kingchenc
e595ea8bfe
Packaging fix for the `0.9.3` data layer. `0.9.3` published to crates.io, Maven Central, NuGet, npm, and the Go mirror, but the **Linux Python wheels failed to build**, so `Publish to PyPI` was skipped and no GitHub Release was attached. Root cause: the `live-binance` data layer links `native-tls` -> `openssl-sys`, and the `manylinux` / `musllinux` wheel-build containers do not ship the system OpenSSL headers. The native macOS and Windows wheels were unaffected (system TLS), which is why CI — running Python natively on the runners, where OpenSSL is present — stayed green. ### Changes - **`ci`**: install the OpenSSL headers inside the wheel container via maturin-action's `before-script-linux` (`openssl-devel` on `manylinux`, `openssl-dev` on `musllinux`) before maturin compiles. No library code changed. - **`release: bump 0.9.3 -> 0.9.4`**: version-string bump across the manual touchpoints + `CHANGELOG` `[0.9.4]`. `0.9.4` is functionally identical to `0.9.3`; it exists only because the already- published registries cannot re-release `0.9.3`. PyPI publishes for the first time starting at `0.9.4` (it skips `0.9.3`).
Wickra — Node.js
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 WASM, plus a C ABI for C, C++, C#, Go, Java, R 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 all 514 streaming-first indicators across twenty-four families.
Install
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
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.
Benchmark
benchmarks/throughput.js reports streaming and batch updates-per-second for
SMA, ATR and MACD. It measures this binding's FFI overhead, not a
cross-library ratio (the same Rust core runs under every binding) — see the
repository BENCHMARKS.md §3.
npx napi build --platform --release
node benchmarks/throughput.js
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/
Wickra ships native bindings for Python, Node.js, WASM and Rust, plus a
C ABI hub that any C-capable language (C, C++, C#, Go, Java, R) links against —
all exposing the same indicators from the shared, unsafe-forbidden Rust core.
Security
Found a security issue? Please don't open a public issue. Report it privately
via the affected repository's Security tab ("Report a vulnerability") or email
support@wickra.org with a subject line starting [wickra security]. Full
policy: https://github.com/wickra-lib/wickra/blob/main/SECURITY.md.
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 or MIT at your option.