Redis

RedisConfig

This is a struct which has all the following configurations for redis:

• Host: The host of the redis server.
• Port: The port of the redis server.
• Password: The password of the redis server.
• DBs: Map of usable dbs. It has the following structure: [DB name]:[DB number]
• ReadTimeout: The maximum amount of time for a read.

Versioned Store

Versioned Store is a local cache built over remote redis server. It has the following features:

• A version is maintained against value for each key.
• Any change in value of a key will increment the version of that key.
• The cache will be updated on initialization and at a regular fixed time interval.
• This refresh interval can be configured during initialization.
• On refresh, it will fetch the version of each key from redis server and store them in local cache.
• It will also refresh the values from redis server where there is a change in version of a value and store them in local cache.

Initialization

Call the following function to initialize a versioned store:

func GetVersionedStore[T interfaces.ZKComparable](redisConfig *config.RedisConfig, dbName string, syncTimeInterval time.Duration) (*VersionedStore[T], error)

• T: The type of the value to be stored in the cache.
• redisConfig: The redis config to be used.
• dbName: The name of the db to be used to get the DB number from redis config.
• syncTimeInterval: The time interval after which the cache will be refreshed.