chore: update ferro-ta version to 1.1.2 in Cargo.lock

- Bumped version numbers across Cargo.toml, Cargo.lock, pyproject.toml, and conda/meta.yaml to 1.1.2.
- Updated .gitignore to include new WASM build directories for Node.js and web.
- Enhanced WASM npm package to support both Node.js and browser builds with conditional exports.
- Improved CI workflows for WASM publishing and testing.
- Updated documentation to reflect new features and full indicator parity in the WASM package.

.github/workflows/CI.yml

@@ -339,7 +339,9 @@ jobs:
   sbom:
     name: Generate SBOM (Python + Rust)
     runs-on: ubuntu-latest
-    needs: publish
+    needs:
+      - publish
+      - publish-cratesio
     if: (github.event_name == 'release' && github.event.action == 'published') || (github.event_name == 'workflow_dispatch' && inputs.release)
     permissions:
       contents: write

.github/workflows/ci-wasm.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Set up Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: "20"
 
@@ -31,9 +31,9 @@ jobs:
         working-directory: wasm
         run: wasm-pack test --node
 
-      - name: Build WASM package (nodejs target)
+      - name: Build WASM package (both targets)
         working-directory: wasm
-        run: wasm-pack build --target nodejs --out-dir pkg
+        run: npm run build
 
       - name: Check API manifest is current
         run: python3 scripts/check_api_manifest.py
@@ -42,11 +42,17 @@ jobs:
         working-directory: wasm
         run: node bench.js --json ../wasm_benchmark.json
 
-      - name: Upload WASM package artifact
+      - name: Upload WASM node package artifact
         uses: actions/upload-artifact@v7
         with:
-          name: wasm-pkg
+          name: wasm-pkg-node
-          path: wasm/pkg/
+          path: wasm/node/
+
+      - name: Upload WASM web package artifact
+        uses: actions/upload-artifact@v7
+        with:
+          name: wasm-pkg-web
+          path: wasm/web/
 
       - name: Upload WASM benchmark artifact
         uses: actions/upload-artifact@v7

.github/workflows/wasm-publish.yml

@@ -4,6 +4,11 @@ on:
   release:
     types: [published]
   workflow_dispatch:
+    inputs:
+      release:
+        description: "Publish WASM package to npm"
+        type: boolean
+        default: true
 
 permissions:
   contents: read
@@ -13,13 +18,16 @@ jobs:
   publish:
     name: Build and publish to npm
     runs-on: ubuntu-latest
+    if: >-
+      (github.event_name == 'release' && github.event.action == 'published')
+      || (github.event_name == 'workflow_dispatch' && inputs.release)
     steps:
       - uses: actions/checkout@v6
 
       - name: Setup Node.js
         uses: actions/setup-node@v6
         with:
-          node-version: "24"
+          node-version: "20"
           registry-url: "https://registry.npmjs.org"
 
       - name: Install Rust and wasm-pack
@@ -28,6 +36,10 @@ jobs:
           targets: wasm32-unknown-unknown
       - run: cargo install wasm-pack
 
+      - name: Run WASM tests
+        working-directory: wasm
+        run: wasm-pack test --node
+
       - name: Build WASM package
         run: |
           cd wasm

.gitignore

@@ -37,6 +37,8 @@ env/
 # WASM build output
 wasm/pkg/
 wasm/pkg-web/
+wasm/node/
+wasm/web/
 benchmark_vs_talib.json
 wasm_benchmark.json
 .wasm_benchmark.prepush.json

CHANGELOG.md

@@ -9,6 +9,19 @@ and the project uses [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+## [1.1.2] — 2026-04-01
+
+### Changed
+
+- WASM npm package now ships both Node.js (CommonJS) and browser/web worker
+  (ESM) builds via conditional exports in package.json.
+- Fixed wasm-publish.yml: added job condition, workflow_dispatch inputs, and
+  pre-publish test gate.
+- Fixed CI.yml: SBOM job now waits for both PyPI and crates.io publish.
+- Aligned Node.js version to 20 across all CI workflows.
+- Rewrote wasm/README.md and ferro_ta_core/README.md to reflect full feature
+  parity (200+ WASM exports, 22 core modules).
+
 ## [1.1.1] — 2026-04-01
 
 ### Added

Cargo.lock

@@ -207,7 +207,7 @@ checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
 
 [[package]]
 name = "ferro_ta"
-version = "1.1.1"
+version = "1.1.2"
 dependencies = [
  "criterion",
  "ferro_ta_core",
@@ -222,7 +222,7 @@ dependencies = [
 
 [[package]]
 name = "ferro_ta_core"
-version = "1.1.1"
+version = "1.1.2"
 dependencies = [
  "criterion",
  "serde",

Cargo.toml

@@ -5,7 +5,7 @@ resolver = "2"
 
 [package]
 name = "ferro_ta"
-version = "1.1.1"
+version = "1.1.2"
 edition = "2021"
 description = "Rust-powered Python technical analysis library with a TA-Lib-compatible API"
 license = "MIT"
@@ -30,7 +30,7 @@ ndarray = "0.16"
 rayon = "1.10"
 log = "0.4"
 pyo3-log = "0.12"
-ferro_ta_core = { path = "crates/ferro_ta_core", version = "1.1.1", features = ["serde"] }
+ferro_ta_core = { path = "crates/ferro_ta_core", version = "1.1.2", features = ["serde"] }
 
 [dev-dependencies]
 criterion = { version = "0.8", features = ["html_reports"] }

PLATFORMS.md

@@ -71,6 +71,6 @@ pip install ferro-ta --no-binary ferro-ta
 
 ## Known limitations
 
-- WASM binding: only 6 indicators exposed (see `wasm/README.md`).
+- WASM binding: full feature parity with 200+ exports including all TA-Lib indicators, candlestick patterns, streaming API, options, futures, and backtesting (see `wasm/README.md`).
 - Python 3.14+: untested; may work with `PYO3_USE_ABI3_FORWARD_COMPATIBILITY=1`.
 - 32-bit platforms: not officially supported; source builds may succeed.

conda/meta.yaml

@@ -1,5 +1,5 @@
 {% set name = "ferro-ta" %}
-{% set version = "1.1.1" %}
+{% set version = "1.1.2" %}
 
 package:
   name: {{ name|lower }}

crates/ferro_ta_core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ferro_ta_core"
-version = "1.1.1"
+version = "1.1.2"
 edition = "2021"
 description = "Pure Rust core indicator library — no PyO3, no numpy dependency"
 license = "MIT"

crates/ferro_ta_core/README.md

@@ -7,13 +7,13 @@ PyO3, NumPy, or Python runtime dependency, which makes it a good fit for:
 
 - Rust-native technical analysis workloads
 - custom services and backtesting engines
-- future non-Python bindings such as WASM and other FFI layers
+- non-Python bindings (WASM, FFI)
 
 ## Installation
 
 ```toml
 [dependencies]
-ferro_ta_core = "1.1.1"
+ferro_ta_core = "1.1.2"
 ```
 
 ## Design
@@ -25,12 +25,31 @@ ferro_ta_core = "1.1.1"
 
 ## Modules
 
-- `overlap` - moving averages, MACD, Bollinger Bands
+| Module | Functions | Highlights |
-- `momentum` - RSI, MOM
+|--------|-----------|------------|
-- `volatility` - ATR, TRANGE
+| `overlap` | 20 | SMA, EMA, WMA, DEMA, TEMA, TRIMA, KAMA, T3, BBANDS, MACD, MACDFIX, MACDEXT, SAR, SAREXT, MAMA, MIDPOINT, MIDPRICE, MA, MAVP, Hull MA |
-- `volume` - OBV
+| `momentum` | 26 | RSI, MOM, STOCH, STOCHF, ADX, ADXR, DX, +DI, -DI, +DM, -DM, ROC, WILLR, AROON, CCI, BOP, STOCHRSI, APO, PPO, CMO, TRIX, ULTOSC |
-- `statistic` - STDDEV
+| `volatility` | 3 | ATR, NATR, TRANGE |
-- `math` - rolling SUM/MAX/MIN helpers
+| `volume` | 4 | OBV, MFI, AD, ADOSC |
+| `pattern` | 61 | All TA-Lib candlestick patterns (CDL2CROWS through CDLXSIDEGAP3METHODS) |
+| `statistic` | 9 | STDDEV, VAR, LINEARREG, LINEARREG_SLOPE/INTERCEPT/ANGLE, TSF, BETA, CORREL |
+| `math` | 24 | Rolling SUM/MAX/MIN/MAXINDEX/MININDEX, element-wise ADD/SUB/MULT/DIV, 15 transforms (trig, exp, log, sqrt, ceil, floor) |
+| `price_transform` | 4 | AVGPRICE, MEDPRICE, TYPPRICE, WCLPRICE |
+| `cycle` | 7 | Hilbert Transform: TRENDLINE, DCPERIOD, DCPHASE, PHASOR, SINE, TRENDMODE |
+| `extended` | 10 | VWAP, VWMA, Supertrend, Donchian, Keltner, Ichimoku, Pivot Points, Hull MA, Chandelier Exit, Choppiness Index |
+| `streaming` | 9 | Stateful bar-by-bar: SMA, EMA, RSI, ATR, BBands, MACD, Stoch, VWAP, Supertrend |
+| `batch` | 8 | Vectorized multi-column: batch_sma/ema/rsi/atr/stoch/adx, run_close/hlc_indicators |
+| `backtest` | 19 | Signal generators, close-only and OHLCV engines, walk-forward, Monte Carlo, performance metrics |
+| `options` | 18 | Black-Scholes/Black-76 pricing, Greeks, implied volatility, IV rank/percentile/zscore, smile metrics, chain analytics |
+| `futures` | 14 | Basis, annualized basis, carry, roll (weighted/back-adjusted/ratio), curve analysis, synthetic forward/spot |
+| `portfolio` | 10 | Beta, correlation matrix, drawdown, relative strength, spread, ratio, z-score, portfolio volatility |
+| `signals` | 4 | Rank values, compose rank, top/bottom N indices |
+| `alerts` | 3 | Threshold crossings, cross detection, alert bar collection |
+| `regime` | 4 | ADX regime, combined regime, CUSUM breaks, variance breaks |
+| `aggregation` | 3 | Tick bars, volume bars, time bars from trade data |
+| `resampling` | 2 | Volume bars, OHLCV aggregation by label |
+| `chunked` | 4 | Trim overlap, stitch chunks, make chunk ranges, forward fill NaN |
+| `crypto` | 3 | Funding cumulative PnL, continuous bar labels, session boundaries |
 
 ## Example
 
@@ -49,18 +68,7 @@ fn main() {
 
 ## Relationship To `ferro-ta`
 
-The published Python package:
+The published Python package (`ferro-ta` on PyPI) wraps this crate with PyO3 bindings and adds NumPy conversion, pandas/polars wrappers, and higher-level Python tooling. The WASM package (`ferro-ta-wasm` on npm) also wraps this crate with full feature parity.
-
-- crate: `ferro_ta`
-- PyPI package: `ferro-ta`
-
-wraps this crate with PyO3 bindings and adds:
-
-- NumPy conversion
-- pandas/polars wrappers
-- streaming classes
-- batch helpers
-- higher-level Python tooling
 
 If you only need Rust indicator functions, use `ferro_ta_core` directly.
 

docs/changelog.rst

@@ -1,7 +1,7 @@
 Release Notes
 =============
 
-These docs track package version ``1.1.1``.
+These docs track package version ``1.1.2``.
 
 1.1.0-audit (2026-03-28)
 ------------------------

docs/support_matrix.rst

@@ -180,7 +180,7 @@ For source builds, packaging details, and platform notes, see
 Release status
 --------------
 
-These docs track package version ``1.1.1``.
+These docs track package version ``1.1.2``.
 
 - Release notes by version: :doc:`changelog`
 - Canonical project changelog: `CHANGELOG.md <https://github.com/pratikbhadane24/ferro-ta/blob/main/CHANGELOG.md>`_

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "ferro-ta"
-version = "1.1.1"
+version = "1.1.2"
 description = "Rust-powered Python technical analysis library with a TA-Lib-compatible API"
 readme = "README.md"
 license = { text = "MIT" }

scripts/build_api_manifest.py

@@ -192,7 +192,7 @@ def _extract_wasm_exports(root: Path) -> list[str]:
             return sorted(exports)
 
     # Fallback to generated declarations if source parsing did not find exports.
-    dts_path = root / "wasm" / "pkg" / "ferro_ta_wasm.d.ts"
+    dts_path = root / "wasm" / "node" / "ferro_ta_wasm.d.ts"
     if dts_path.exists():
         for line in dts_path.read_text(encoding="utf-8").splitlines():
             line = line.strip()

scripts/pre_push_checks.sh

@@ -132,7 +132,7 @@ run_wasm() {
     cd wasm
     trap 'rm -f "$benchmark_json"' EXIT
     run_cmd wasm-pack test --node
-    run_cmd wasm-pack build --target nodejs --out-dir pkg
+    run_cmd npm run build
     run_cmd node bench.js --json "$benchmark_json"
   )
 }

tests/integration/test_wasm_node_conformance.py

@@ -19,7 +19,7 @@ SCRIPT = WASM_DIR / "conformance_node.js"
 def _write_node_conformance_script(path: Path) -> None:
     path.write_text(
         """
-const wasm = require("./pkg/ferro_ta_wasm.js");
+const wasm = require("./node/ferro_ta_wasm.js");
 
 function toArray(x) {
   return Array.from(x, (v) => (Number.isNaN(v) ? null : Number(v)));

uv.lock

@@ -950,7 +950,7 @@ wheels = [
 
 [[package]]
 name = "ferro-ta"
-version = "1.1.0"
+version = "1.1.2"
 source = { editable = "." }
 dependencies = [
     { name = "numpy" },

wasm/Cargo.lock

@@ -49,11 +49,11 @@ checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
 [[package]]
 name = "ferro_ta_core"
-version = "1.1.1"
+version = "1.1.2"
 
 [[package]]
 name = "ferro_ta_wasm"
-version = "1.1.1"
+version = "1.1.2"
 dependencies = [
  "ferro_ta_core",
  "js-sys",

wasm/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ferro_ta_wasm"
-version = "1.1.1"
+version = "1.1.2"
 edition = "2021"
 description = "WebAssembly bindings for ferro-ta technical analysis indicators"
 license = "MIT"

wasm/README.md

@@ -1,53 +1,42 @@
 # ferro-ta WASM
 
-WebAssembly bindings for the [ferro-ta](https://github.com/pratikbhadane24/ferro-ta) technical analysis library.
+WebAssembly bindings for the [ferro-ta](https://github.com/pratikbhadane24/ferro-ta) technical analysis library. Full feature parity with the Python and Rust core packages.
 
 ## Install from npm
 
-Once published, install the Node.js build from npm:
-
 ```bash
 npm install ferro-ta-wasm
 ```
 
 ```javascript
-const { sma, ema, wma, rsi, adx, mfi, bbands, atr, obv, macd } = require('ferro-ta-wasm');
+const ferro = require('ferro-ta-wasm');
 
 const close = new Float64Array([44.34, 44.09, 44.15, 43.61, 44.33, 44.83, 45.10]);
-const smaOut = sma(close, 3);
+console.log('SMA:', Array.from(ferro.sma(close, 3)));
-console.log('SMA:', Array.from(smaOut));
+console.log('RSI:', Array.from(ferro.rsi(close, 14)));
 ```
 
-> **Decision**: We chose WebAssembly (wasm-bindgen / wasm-pack) as the second binding because it runs in
+## Available Indicators (200+ exports)
-> browsers *and* Node.js without any native addons, and shares zero unsafe FFI surface with the Python
-> build.  Node.js users get a pure-JS entry point; browser users get the same `.wasm` file.
 
-## Available Indicators
+| Category | Functions | Examples |
-
+|----------|-----------|----------|
-| Category   | Function      | Parameters                                         | Returns |
+| Overlap Studies (20) | Moving averages, bands, SAR | `sma`, `ema`, `wma`, `dema`, `tema`, `trima`, `kama`, `t3`, `bbands`, `macd`, `macdfix`, `macdext`, `sar`, `sarext`, `mama`, `midpoint`, `midprice`, `ma`, `mavp`, `hull_ma` |
-|------------|---------------|----------------------------------------------------|---------|
+| Momentum (26) | Oscillators, directional movement | `rsi`, `mom`, `stoch`, `stochf`, `adx`, `adxr`, `dx`, `plus_di`, `minus_di`, `roc`, `willr`, `aroon`, `aroonosc`, `cci`, `bop`, `stochrsi`, `apo`, `ppo`, `cmo`, `trix_indicator`, `ultosc` |
-| Overlap    | `sma`         | `close: Float64Array, timeperiod: number`          | `Float64Array` |
+| Candlestick Patterns (61) | All TA-Lib patterns | `cdlhammer`, `cdlengulfing`, `cdldoji`, `cdlmorningstar`, `cdlshootingstar`, ... (all 61) |
-| Overlap    | `ema`         | `close: Float64Array, timeperiod: number`          | `Float64Array` |
+| Volatility (3) | True range, ATR | `atr`, `natr`, `trange` |
-| Overlap    | `wma`         | `close: Float64Array, timeperiod: number`          | `Float64Array` |
+| Volume (6) | On-balance volume, accumulation | `obv`, `mfi`, `vwap`, `vwma`, `ad`, `adosc` |
-| Overlap    | `bbands`      | `close, timeperiod, nbdevup, nbdevdn`              | `Array[upper, middle, lower]` |
+| Price Transforms (4) | Synthetic prices | `avgprice`, `medprice`, `typprice`, `wclprice` |
-| Momentum   | `rsi`         | `close: Float64Array, timeperiod: number`          | `Float64Array` |
+| Cycle / Hilbert (6) | Hilbert Transform suite | `ht_trendline`, `ht_dcperiod`, `ht_dcphase`, `ht_phasor`, `ht_sine`, `ht_trendmode` |
-| Momentum   | `adx`         | `high, low, close: Float64Array, timeperiod`       | `Float64Array` |
+| Statistics (10) | Regression, correlation | `stddev`, `var`, `linearreg`, `linearreg_slope`, `linearreg_intercept`, `linearreg_angle`, `tsf`, `beta_rolling`, `correl` |
-| Momentum   | `macd`        | `close, fastperiod, slowperiod, signalperiod`      | `Array[macd, signal, hist]` |
+| Math (19) | Operators and transforms | `math_add`, `math_sub`, `math_mult`, `math_div`, `transform_sin`, `transform_cos`, `transform_exp`, `transform_sqrt`, ... |
-| Momentum   | `mom`         | `close: Float64Array, timeperiod: number`          | `Float64Array` |
+| Extended (10) | Supertrend, channels, Ichimoku | `supertrend`, `donchian`, `keltner_channels`, `ichimoku`, `pivot_points`, `chandelier_exit`, `choppiness_index` |
-| Momentum   | `stochf`      | `high, low, close, fastk_period, fastd_period`     | `Array[fastk, fastd]` |
+| Streaming API (9 classes) | Bar-by-bar stateful | `WasmStreamingSMA`, `WasmStreamingEMA`, `WasmStreamingRSI`, `WasmStreamingATR`, `WasmStreamingBBands`, `WasmStreamingMACD`, `WasmStreamingStoch`, `WasmStreamingVWAP`, `WasmStreamingSupertrend` |
-| Volatility | `atr`         | `high, low, close: Float64Array, timeperiod`       | `Float64Array` |
+| Options (14) | Pricing, Greeks, IV | `black_scholes_price`, `black_76_price`, `black_scholes_greeks`, `implied_volatility`, `iv_rank`, `smile_metrics`, ... |
-| Volume     | `obv`         | `close: Float64Array, volume: Float64Array`        | `Float64Array` |
+| Futures (12) | Basis, roll, curve | `futures_basis`, `annualized_basis`, `roll_yield`, `weighted_continuous`, `calendar_spreads`, `curve_summary`, ... |
-| Volume     | `mfi`         | `high, low, close, volume: Float64Array, timeperiod` | `Float64Array` |
+| Backtesting (9) | Signal generation, engines | `backtest_core`, `backtest_ohlcv`, `rsi_threshold_signals`, `macd_crossover_signals`, `walk_forward_indices`, `monte_carlo_bootstrap`, ... |
-
+| Alerts & Regime (7) | Signals and regime detection | `check_threshold`, `check_cross`, `regime_adx`, `regime_combined`, `detect_breaks_cusum` |
-### Adding more indicators
+| Batch & Portfolio (9) | Multi-asset analytics | `batch_sma`, `batch_ema`, `batch_rsi`, `correlation_matrix`, `portfolio_volatility`, `drawdown_series` |
-
+| Aggregation (8) | Tick/volume/time bars | `aggregate_tick_bars`, `aggregate_volume_bars_ticks`, `volume_bars`, `ohlcv_agg` |
-WASM exports live in `src/lib.rs` and can either implement logic directly or delegate to `ferro_ta_core`.
-To add a new indicator:
-
-1. Add a `#[wasm_bindgen]` export in `src/lib.rs` (prefer delegating to `ferro_ta_core` where possible).
-2. Add at least two `#[wasm_bindgen_test]` tests covering output length and a known value.
-3. Update this README table.
-4. Run `wasm-pack test --node` to verify.
 
 ## Prerequisites
 
@@ -57,91 +46,64 @@ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
 
 # Install wasm-pack
 curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
-# OR via cargo:
-cargo install wasm-pack
 ```
 
 ## Build
 
 ```bash
 cd wasm/
-wasm-pack build --target nodejs --out-dir pkg
+
+# Build both Node.js and web targets
+npm run build
+
+# Or build individually:
+npm run build:node   # → node/
+npm run build:web    # → web/
 ```
 
-This produces a `pkg/` directory containing:
+This produces two directories:
-- `ferro_ta_wasm.js` — JavaScript glue code
+- `node/` -- CommonJS glue for Node.js (`require()`)
-- `ferro_ta_wasm_bg.wasm` — compiled WebAssembly binary
+- `web/` -- ESM glue for browsers and web workers (`import`)
-- `ferro_ta_wasm.d.ts` — TypeScript declarations
 
-For a browser build:
+Both contain `ferro_ta_wasm.js`, `ferro_ta_wasm_bg.wasm`, and `ferro_ta_wasm.d.ts`.
-
-```bash
-wasm-pack build --target web --out-dir pkg-web
-```
 
 ## Usage (Node.js)
 
 ```javascript
-const { sma, ema, wma, rsi, adx, mfi, bbands, atr, obv, macd } = require('./pkg/ferro_ta_wasm.js');
+const {
+  sma, ema, rsi, bbands, macd, atr, adx, obv, mfi,
+  cdlhammer, cdlengulfing,
+  WasmStreamingSMA,
+} = require('ferro-ta-wasm');
 
 const close = new Float64Array([44.34, 44.09, 44.15, 43.61, 44.33, 44.83, 45.10]);
+const high  = new Float64Array([45.0, 46.0, 47.0, 46.0, 45.0, 44.0, 45.0]);
+const low   = new Float64Array([43.0, 44.0, 45.0, 44.0, 43.0, 42.0, 43.0]);
 
-// Simple Moving Average (period 3)
+// Indicators
-const smaOut = sma(close, 3);
+console.log('SMA:', Array.from(sma(close, 3)));
-console.log('SMA:', Array.from(smaOut));  // [ NaN, NaN, 44.193, ... ]
+console.log('RSI:', Array.from(rsi(close, 5)));
 
-// RSI (period 5)
+// Multi-output
-const rsiOut = rsi(close, 5);
-console.log('RSI:', Array.from(rsiOut));
-
-// WMA (period 5)
-const wmaOut = wma(close, 5);
-console.log('WMA:', Array.from(wmaOut));
-
-// Bollinger Bands (period 5, ±2σ) — returns [upper, middle, lower]
 const [upper, middle, lower] = bbands(close, 5, 2.0, 2.0);
-console.log('BBANDS upper:', Array.from(upper));
+const [macdLine, signal, hist] = macd(close, 3, 5, 2);
 
-// MACD (fast=3, slow=5, signal=2) — returns [macd_line, signal_line, histogram]
+// Streaming (bar-by-bar)
-const [macdLine, signalLine, histogram] = macd(close, 3, 5, 2);
+const stream = new WasmStreamingSMA(3);
-console.log('MACD:', Array.from(macdLine));
+for (const price of close) {
-console.log('Signal:', Array.from(signalLine));
+  console.log('streaming SMA:', stream.update(price));
-console.log('Histogram:', Array.from(histogram));
+}
-
-// ATR (period 3)
-const high   = new Float64Array([45.0, 46.0, 47.0, 46.0, 45.0, 44.0, 45.0]);
-const low    = new Float64Array([43.0, 44.0, 45.0, 44.0, 43.0, 42.0, 43.0]);
-const atrOut = atr(high, low, close, 3);
-console.log('ATR:', Array.from(atrOut));
-
-// ADX (period 3)
-const adxOut = adx(high, low, close, 3);
-console.log('ADX:', Array.from(adxOut));
-
-// OBV
-const volume  = new Float64Array([1000, 1200, 900, 1500, 800, 600, 700]);
-const obvOut  = obv(close, volume);
-console.log('OBV:', Array.from(obvOut));
-
-// MFI (period 3)
-const mfiOut = mfi(high, low, close, volume, 3);
-console.log('MFI:', Array.from(mfiOut));
 ```
 
 ## Usage (Browser)
 
 ```html
 <script type="module">
-  import init, { sma, macd } from './pkg-web/ferro_ta_wasm.js';
+  import init, { sma, rsi, macd } from './pkg-web/ferro_ta_wasm.js';
-  await init();  // loads the .wasm binary
+  await init();
 
   const close = new Float64Array([44.34, 44.09, 44.15, 43.61, 44.33]);
-  const smaOut = sma(close, 3);
+  console.log('SMA:', Array.from(sma(close, 3)));
-  console.log('SMA:', Array.from(smaOut));
-
-  // MACD
-  const [macdLine, signal, hist] = macd(close, 3, 5, 2);
-  console.log('MACD line:', Array.from(macdLine));
 </script>
 ```
 
@@ -152,22 +114,12 @@ cd wasm/
 wasm-pack test --node
 ```
 
-## CI Artifact
-
-Every CI run on `main` builds the WASM package and uploads it as a GitHub Actions
-artifact named `wasm-pkg`.  To download the latest pre-built package without building
-from source:
-
-1. Go to the [Actions tab](https://github.com/pratikbhadane24/ferro-ta/actions).
-2. Open the latest successful CI run.
-3. Download the `wasm-pkg` artifact from the **Artifacts** section.
-4. Unzip and use `pkg/ferro_ta_wasm.js` directly in your project.
-
 ## Limitations
 
-- Only 12 indicators are currently exposed (SMA, EMA, WMA, BBANDS, RSI, ADX, MACD, MOM, STOCHF, ATR, OBV, MFI).
+- Large arrays (> 10M bars) may be slow due to JS-WASM memory copies. For high-throughput use cases prefer the Python (PyO3) binding.
-  Additional indicators will be added following the same pattern in `src/lib.rs`.
+- WASM does not support multi-threading natively in browsers (SharedArrayBuffer requires COOP/COEP headers).
-- Large arrays (> 10M bars) may be slow due to JS↔WASM memory copies.  For high-throughput
+- The npm package ships both Node.js (`require`) and browser/web worker (`import`) builds. Conditional exports in `package.json` select the right one automatically.
-  use cases prefer the Python (PyO3) binding.
+
-- WASM does not support multi-threading natively in browsers (SharedArrayBuffer requires
+## License
-  COOP/COEP headers).
+
+MIT

wasm/bench.js

@@ -2,7 +2,7 @@ const fs = require("node:fs");
 const path = require("node:path");
 const { performance } = require("node:perf_hooks");
 
-const wasm = require("./pkg/ferro_ta_wasm.js");
+const wasm = require("./node/ferro_ta_wasm.js");
 
 function parseArgs(argv) {
   const args = { bars: 100000, json: null };

wasm/package.json

@@ -1,14 +1,29 @@
 {
   "name": "ferro-ta-wasm",
-  "version": "1.1.1",
+  "version": "1.1.2",
   "description": "WebAssembly bindings for ferro-ta technical analysis indicators",
-  "main": "pkg/ferro_ta_wasm.js",
+  "main": "node/ferro_ta_wasm.js",
-  "types": "pkg/ferro_ta_wasm.d.ts",
+  "module": "web/ferro_ta_wasm.js",
-  "files": ["pkg"],
+  "types": "node/ferro_ta_wasm.d.ts",
+  "exports": {
+    ".": {
+      "node": {
+        "types": "./node/ferro_ta_wasm.d.ts",
+        "require": "./node/ferro_ta_wasm.js"
+      },
+      "default": {
+        "types": "./web/ferro_ta_wasm.d.ts",
+        "import": "./web/ferro_ta_wasm.js"
+      }
+    }
+  },
+  "files": ["node", "web"],
   "scripts": {
-    "build": "wasm-pack build --target nodejs --out-dir pkg",
+    "build": "npm run build:node && npm run build:web",
+    "build:node": "wasm-pack build --target nodejs --out-dir node && node -e \"require('fs').rmSync('node/.gitignore', { force: true }); require('fs').rmSync('node/package.json', { force: true });\"",
+    "build:web": "wasm-pack build --target web --out-dir web && node -e \"require('fs').rmSync('web/.gitignore', { force: true }); require('fs').rmSync('web/package.json', { force: true });\"",
     "bench": "node bench.js",
-    "prepack": "npm run build && node -e \"require('fs').rmSync('pkg/.gitignore', { force: true })\"",
+    "prepack": "npm run build",
     "test": "wasm-pack test --node"
   },
   "license": "MIT",