PURISTA API / Modules / @purista/redis-state-store / RedisStateStore

Class: RedisStateStore<M, F, S>

@purista/redis-state-store.RedisStateStore

A state store for using redis as storage. State values are stored as stringified JSON.

Per default, setting/changing and removal of values are enabled.

Example

const config = {
 enableGet: true, // optional, default is true
 enableRemove: true, // optional, default is true
 enableSet: true, // optional, default is true
 url: 'redis://alice:foobared@awesome.redis.server:6379'
}

const store = new RedisStateStore({ config })

await store.setState('stateKey',{ myState: 'value' })

let value = await store.getState('stateKey')
console.log(value) // outputs: { stateKey: { myState: 'value' } }

await store.removeState('stateKey')

value = await store.getState('stateKey')
console.log(value) // outputs: undefined

See documentation of underlaying redis lib package for detailed configuration options.

See

NODE-REDIS

Type parameters

Name	Type
M	extends RedisModules = RedisModules
F	extends RedisFunctions = RedisFunctions
S	extends RedisScripts = RedisScripts

Hierarchy

• StateStoreBaseClass<RedisStoreConfig<M, F, S>>

  ↳ RedisStateStore

Table of contents

Constructors

• constructor

Properties

• client
• config
• logger
• name

Methods

• destroy
• getState
• removeState
• setState

Constructors

constructor

• new RedisStateStore<M, F, S>(config?): RedisStateStore<M, F, S>

Type parameters

Name	Type
M	extends RedisModules = RedisModules
F	extends RedisFunctions = RedisFunctions
S	extends RedisScripts = RedisScripts

Parameters

Name	Type	Description
config?	Object	-
config.cacheTtl?	number	Cache time to live in ms
config.config?	RedisClientOptions<M, F, S>	-
config.enableCache?	boolean	Enable cache
config.enableGet?	boolean	Enable generally get method
config.enableRemove?	boolean	Enable generally remove method
config.enableSet?	boolean	Enable generally set method
config.logLevel?	LogLevelName	A log level for new logger if logger is not set
config.logger?	Logger	A logger instance

Returns

RedisStateStore<M, F, S>

Overrides

StateStoreBaseClass&lt;RedisStoreConfig&lt;M, F, S&gt;&gt;.constructor

Defined in

redis-state-store/src/RedisStateStore.impl.ts:45

Properties

client

• client: RedisClientType<M, F, S>

Defined in

redis-state-store/src/RedisStateStore.impl.ts:43

---

config

• config: Object

Type declaration

Name	Type	Description
cacheTtl?	number	Cache time to live in ms
config?	RedisClientOptions<M, F, S>	-
enableCache?	boolean	Enable cache
enableGet?	boolean	Enable generally get method
enableRemove?	boolean	Enable generally remove method
enableSet?	boolean	Enable generally set method
logLevel?	LogLevelName	A log level for new logger if logger is not set
logger?	Logger	A logger instance

Inherited from

StateStoreBaseClass.config

Defined in

core/lib/types/core/StateStore/StateStoreBaseClass.impl.d.ts:10

---

logger

• logger: Logger

Inherited from

StateStoreBaseClass.logger

Defined in

core/lib/types/core/StateStore/StateStoreBaseClass.impl.d.ts:9

---

name

• name: string

Inherited from

StateStoreBaseClass.name

Defined in

core/lib/types/core/StateStore/StateStoreBaseClass.impl.d.ts:11

Methods

destroy

▸ destroy(): Promise<void>

Returns

Promise<void>

Overrides

StateStoreBaseClass.destroy

Defined in

redis-state-store/src/RedisStateStore.impl.ts:109

---

getState

▸ getState(...stateNames): Promise<Record<string, unknown>>

Parameters

Name	Type
...stateNames	string[]

Returns

Promise<Record<string, unknown>>

Overrides

StateStoreBaseClass.getState

Defined in

redis-state-store/src/RedisStateStore.impl.ts:51

---

removeState

▸ removeState(stateName): Promise<void>

Parameters

Name	Type
stateName	string

Returns

Promise<void>

Overrides

StateStoreBaseClass.removeState

Defined in

redis-state-store/src/RedisStateStore.impl.ts:74

---

setState

▸ setState(stateName, stateValue): Promise<void>

Parameters

Name	Type
stateName	string
stateValue	unknown

Returns

Promise<void>

Overrides

StateStoreBaseClass.setState

Defined in

redis-state-store/src/RedisStateStore.impl.ts:92