59c435fbd5
Normalises whitespace in sources committed earlier in this branch before rustfmt was run over them (Node/WASM bindings, and three core indicator test modules), and records the wasm-bindgen-test dependency tree added in B6 into Cargo.lock. No functional change; cargo fmt --all --check is now clean.
wickra-wasm
WebAssembly bindings for the Wickra streaming-first technical indicators library.
Build
You need wasm-pack and the
wasm32-unknown-unknown Rust target:
rustup target add wasm32-unknown-unknown
cargo install wasm-pack
Then from the repository root:
wasm-pack build bindings/wasm --target web --release --features panic-hook
The compiled package lands in bindings/wasm/pkg/. Targets:
--target webfor native ES modules in browsers--target bundlerfor webpack/Vite/Rollup--target nodejsfor Node.js
Example
import init, { SMA, RSI, MACD, version } from "./pkg/wickra_wasm.js";
await init();
console.log("wickra:", version());
// Streaming
const rsi = new RSI(14);
for (const price of livePrices) {
const v = rsi.update(price);
if (v !== undefined && v > 70) console.log("overbought");
}
// Batch (returns a Float64Array; NaN for warmup positions)
const sma = new SMA(20).batch(new Float64Array(historicalPrices));
An interactive demo lives in bindings/wasm/examples/index.html. After building
the package serve the bindings/wasm/ directory and open examples/index.html.