title",
"type",
"url",
"description"
}
local function GetOGTags(Response)
local Tags = {}
for i, TagName in pairs(TagTypes) do
local LookupString = "<meta property=\"og:" .. TagName .. "\" content=\"(.-)\""
local TagValue = Response:match(LookupString)
print(TagName, TagValue)
if (TagValue) then
Tags[TagName] = TagValue
end
end
return Tags
end
@Rare_tendo I’m having a Trust check error every time I try to use the request URL
@SwagMasterAndrew Without parsing, it will just give me a huge amount of metatags and even the contents of the page like the site’s explanation of their proxy. When parsing, there is an error saying “Can’t parse JSON”. (EDIT: My mistake, I was trying to parse in JSON)
You don’t want to use JSONDecode because it is not a JSON response. It’s an XML response. They’re different formats
Sorry, I have completely no experience in parsing outside JSON in different response types. But using your function, I am receiving this:
site_name nil
title nil
type nil
url nil
description nil
URL used:
EDIT: You said HTML response then its an XML response. Should I look for an XML response parser then?
I’m sorry. I didn’t notice hide.me would cut out the meta tags. Give me a minute.
Okay so I wrote an example for how you could setup your own nodejs server that will act as a proxy to the URL you’re trying to request to
Here is an example setup on repl.it; however, you might not want to use repl.it if you’re going to be making lots of requests.
https://repl.it/@DogeConnoisseur/MoralSharpSearch#index.js
Here is some example code:
local HTTPService = game:GetService("HttpService")
local TagTypes = {
"site_name",
"title",
"type",
"url",
"description",
"image"
}
local function GetOGTags(Response)
local Tags = {}
for i, TagName in pairs(TagTypes) do
local LookupString = "<meta property=\"?og:" .. TagName .. "\"? content=\"?(.-)\"?>"
local TagValue = Response:match(LookupString)
if (TagValue) then
Tags[TagName] = TagValue
end
end
return Tags
end
local Response = HTTPService:GetAsync("https://moralsharpsearch.dogeconnoisseur.repl.co/?Input=https://www.roblox.com/games/5757755338/SwagMasterAndrews-Place-Number-724")
local Tags = GetOGTags(Response)
for TagName, TagValue in pairs(Tags) do
print(TagName, TagValue)
end
Example output:
