snapshot of https://github.com/flutter/samples.git (main, 2026-09-16; blobs > 131072B omitted)

compass_app/server/lib/routes/login.dart

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+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+
+import 'package:shelf/shelf.dart';
+import 'package:shelf_router/shelf_router.dart';
+
+import '../config/constants.dart';
+import '../model/login_request/login_request.dart';
+import '../model/login_response/login_response.dart';
+
+/// Implements a simple login API.
+///
+/// This is provided as an example for Flutter architectural purposes only
+/// and shouldn't be used as example on how to implement authentication
+/// in production.
+///
+/// This API only accepts a fixed email and password for demonstration purposes,
+/// then returns a hardcoded token and a user id.
+///
+/// This token does not expire and is not secure.
+class LoginApi {
+  Router get router {
+    final router = Router();
+
+    router.post('/', (Request request) async {
+      final body = await request.readAsString();
+      final loginRequest = LoginRequest.fromJson(json.decode(body));
+
+      if (loginRequest.email == Constants.email &&
+          loginRequest.password == Constants.password) {
+        return Response.ok(
+          json.encode(
+            LoginResponse(token: Constants.token, userId: Constants.userId),
+          ),
+          headers: {'Content-Type': 'application/json'},
+        );
+      }
+
+      return Response.unauthorized('Invalid credentials');
+    });
+
+    return router;
+  }
+}