feat: wasm support

.github/workflows/node.yaml

@@ -111,6 +111,22 @@ jobs:
               yarn build --target aarch64-unknown-linux-musl
               /aarch64-linux-musl-cross/bin/aarch64-linux-musl-strip *.node
 
+          - host: ubuntu-latest
+            target: 'wasm32-wasip1-threads'
+            setup: |
+              wget https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-27/wasi-sdk-27.0-x86_64-linux.tar.gz
+              tar -xvf wasi-sdk-27.0-x86_64-linux.tar.gz
+            build: |
+              set -e
+              rustup install 1.88.0
+              rustup default 1.88.0
+              rustup target add wasm32-wasip1-threads
+              export WASI_SDK_PATH="$(pwd)/wasi-sdk-27.0-x86_64-linux"
+              export CMAKE_BUILD_PARALLEL_LEVEL=2
+              export TARGET_CXXFLAGS="--target=wasm32-wasi-threads --sysroot=$(pwd)/wasi-sdk-27.0-x86_64-linux/share/wasi-sysroot -pthread -mllvm -wasm-enable-sjlj -lsetjmp"
+              export TARGET_CFLAGS="$TARGET_CXXFLAGS"
+              yarn build --target wasm32-wasip1-threads
+
     name: stable - ${{ matrix.settings.target }} - node@22
     runs-on: ${{ matrix.settings.host }}
     defaults:
@@ -167,13 +183,29 @@ jobs:
         if: ${{ !matrix.settings.docker }}
         shell: bash
 
-      - name: Upload artifact
+      - name: 'Check'
+        if: ${{ matrix.settings.target != 'x86_64-pc-windows-msvc' }}
+        run: ls -la
+
+      - name: Upload artifact ${{ matrix.settings.target }}
+        if: ${{ matrix.settings.target != 'wasm32-wasip1-threads' }}
         uses: actions/upload-artifact@v4
         with:
           name: bindings-${{ matrix.settings.target }}
           path: bindings/nodejs/*.node
           if-no-files-found: error
 
+      - name: Upload artifact ${{ matrix.settings.target }}
+        if: ${{ matrix.settings.target == 'wasm32-wasip1-threads' }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: bindings-wasm32-wasi
+          if-no-files-found: error
+          path: |
+            bindings/nodejs/*.wasm
+            bindings/nodejs/zen-engine.wasi*
+            bindings/nodejs/wasi-worker*
+
   test-macOS-windows-binding:
     name: Test bindings on ${{ matrix.settings.target }} - node@${{ matrix.node }}
     needs:
@@ -216,6 +248,10 @@ jobs:
           name: bindings-${{ matrix.settings.target }}
           path: artifacts
 
+      - name: Create dirs
+        run: yarn createNpmDirs
+        shell: bash
+
       - name: Move artifacts
         run: yarn artifacts
         shell: bash
@@ -258,6 +294,15 @@ jobs:
           name: bindings-x86_64-unknown-linux-gnu
           path: artifacts
 
+      - name: List artifacts
+        run: |
+          ls -la ../../artifacts
+        shell: bash
+
+      - name: Create dirs
+        run: yarn createNpmDirs
+        shell: bash
+
       - name: Move artifacts
         run: yarn artifacts
         shell: bash
@@ -309,6 +354,10 @@ jobs:
           name: bindings-x86_64-unknown-linux-musl
           path: artifacts
 
+      - name: Create dirs
+        run: yarn createNpmDirs
+        shell: bash
+
       - name: Move artifacts
         run: yarn artifacts
         shell: bash
@@ -367,6 +416,10 @@ jobs:
           name: bindings-aarch64-unknown-linux-musl
           path: artifacts
 
+      - name: Create dirs
+        run: yarn createNpmDirs
+        shell: bash
+
       - name: Move artifacts
         run: yarn artifacts
         shell: bash
@@ -473,9 +526,16 @@ jobs:
         with:
           path: artifacts
 
+      - name: List all artifacts
+        run: ls -la ../../artifacts
+
       - name: Copy LICENSE
         run: cp ../../LICENSE .
 
+      - name: Create dirs
+        run: yarn createNpmDirs
+        shell: bash
+
       - name: Move artifacts
         run: yarn artifacts
 

bindings/nodejs/.gitignore

@@ -1,3 +1,6 @@
 *.node
 *.internal.js
-temp.d.ts
+*.tgz
+temp.d.ts
+*.wasm
+npm/

bindings/nodejs/Cargo.toml

@@ -9,6 +9,7 @@ publish = false
 crate-type = ["cdylib"]
 
 [dependencies]
+ahash = { workspace = true }
 napi = { version = "3", features = ["serde-json", "error_anyhow", "tokio_rt"] }
 napi-derive = "3"
 tokio-util = { workspace = true, features = ["rt"] }
@@ -19,5 +20,8 @@ zen-tmpl = { path = "../../core/template" }
 serde = { workspace = true, features = ["derive"] }
 json_dotpath = { workspace = true }
 
+[target.'cfg(target_family = "wasm")'.dependencies]
+iana-time-zone = { version = "0.1", features = ["fallback"] }
+
 [build-dependencies]
-napi-build = "2.1"
+napi-build = "2.3"

bindings/nodejs/Makefile

@@ -0,0 +1,4 @@
+wasm:
+	yarn exec napi build --target wasm32-wasip1-threads --output-dir npm/wasm32-wasi --release
+	mv npm/wasm32-wasi/browser.js .
+	mv npm/wasm32-wasi/zen-engine.wasm npm/wasm32-wasi/zen-engine.wasm32-wasi.wasm

bindings/nodejs/browser.js

@@ -0,0 +1 @@
+export * from '@gorules/zen-engine-wasm32-wasi'

bindings/nodejs/index.d.ts

@@ -53,6 +53,7 @@ export declare function renderTemplateSync(template: string, context: any): any
 export interface ZenConfig {
   nodesInContext?: boolean
   functionTimeoutMillis?: number
+  httpAuth?: boolean
 }
 
 export interface ZenEngineHandlerResponse {
@@ -63,6 +64,7 @@ export interface ZenEngineHandlerResponse {
 export interface ZenEngineOptions {
   loader?: (key: string) => Promise<Buffer | ZenDecisionContent>
   customHandler?: (request: ZenEngineHandlerRequest) => Promise<ZenEngineHandlerResponse>
+  httpHandler?: (request: ZenHttpHandlerRequest) => Promise<ZenHttpHandlerResponse>
 }
 
 export interface ZenEngineResponse {
@@ -85,3 +87,17 @@ export interface ZenEvaluateOptions {
   maxDepth?: number
   trace?: boolean | 'string' | 'reference' | 'referenceString'
 }
+
+export interface ZenHttpHandlerRequest {
+  method: string
+  url: string
+  body?: any
+  headers: Record<string, string>
+  params: Record<string, string>
+}
+
+export interface ZenHttpHandlerResponse {
+  status: number
+  headers: any
+  data: any
+}