kingchenc
03ceac1f3b
* feat: add Abandoned Baby candlestick pattern (CDLABANDONEDBABY) * feat: add Advance Block candlestick pattern (CDLADVANCEBLOCK) * feat: add Belt Hold candlestick pattern (CDLBELTHOLD) * feat: add Breakaway and Counterattack candlestick patterns (CDLBREAKAWAY, CDLCOUNTERATTACK) Breakaway is a 5-bar reversal: a trend gaps away on the second bar, drifts two more bars, then the fifth bar snaps back and closes inside the bar1/bar2 body gap (bullish +1, bearish -1). Counterattack is a 2-bar reversal where an opposite-coloured long second bar closes level with the first (the counterattack line; bullish +1, bearish -1). Also suppress libtest's spanless `large_stack_arrays` false positive in wickra-core test builds: the `#[test]` harness collects every test into a compiler-generated array of references that crosses clippy's 16 KB threshold once the suite passes ~2048 unit tests. The allow is scoped to `cfg(test)`, so library code is still linted for genuinely large stack arrays. * chore: sync indicator count to 254 --------- Co-authored-by: wickra-bot <wickra-bot@users.noreply.github.com>
Wickra — WebAssembly
Streaming-first technical indicators in the browser. npm install wickra-wasm — pure WebAssembly, runs anywhere a modern JS engine does.
Wickra is a multi-language technical-analysis library with a Rust core and
bindings for Python, Node.js, and WebAssembly. Every indicator is an O(1)
streaming state machine, so live trading dashboards and historical backtests
share the exact same implementation. This package is the WebAssembly binding
(wasm-bindgen, built for the web target); it exposes 200+ streaming-first
indicators across sixteen families.
Install
npm install wickra-wasm
Quick start
The module ships a default init export that loads the .wasm payload; await
it once before constructing indicators.
import init, { RSI } from 'wickra-wasm';
await init(); // load the WebAssembly module once
// Streaming: feed prices tick by tick in O(1).
const rsi = new RSI(14);
for (const price of liveFeed) {
const value = rsi.update(price); // null during warmup
if (value !== null && value > 70) {
console.log('overbought');
}
}
Constructors mirror the other bindings (new SMA(20), new MACD(12, 26, 9),
new BollingerBands(20, 2.0), …); update() returns the latest value or
null while the indicator is still warming up.
Documentation
The full indicator catalogue, guides, quickstarts, and API reference live in the main repository and documentation site:
- Repository & full indicator list: https://github.com/wickra-lib/wickra
- Docs (quickstarts, cookbook, TA-Lib migration): https://docs.wickra.org
- Runnable browser examples:
examples/wasm/
Wickra ships four bindings — Python, Node.js, WebAssembly, and Rust — that all
expose the same indicators from the shared, unsafe-forbidden Rust core.
Disclaimer
Wickra is an indicator toolkit, not a trading system. The values it computes are deterministic transforms of the input data — they are not financial advice and do not predict the market. Any use in a live trading context is at your own risk. The library is provided as is, without warranty of any kind.
License
Licensed under the PolyForm Noncommercial License 1.0.0. Personal projects, research, education, non-profits, and hobby trading bots are all fine; the one thing not allowed is commercial sale of the software or of services built around it. See LICENSE.