Class PersistPartialInstance

Default file-based implementation of IPersistPartialInstance.

Features:

  • Wraps PersistBase for atomic JSON writes
  • Uses signalId as entity ID within a per-context PersistBase
  • Crash-safe via atomic writes

Example

const instance = new PersistPartialInstance("BTCUSDT", "my-strategy", "binance");
await instance.waitForInit(true);
await instance.writePartialData(partialData, "signal-id-1");
const restored = await instance.readPartialData("signal-id-1");

Implements

Constructors

constructor

Properties

exchangeName strategyName symbol

Methods

readPartialData waitForInit writePartialData

Constructors

constructor

  • new PersistPartialInstance(
        symbol: string,
        strategyName: string,
        exchangeName: string,
    ): PersistPartialInstance

    Creates new partial data persistence instance.

    Parameters

    • symbol: string

      Trading pair symbol

    • strategyName: string

      Strategy identifier

    • exchangeName: string

      Exchange identifier

    Returns PersistPartialInstance

Properties

ReadonlyexchangeName

exchangeName: string

ReadonlystrategyName

strategyName: string

Readonlysymbol

symbol: string

Methods

readPartialData

  • readPartialData(signalId: string, _when: Date): Promise<PartialData>

    Reads the partial data for the given signal using signalId as the entity key.

    Parameters

    • signalId: string

      Signal identifier

    • _when: Date

    Returns Promise<PartialData>

    Promise resolving to partial data record (empty object if not found)

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

writePartialData

  • writePartialData(
        data: PartialData,
        signalId: string,
        _when: Date,
    ): Promise<void>

    Writes the partial data for the given signal using signalId as the entity key.

    Parameters

    • data: PartialData

      Partial data record to persist

    • signalId: string

      Signal identifier

    • _when: Date

    Returns Promise<void>

    Promise that resolves when write is complete

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