Source Nodes

Market data feeds for equities, crypto, and forex

Source nodes are the entry points of every strategy graph. They fetch historical OHLCV candle data and stream live tick updates from the Traderoid API. Every downstream node — indicators, logic, action — reads from one or more Source nodes as its data foundation.

Available Nodes

Stock

Equities

Fetches OHLCV candle data for US equities from the Traderoid API. Supports 50 large-cap symbols, configurable timespan and multiplier, timezone correction, and live streaming via WebSocket.

Crypto

Fetches OHLCV candle data for cryptocurrency pairs (e.g. BTC/USDT) from the Traderoid API. Supports 40 major pairs, configurable timespan and multiplier, and live streaming via WebSocket.

Forex

Fetches OHLCV candle data for currency pairs (e.g. EUR/USD) from the Traderoid API. Supports 32 major and minor pairs, configurable timespan and multiplier, timezone correction, and live streaming.

Shared Output Model

All three Source nodes emit the same OHLCVT data structure. Downstream nodes receive typed arrays — one value per closed candle.

Field	Type	Description
t	number[]	Unix timestamps (seconds) for each candle.
o	number[]	Open prices.
h	number[]	High prices.
l	number[]	Low prices.
c	number[]	Close prices.
v	number[]	Volume for each candle period.

How Data Flows

Historical fetch — On graph execution, the Source node calls the Traderoid REST API to retrieve the full historical candle series for the configured symbol and timespan.

Candle aggregation — The multiplier collapses multiple base periods into a single candle. For example, multiplier=5 on timespan=minute produces 5-minute bars.

Live streaming — After the historical load, the node subscribes to the WebSocket streamer. Incoming ticks are merged into the latest candle or appended as a new bar using the same aggregation logic.

Downstream propagation — Every time a new candle closes, the node signals all connected downstream nodes to re-evaluate with the updated arrays.