Class PersistSessionInstance

Default file-based implementation of IPersistSessionInstance.

Features:

  • Wraps PersistBase for atomic JSON writes
  • Uses frameName as entity ID within a per-strategy/exchange PersistBase
  • dispose is a no-op (memo cache is managed by PersistSessionUtils)

Example

const instance = new PersistSessionInstance("my-strategy", "binance", "frame-1");
await instance.waitForInit(true);
await instance.writeSessionData({ id: "frame-1", data: { session: "state" } });
const session = await instance.readSessionData();

Implements

Constructors

constructor

Properties

backtest exchangeName frameName strategyName symbol

Methods

dispose readSessionData waitForInit writeSessionData

Constructors

constructor

  • new PersistSessionInstance(
        strategyName: string,
        exchangeName: string,
        frameName: string,
        symbol: string,
        backtest: boolean,
    ): PersistSessionInstance

    Creates new session persistence instance.

    Parameters

    • strategyName: string

      Strategy identifier

    • exchangeName: string

      Exchange identifier

    • frameName: string

      Frame identifier (storage subdirectory)

    • symbol: string

      Trading pair symbol (part of the entity key)

    • backtest: boolean

      Whether the session belongs to a backtest run (part of the entity key)

    Returns PersistSessionInstance

Properties

Readonlybacktest

backtest: boolean

ReadonlyexchangeName

exchangeName: string

ReadonlyframeName

frameName: string

ReadonlystrategyName

strategyName: string

Readonlysymbol

symbol: string

Methods

dispose

  • dispose(): void

    No-op for the default file-based implementation. Resource cleanup (memo cache invalidation) is handled by PersistSessionUtils.dispose().

    Returns void

readSessionData

waitForInit

  • waitForInit(initial: boolean): Promise<void>

    Initializes the underlying PersistBase storage.

    Parameters

    • initial: boolean

      Whether this is the first initialization

    Returns Promise<void>

    Promise that resolves when initialization is complete

writeSessionData

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