kingchenc
12681e4b1b
Stacked on #222 (base `feat/c-abi-hub`), so the diff is just the additions on top of the hub foundation — no merge of #222 required. ## What this adds **Examples — full parity with rust/python/node (`examples/c/`)** - `streaming.c` upgraded to the multi-indicator (SMA/EMA/RSI/MACD + signals) demo - `backtest.c`, `multi_timeframe.c` (manual time-bucket resampling), `parallel_assets.c` (serial vs OpenMP fan-out, one handle per asset) - three educational strategies: `strategy_rsi_mean_reversion.c`, `strategy_macd_adx.c`, `strategy_bollinger_squeeze.c` - two network examples shelling out to `curl`: `fetch_btcusdt.c`, `live_binance.c` (REST poll) - two header-only helpers (`wickra_csv.h`, `wickra_strategy.h`) since the C ABI ships no IO layer - CMake builds all 11; the 9 offline ones run under `ctest` on 3 OS; the network two are built-only **Docs & metadata — surface the C ABI everywhere it was missing** - ARCHITECTURE diagram + crate table, SECURITY + THREAT_MODEL (the C ABI as the sole `unsafe` FFI surface), the three binding package READMEs, issue/PR templates, CHANGELOG, and the GitHub About template (live About + org description updated too) **Cleanup** - removed all references to the private generator tooling from public files (`bindings/c/src/lib.rs` header, `CONTRIBUTING.md`, `sync-about.yml`) Verified locally: `cargo build -p wickra-c --release`, `cmake + ctest` (9/9 pass), and `-Wall -Wextra -Wpedantic` clean on gcc 13.
74 lines
3.1 KiB
Markdown
74 lines
3.1 KiB
Markdown
# Wickra — Node.js
|
|
|
|
[](https://github.com/wickra-lib/wickra/actions/workflows/ci.yml)
|
|
[](https://codecov.io/gh/wickra-lib/wickra)
|
|
[](https://www.npmjs.com/package/wickra)
|
|
[](https://github.com/wickra-lib/wickra#license)
|
|
|
|
**Streaming-first technical indicators for Node.js. `npm install wickra` —
|
|
prebuilt native binary, no system dependencies.**
|
|
|
|
Wickra is a multi-language technical-analysis library with a Rust core and
|
|
bindings for Python, Node.js and WebAssembly, plus a C ABI for C/C++ and any
|
|
other C-capable language. Every indicator is an O(1)
|
|
streaming state machine, so live trading bots and historical backtests share
|
|
the exact same implementation. This package is the Node.js binding (napi-rs);
|
|
it exposes 200+ streaming-first indicators across sixteen families.
|
|
|
|
## Install
|
|
|
|
```bash
|
|
npm install wickra
|
|
```
|
|
|
|
The native addon ships as a prebuilt binary per platform (Linux, macOS,
|
|
Windows — x64 and arm64), selected automatically through optional
|
|
dependencies. There is nothing to compile.
|
|
|
|
## Quick start
|
|
|
|
```js
|
|
const wickra = require('wickra');
|
|
|
|
// Batch: run an indicator over a whole array.
|
|
const prices = Array.from({ length: 1000 }, (_, i) => 100 + i * 0.1);
|
|
const values = new wickra.RSI(14).batch(prices); // null during warmup
|
|
|
|
// Streaming: the same indicator, fed tick by tick in O(1).
|
|
const rsi = new wickra.RSI(14);
|
|
for (const price of liveFeed) {
|
|
const value = rsi.update(price); // no recomputation over history
|
|
if (value !== null && value > 70) {
|
|
console.log('overbought');
|
|
}
|
|
}
|
|
```
|
|
|
|
`batch(prices)` and feeding the same prices through `update()` produce
|
|
identical values — the equivalence is enforced by the test suite.
|
|
|
|
## 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 examples:** [`examples/node/`](https://github.com/wickra-lib/wickra/tree/main/examples/node)
|
|
|
|
Wickra ships native bindings for Python, Node.js, WebAssembly and Rust, plus a
|
|
C ABI hub that any C-capable language (C, C++, Go, C#, Java, R) links against —
|
|
all exposing 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 either of [Apache-2.0](https://github.com/wickra-lib/wickra/blob/main/LICENSE-APACHE)
|
|
or [MIT](https://github.com/wickra-lib/wickra/blob/main/LICENSE-MIT) at your option.
|