rust-inventory-processor

Rust/WASM implementation of inventory history processor for TypeScript. Processes inventory history data and returns merged entries with storage duration.

Build

# Prerequisites
rustup default stable
rustup target add wasm32-unknown-unknown
cargo install wasm-pack   # or: cargo install wasm-pack --version 0.12.1

# Build WASM (Node.js backend)
wasm-pack build --target nodejs --features wasm

Output: pkg/ with rust_inventory_processor.js, rust_inventory_processor_bg.wasm, rust_inventory_processor.d.ts

Test

# Rust test (native, no WASM runtime)
cargo test --features wasm wasm_process -- --nocapture

# Node test with sample data
node scripts/test-wasm.mjs
node scripts/test-wasm.mjs tests/data/sample-input.json

Use in TypeScript

# Add to package.json
"rust-inventory-processor": "file:../rust-implement/pkg"

# Or after publish to npm
npm install rust-inventory-processor

import { loadRustInventoryProcessor } from './processor/inventory-history-processor.wasm-loader'

// On app bootstrap
await loadRustInventoryProcessor()

Publish to npm

wasm-pack build --target nodejs --features wasm
wasm-pack publish --access public

Project structure

rust-implement/
├── Cargo.toml
├── src/
│   ├── lib.rs                 # Entry, re-exports
│   ├── wasm.rs                # WASM bindings, JSON conversion
│   └── process_inventory_list.rs  # Core logic
├── tests/
│   ├── wasm_test.rs           # Rust test
│   └── data/
│       ├── sample-input.json
│       └── sample-input-snake.json
├── scripts/
│   └── test-wasm.mjs          # Node test script
├── pkg/                       # Output (after wasm-pack build)
└── WASM_BUILD_GUIDE.md        # Detailed guide

License

MIT