Candle Bar limitation

[adimiuprix]

I tried to get OHLC bar data, but what makes me wonder is why the maximum data I can increase is only up to 94 bars?

import { useEffect, useState } from "react";
import { PineTS, Provider, Context } from "pinets";
import IndicatorResults from "./components/IndicatorResults";

/**
 * Basic PineTS Configuration & Usage
 * Demonstrating 1:1 Pine Script parity in a React environment.
 */
function App() {
  const [status, setStatus] = useState("Initializing...");
  const [lastValue, setLastValue] = useState<number | null>(null);
  const [fullData, setFullData] = useState<any[]>([]);
  const [ohlcv, setOhlcv] = useState<any[]>([]);

  useEffect(() => {
    async function initPineTS() {
      try {
        const pineTS = new PineTS(Provider.Binance, 'TRXUSDT', '1m', 200);

        setStatus("Fetching Data...");
        await pineTS.ready();

        // --- AMBIL DATA OHLCV ---
        // Data mentah tersedia di pineTS.data yang merupakan array objek per bar
        setOhlcv(pineTS.data.slice(0, 200));
        console.log(pineTS.data.slice(0, 200))
        // ------------------------

        const script = `
//@version=5
indicator("EMA Example", overlay=true)
emaVal = ta.ema(close, 20)
plot(emaVal, title="EMA 20")
        `;

        setStatus("Running Pine Script...");
        const context: Context = await pineTS.run(script);

        const plotObj = context.plots["EMA 20"];
        const emaSeries = plotObj?.data || [];

        if (emaSeries.length > 0) {
          const numericValues = emaSeries.map((d: any) => typeof d === 'object' ? d.value : d);
          const latest = numericValues[numericValues.length - 1];

          setLastValue(latest);
          setFullData(numericValues.slice(-100));
          setStatus("Success - Indicator Computed");
        } else {
          setStatus("Execution finished, but plot 'EMA 20' is empty or not found.");
        }
      } catch (error) {
        console.error("PineTS Error:", error);
        setStatus("Error: " + (error as Error).message);
      }
    }

    initPineTS();
  }, []);

[alaa-eddine]

hey @adimiuprix
not sure about this, you're applying some transformations with setOhlcv prior to logging, are you sure that this is not truncating/filtering something ?

you can see in the playground that the number of bars is virtually unlimitted (the limit is the system/browser resources)
https://quantforge.org/playground/

the playground can load up to 100000 bars .

[adimiuprix]

I've now successfully displayed ohlcv data. As you can see, I've outputted 2,000 data points, awesome!
However, the provider you're currently using is Binance. Perhaps you can add more providers in the future.

[alaa-eddine]

Great !

and yes additional providers are planned, but for now the top priority is to complete Pine Script compatibility (there are still many features missing)

in the meantime, there is a workaround which consist in fetching your data and passing it to PineTS as static data in OOHLCV format.
Here is an example : https://quantforge.org/demos/basic-01.html