51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
/*
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* Copyright 2024 Jonas Kaninda
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package middlewares
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import (
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"context"
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"errors"
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"github.com/go-redis/redis_rate/v10"
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"github.com/redis/go-redis/v9"
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)
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// redisRateLimiter, handle rateLimit
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func redisRateLimiter(clientIP, unit string, rate int) error {
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limit := redis_rate.PerMinute(rate)
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if len(unit) != 0 && unit == "hour" {
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limit = redis_rate.PerHour(rate)
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}
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ctx := context.Background()
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res, err := limiter.Allow(ctx, clientIP, limit)
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if err != nil {
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return err
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}
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if res.Remaining == 0 {
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return errors.New("requests limit exceeded")
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}
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return nil
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}
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func InitRedis(addr, password string) {
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Rdb = redis.NewClient(&redis.Options{
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Addr: addr,
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Password: password,
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})
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limiter = redis_rate.NewLimiter(Rdb)
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}
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