accesstoken.js

async function getAccessToken(id, secret) {
	const params = new URLSearchParams();
	params.append('grant_type', 'client_credentials');
	params.append('client_id', id);
	params.append('client_secret', secret);
	params.append('scope', 'openid,AdobeID,session,additional_info,read_organizations,firefly_api,ff_apis');

	let resp = await fetch('https://ims-na1.adobelogin.com/ims/token/v3',
		{
			method: 'POST',
			body: params
		}
	);
	let data = await resp.json();
	return data.access_token;
}

let token = await getAccessToken(CLIENT_ID, CLIENT_SECRET);