Candlestick Chart in Python with Plotly and OHLCV Data
Build a Python candlestick chart with Plotly and Bitcoin OHLCV data. Add volume, handle UTC timestamps, and save an interactive HTML chart with SiftingIO.
The SiftingIO Blog
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Engineering deep-dives, market analysis, and product updates from the SiftingIO team. How we build real-time market data infrastructure across crypto, FX, and equities.
Latest posts
Gold-silver ratio in Python: calculate it from API prices
Calculate the gold-silver ratio with Python and commodity price data. Match timestamps, preserve missing bars and avoid misleading ratio candles.
Forex API JSON: build a multi-pair watchlist in JavaScript
Build a forex watchlist from one SiftingIO JSON snapshot. Use Node.js to request multiple pairs, preserve missing rows and label timestamps correctly.
Normalize prices to 100 in Python: compare market data
Compare forex, gold, stocks and crypto on one chart. Rebase prices to 100 in Python with a shared baseline, tested pandas code and clear handling of gaps.
Market data API caching: TTL, cache keys and shared requests
Cache market data API responses with a tested Node.js example. Learn TTL, request coalescing, safe cache keys and why cache age is not price age.
Currency conversion in JavaScript: rates, rounding and formatting
Build a JavaScript currency converter with direct and inverse FX rates, exact decimal rounding and Intl.NumberFormat. Includes code, examples and tests.
Stop-loss and take-profit in the same candle: OHLC backtests
Detect same-candle stop-loss and take-profit ambiguity in Python, compare fill assumptions, and see when finer OHLCV data can resolve the sequence.
Historical forex data in CSV and Excel: a practical guide
Download historical forex data as CSV or Excel. Start with EURUSD, check UTC timestamps and candle completeness, then calculate price changes in a worksheet.
Market data monitoring with Prometheus: detect old prices and silent feeds
Monitor tick age, silent feeds and failed market-status polls with a small Python metrics adapter, Prometheus alerts and a credential-free demo.