add team invitation functionality [WIP]

lib/api/isAuthenticatedRequest.ts

@@ -0,0 +1,47 @@
+import { NextApiRequest } from "next";
+import { getToken } from "next-auth/jwt";
+import { prisma } from "./db";
+
+type Props = {
+  req: NextApiRequest;
+};
+
+export default async function isAuthenticatedRequest({ req }: Props) {
+  const token = await getToken({ req });
+  const userId = token?.id;
+
+  if (!userId) {
+    return null;
+  }
+
+  if (token.exp < Date.now() / 1000) {
+    return null;
+  }
+
+  // check if token is revoked
+  const revoked = await prisma.accessToken.findFirst({
+    where: {
+      token: token.jti,
+      revoked: true,
+    },
+  });
+
+  if (revoked) {
+    return null;
+  }
+
+  const findUser = await prisma.user.findFirst({
+    where: {
+      id: userId,
+    },
+    include: {
+      subscriptions: true,
+    },
+  });
+
+  if (findUser && !findUser?.subscriptions) {
+    return null;
+  }
+
+  return findUser;
+}