Github, add discord webhook by repo organisation id

good morning
I’m looking to add a webhook generated via a discord bot directly to the creation of a repo on a team. Is this possible because I haven’t seen an example in the github doc.
here is my code:

const request = await fetch(newUrl, {
            headers: {
                "Accept": "application/vnd.github+json",
                'authorization': 'Bearer ' + getStringEnv("GITHUB_TOKEN"),
                'content-type': 'application/json',
                'X-GitHub-Api-Version': '2022-11-28'
            },
            method: "POST",
            body: JSON.stringify({
                name: name,
                description: description,
                private: true
            })
        })
        console.log(await request.json())
    }catch (e){
        console.log(e)
    }

I tried to read the documentation at this url as well as all that can be said about webhooks:
https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads