Get Access Token for Weavy user in Confluence

import Resolver from '@forge/resolver';
import api, { fetch, route } from '@forge/api';

let _tokens = [];
const apiKey = "********************";
const backend = "WEAVY_URL";

resolver.define("token", async (req, res) => {
    // get confluence user's account id
    const accountId = req.context.accountId;

    // check if we already have a token stored for the user or if we need to refresh the token
    if ((!req.payload.refresh || req.payload.refresh === "false") && _tokens.find((t) => t.accountId === accountId)) {
        res.json({ access_token: _tokens.find((t) => t.accountId === accountId).access_token });
    } else {
        // get an access token from weavy backend
        let response = await fetch(`${backend}/api/users/${accountId}/tokens`, {
            method: 'POST',
            headers: {
                'content-type': 'application/json',
                'Authorization': `Bearer ${apiKey}`
            },
            body: JSON.stringify({ expires_in: 3600 })
        });

        if (response.ok) {
            let data = await response.json();
            // store the access token so we don't need to call the api every time (unless we need to refresh the token)
            _tokens = [..._tokens.filter((t) => t.accountId !== accountId), { accountId: accountId, access_token: data.access_token }];
            return data.access_token;
        } else {
            return ({ message: "Could not get access token from server!", accountId: accountId, error: response })
        }
    }
});

export const handler = resolver.getDefinitions();

weavy.tokenFactory = async (refresh) => {
    return await invoke('token', { refresh: refresh });
};