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feat(app): add redis cache to go server
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -139,4 +139,5 @@ npm-debug.log* | |
| yarn-debug.log* | ||
| yarn-error.log* | ||
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| **/tmp/** | ||
| **/llm_env/** | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package cache | ||
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| import ( | ||
| "bytes" | ||
| "compress/gzip" | ||
| "context" | ||
| "crypto/sha256" | ||
| "encoding/hex" | ||
| "io" | ||
| "time" | ||
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| "github.com/go-redis/redis/v8" | ||
| ) | ||
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| type Cacher interface { | ||
| Get(ctx context.Context, key string) ([]byte, error) | ||
| Set(ctx context.Context, key string, value []byte, expiration time.Duration) error | ||
| GetCompressed(ctx context.Context, key string) ([]byte, error) | ||
| SetCompressed(ctx context.Context, key string, value []byte, expiration time.Duration) error | ||
| HashKey(key string) string | ||
| } | ||
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| type RedisCache struct { | ||
| client *redis.Client | ||
| } | ||
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| func NewRedisCache(addr string) *RedisCache { | ||
| client := redis.NewClient(&redis.Options{ | ||
| Addr: addr, | ||
| }) | ||
| return &RedisCache{client: client} | ||
| } | ||
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| func (rc *RedisCache) Get(ctx context.Context, key string) ([]byte, error) { | ||
| return rc.client.Get(ctx, key).Bytes() | ||
| } | ||
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| func (rc *RedisCache) Set(ctx context.Context, key string, value []byte, expiration time.Duration) error { | ||
| return rc.client.Set(ctx, key, value, expiration).Err() | ||
| } | ||
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| func (rc *RedisCache) GetCompressed(ctx context.Context, key string) ([]byte, error) { | ||
| compressed, err := rc.Get(ctx, key) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
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| reader, err := gzip.NewReader(bytes.NewReader(compressed)) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| defer reader.Close() | ||
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| return io.ReadAll(reader) | ||
| } | ||
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| func (rc *RedisCache) SetCompressed(ctx context.Context, key string, value []byte, expiration time.Duration) error { | ||
| var compressedBuf bytes.Buffer | ||
| gzipWriter := gzip.NewWriter(&compressedBuf) | ||
| _, err := gzipWriter.Write(value) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| gzipWriter.Close() | ||
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| return rc.Set(ctx, key, compressedBuf.Bytes(), expiration) | ||
| } | ||
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| func (rc *RedisCache) HashKey(key string) string { | ||
| hasher := sha256.New() | ||
| hasher.Write([]byte(key)) | ||
| return hex.EncodeToString(hasher.Sum(nil)) | ||
| } |
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