first commit

calcom/packages/app-store/intercom/api/add.ts

@@ -0,0 +1,30 @@
+import type { NextApiRequest, NextApiResponse } from "next";
+import { stringify } from "querystring";
+
+import { WEBAPP_URL_FOR_OAUTH } from "@calcom/lib/constants";
+
+import getAppKeysFromSlug from "../../_utils/getAppKeysFromSlug";
+import { encodeOAuthState } from "../../_utils/oauth/encodeOAuthState";
+
+let client_id = "";
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+  if (req.method === "GET") {
+    const appKeys = await getAppKeysFromSlug("intercom");
+    if (typeof appKeys.client_id === "string") client_id = appKeys.client_id;
+    if (!client_id) return res.status(400).json({ message: "Intercom client_id missing." });
+
+    const state = encodeOAuthState(req);
+
+    const params = {
+      client_id,
+      redirect_uri: `${WEBAPP_URL_FOR_OAUTH}/api/integrations/intercom/callback`,
+      state,
+      response_type: "code",
+    };
+
+    const authUrl = `https://app.intercom.com/oauth?${stringify(params)}`;
+
+    res.status(200).json({ url: authUrl });
+  }
+}