cal.pub0.org/apps/web/pages/api/integrations/googlecalendar/add.ts

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import { google } from "googleapis";
import type { NextApiRequest, NextApiResponse } from "next";
import { getSession } from "@lib/auth";
import { BASE_URL } from "@lib/config/constants";
import { encodeOAuthState } from "../utils";
const credentials = process.env.GOOGLE_API_CREDENTIALS!;
const scopes = [
"https://www.googleapis.com/auth/calendar.readonly",
"https://www.googleapis.com/auth/calendar.events",
];
export default async function handler(req: NextApiRequest, res: NextApiResponse) {
if (req.method === "GET") {
// Check that user is authenticated
const session = await getSession({ req: req });
if (!session) {
res.status(401).json({ message: "You must be logged in to do this" });
return;
}
// Get token from Google Calendar API
const { client_secret, client_id } = JSON.parse(credentials).web;
const redirect_uri = BASE_URL + "/api/integrations/googlecalendar/callback";
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const oAuth2Client = new google.auth.OAuth2(client_id, client_secret, redirect_uri);
const authUrl = oAuth2Client.generateAuthUrl({
access_type: "offline",
scope: scopes,
// A refresh token is only returned the first time the user
// consents to providing access. For illustration purposes,
// setting the prompt to 'consent' will force this consent
// every time, forcing a refresh_token to be returned.
prompt: "consent",
state: encodeOAuthState(req),
});
res.status(200).json({ url: authUrl });
}
}