re-implemented JWT auth

app/server/graphql/resolvers/auth/logout.ts

@@ -0,0 +1,32 @@
+import { IdentityContext } from '@app/server/identity';
+import { prisma } from '@app/server/prisma/client';
+
+export async function LogoutResolver(
+  _: any,
+  __: any,
+  { req, res, identity }: IdentityContext
+): Promise<void> {
+  const cookie: { jwt?: string | null } = req.cookies;
+  if (cookie == null || cookie.jwt == null) return;
+
+  const refreshToken = cookie.jwt;
+
+  const user = await prisma.user.findUnique({
+    where: { refreshToken },
+    select: { id: true }
+  });
+
+  if (user == null) {
+    res.clearCookie('jwt', { httpOnly: true });
+    return;
+  }
+
+  await prisma.user.update({
+    where: {
+      id: user.id
+    },
+    data: { refreshToken: null }
+  });
+
+  res.clearCookie('jwt', { httpOnly: true });
+}