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redis.go
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redis.go
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package rwe
import (
"context"
"sync"
"time"
"github.com/go-redis/cache/v8"
"github.com/go-redis/redis/v8"
"github.com/go-redis/redis_rate/v9"
"github.com/go-redis/redisext"
)
var (
redisRingOnce sync.Once
redisRing *redis.Ring
)
func RedisRing() *redis.Ring {
redisRingOnce.Do(func() {
opt := Config.RedisCache.Options()
redisRing = redis.NewRing(opt)
_ = redisRing.ForEachShard(context.TODO(),
func(ctx context.Context, shard *redis.Client) error {
shard.AddHook(redisext.OpenTelemetryHook{})
return nil
})
})
return redisRing
}
//------------------------------------------------------------------------------
var (
rateLimiterOnce sync.Once
rateLimiter *redis_rate.Limiter
)
func RateLimiter() *redis_rate.Limiter {
rateLimiterOnce.Do(func() {
rateLimiter = redis_rate.NewLimiter(RedisRing())
})
return rateLimiter
}
//------------------------------------------------------------------------------
var (
redisCacheOnce sync.Once
redisCache *cache.Cache
)
func RedisCache() *cache.Cache {
redisCacheOnce.Do(func() {
redisCache = cache.New(&cache.Options{
Redis: RedisRing(),
LocalCache: cache.NewTinyLFU(1000, time.Minute),
})
})
return redisCache
}