Standalone pages to view an OAuth client and a browser session

frontend/src/pages/OAuth2Client.tsx

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+// Copyright 2022 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { graphql, useLazyLoadQuery } from "react-relay";
+import { useParams } from "react-router-dom";
+
+import type { OAuth2ClientQuery } from "./__generated__/OAuth2ClientQuery.graphql";
+
+const OAuth2Client: React.FC = () => {
+  const { id } = useParams();
+  if (!id) {
+    throw new Error("Missing parameter");
+  }
+
+  const data = useLazyLoadQuery<OAuth2ClientQuery>(
+    graphql`
+      query OAuth2ClientQuery($id: ID!) {
+        oauth2Client(id: $id) {
+          id
+          clientId
+          clientName
+          clientUri
+          tosUri
+          policyUri
+          redirectUris
+        }
+      }
+    `,
+    { id }
+  );
+
+  return (
+    <pre>
+      <code>{JSON.stringify(data.oauth2Client, null, 2)}</code>
+    </pre>
+  );
+};
+
+export default OAuth2Client;