Class FakeDataFeed

Deterministic, in-memory data feed for tests and demos. No network. Generates a reproducible synthetic OHLC walk from a fixed seed so that pixel-diff and unit tests are stable across runs (no Math.random / Date.now).

Implements

Constructors

constructor

Methods

getBars subscribeBars

Constructors

constructor

Methods

getBars

subscribeBars

  • subscribeBars(
        req: BarsRequest,
        onBar: (bar: Bar) => void,
        opts?: { tickMs?: number },
    ): UnsubscribeFn

  • Emit deterministic synthetic bars on the scheduler (default: a 1s setInterval). This actually streams, so feature detection (if (feed.subscribeBars)) is honest. Pass a manual scheduler to drive it by hand in tests, and opts.tickMs to change the cadence.

    Parameters

    • req: BarsRequest
    • onBar: (bar: Bar) => void
    • Optionalopts: { tickMs?: number }

    Returns UnsubscribeFn

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