Mazyar
36 lines
680 B
Go
36 lines
680 B
Go
package ratelimit
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import (
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"context"
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"time"
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"tm/pkg/redis"
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redisv9 "github.com/redis/go-redis/v9"
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)
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// Allow returns whether the request is within limit for the given key.
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func Allow(ctx context.Context, client redis.Client, key string, limit int64, window time.Duration) (bool, error) {
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if client == nil {
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return true, nil
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}
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count, err := client.Incr(ctx, key)
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if err != nil {
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return false, err
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}
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if count == 1 {
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if err := client.Expire(ctx, key, window); err != nil {
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return false, err
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}
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}
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return count <= limit, nil
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}
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// IsNotFound reports whether err indicates a missing Redis key.
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func IsNotFound(err error) bool {
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return err == redisv9.Nil
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}
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