40 lines
1.5 KiB
Dart
40 lines
1.5 KiB
Dart
import 'package:angel3_redis/angel3_redis.dart';
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import 'package:angel3_framework/angel3_framework.dart';
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import 'package:angel3_production/angel3_production.dart';
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import 'package:angel3_security/angel3_security.dart';
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import 'package:resp_client/resp_client.dart';
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import 'package:resp_client/resp_commands.dart';
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import 'package:resp_client/resp_server.dart';
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// We run this through angel_production, so that we can have
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// multiple instances, all using the same Redis queue.
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void main(List<String> args) =>
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Runner('rate_limit_redis', configureServer).run(args);
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void configureServer(Angel app) async {
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// Create a simple rate limiter that limits users to 10
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// queries per 30 seconds.
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//
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// In this case, we rate limit users by IP address.
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//
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// Our Redis store will be used to manage windows.
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var connection = await connectSocket('localhost');
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var client = RespClient(connection);
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var service = RedisService(RespCommandsTier2(client),
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prefix: 'rate_limit_redis_example');
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var rateLimiter = ServiceRateLimiter(
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10, Duration(seconds: 30), service, (req, res) => req.ip);
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// `RateLimiter.handleRequest` is a middleware, and can be used anywhere
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// a middleware can be used. In this case, we apply the rate limiter to
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// *all* incoming requests.
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app.fallback(rateLimiter.handleRequest);
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// Basic routes.
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app
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..get('/', (req, res) {
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var instance = req.container!.make<InstanceInfo>();
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res.writeln('This is instance ${instance.id}.');
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})
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..fallback((req, res) => throw AngelHttpException.notFound());
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}
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