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60 lines
1.4 KiB
60 lines
1.4 KiB
2 years ago
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package xredis
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//
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//import (
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// "context"
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// "encoding/json"
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// "fmt"
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// "github.com/go-redis/redis/v8"
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// "github.com/pkg/errors"
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// "time"
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//)
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//
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//var redisClient *redis.Client
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//
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//func Init(host, password string, db int) error {
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// redisClient = redis.NewClient(&redis.Options{
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// Network: "tcp",
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// Addr: host,
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// Password: password,
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// DB: db,
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// })
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// return redisClient.Ping(context.Background()).Err()
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//}
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//
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//func Client() *redis.Client {
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// return redisClient
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//}
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//
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//func GetData[T any](ctx context.Context, key string, fn func() (T, error), dur time.Duration) (T, error) {
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// var result T
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// res := redisClient.Get(ctx, key).Val()
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// if res != "" {
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// err := json.Unmarshal([]byte(res), &result)
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// if err == nil {
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// return result, nil
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// }
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// }
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// r, err := fn()
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// if err != nil {
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// return result, err
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// }
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// if b, err := json.Marshal(r); err == nil {
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// redisClient.Set(ctx, key, string(b), dur)
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// }
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// return r, nil
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//}
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//func Lock[T any](ctx context.Context, key string, fn func() (T, error)) (T, error) {
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// var res T
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// lockKey := fmt.Sprintf("lock:%s", key)
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// ok, err := redisClient.SetNX(ctx, lockKey, 1, time.Second*20).Result()
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// if err != nil {
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// return res, errors.Wrap(err, "")
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// }
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// if !ok {
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// return res, errors.Wrap(errors.New(fmt.Sprintf("lock %s exists", lockKey)), "")
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// }
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// defer redisClient.Del(ctx, lockKey)
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// return fn()
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//}
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