Take snapshot of TradingView chart (+Stochastic RSI) with Puppeteer

index.js

const puppeteer = require('puppeteer');

const ignoreHTTPSErrors = true;

const _sharedBrowser = puppeteer.launch({
        ignoreHTTPSErrors,
        headless: true,
        slowMo: 250,
        args: [
            '--single-process',
            '--no-zygote',
            '--no-sandbox',
            '--disable-setuid-sandbox'
        ]
    });

let _browser = null;

const _tearDown = () => {
    if (_browser) {
        _browser.disconnect();
        _browser = null;
        console.log(`browser disconnected`);
    }
};

const _createChartURL = (pair) => `https://en.tradingview.com/chart/?symbol=BINANCE:${pair}&interval=5&theme=dark`;

const _takeScreenshot = async (symbol) => {

    let screenshot = null;

    if (!symbol) {
        console.log('screenshot skipped, symbol is invalid');
        return screenshot;
    }

    try {

        const browserWSEndpoint = (await _sharedBrowser).wsEndpoint();
        _browser = await puppeteer.connect({ browserWSEndpoint, ignoreHTTPSErrors });

        const page = await _browser.newPage();

        await page.evaluateOnNewDocument(val => {
            localStorage.setItem('tradingview.editchart.model.style', 1);
            localStorage.setItem('tradingview.editchart.model.interval', 5);
            localStorage.setItem('tradingview.current_theme.name', 'dark');
            localStorage.setItem('tradingview.editchart.model.symbol', val);
            localStorage.setItem('tradingview.studyMarket.favorites', '["STD;Stochastic_RSI"]');
        }, `BINANCE:${symbol}`);

        await page.goto(_createChartURL(symbol), { waitUntil: 'networkidle2', timeout: 0 });
        console.log(`page loaded for ${symbol}`);

        await page.waitForTimeout(300);

        // show indicators dialog & add stochastic-rsi
        await page.evaluate(() => document.querySelector('#header-toolbar-indicators div[data-role="button"]').click());
        await page.waitForTimeout(1000);
        await page.evaluate(() => document.querySelector('div[data-id="STD;Stochastic_RSI"]').click());

        await page.waitForTimeout(2000);

        await page.evaluate(() => document.getElementById('header-toolbar-screenshot').click());

        await page.waitForTimeout(3000);

        screenshot = await page.evaluate(() => document.querySelector('div[data-dialog-type="take-snapshot-modal"] input[readonly]').value);
        console.log(`screenshot taken for ${symbol}, screenshot=${screenshot}`);

        await page.waitForTimeout(300);

        await page.close();
        console.log(`page closed for ${symbol}`);

    } catch (err) {

        console.error(err);

    } finally {
        _tearDown();
    }

    return screenshot;
};



// run it
(async () => {

    await _takeScreenshot('BTCUSDT');

})();

run it & go to screenshot url