Chat Message from Extension

Extensions
5

Okay, so after looking over some fetch documentation I solved the URL problem. It needed to be:

fetch(url, {
    method: 'POST',

instead of

fetch({
    method: 'POST',
    url: url,

But, now I get a 404 error from:

https://api.twitch.tv/extensions/<CLIENT_ID>/<VERSION>/channels/<CHANNEL_ID>/chat/pinned

and a 400 error from:

https://api.twitch.tv/extensions/<CLIENT_ID>/<VERSION>/channels/<CHANNEL_ID>/chat