58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
// Package rate_limit ...
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//
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// Description : rate_limit ...
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 2023-03-09 11:31
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package rate_limit
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import (
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"context"
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"sync"
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"time"
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"git.zhangdeman.cn/zhangdeman/rate_limit/define"
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"github.com/go-redis/redis_rate/v10"
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redisInstance "github.com/redis/go-redis/v9"
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)
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var (
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RedisClient = &Redis{}
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)
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// Redis ...
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 11:44 2024/6/20
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type Redis struct {
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limiter *redis_rate.Limiter // limiter 限流实例
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redisClient *redisInstance.Client // redis 客户端实例
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lock *sync.RWMutex
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}
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func (r *Redis) SetRedisClient(client *redisInstance.Client) {
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r.redisClient = client
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r.limiter = redis_rate.NewLimiter(r.redisClient)
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}
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func (r *Redis) AllowN(ctx context.Context, limitCfg *define.LimitConfig, tokenCnt int) (bool, error) {
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if limitCfg.Total <= 0 || limitCfg.Rate <= 0 {
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return true, nil
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}
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res, err := r.limiter.AllowN(ctx, limitCfg.Key, redis_rate.Limit{
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Rate: limitCfg.Rate,
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Period: time.Duration(limitCfg.TimeInterval) * time.Second,
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Burst: limitCfg.Total,
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}, tokenCnt)
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if nil != err {
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return false, err
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}
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return res.Allowed > 0, nil
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}
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func (r *Redis) Reset(ctx context.Context, limitCfg *define.LimitConfig) error {
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return r.limiter.Reset(ctx, limitCfg.Key)
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}
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