candlestick-chart-generator/test_enhanced_chart.js

A Node.js library for generating candlestick chart screenshots using financial data

const CandlestickChartGenerator = require('./index');

async function testEnhancedChart() {
    const generator = new CandlestickChartGenerator({ headless: true });

    try {
        console.log('=== Testing Enhanced Chart Features ===\n');
        console.log('🚀 Generating chart with volume, OHLC, current price, time, and buy/sell signals...\n');

        await generator.generateChartScreenshot({
            symbol: 'BTC-USD',
            interval: '4h',
            startDate: new Date(Date.now() - 30 * 24 * 60 * 60 * 1000), // Last 30 days
            endDate: new Date(),
            outputPath: 'test_enhanced_chart.png',
            width: 1400,
            height: 800,
            chartOptions: {
                backgroundColor: '#131722'
            }
        });

        console.log('✅ Enhanced chart generated successfully!');
        console.log('📊 Features included:');
        console.log('   • Volume bars below main chart');
        console.log('   • Current price and time display');
        console.log('   • OHLC values for latest candle');
        console.log('   • Buy/Sell signals based on MA crossover');
        console.log('   • Formatted volume display');
        console.log('\n📁 Chart saved as: test_enhanced_chart.png');

    } catch (error) {
        console.error('❌ Error:', error.message);
    } finally {
        await generator.close();
    }
}

testEnhancedChart();