feat: wasm binary for the oracle resolvers

.github/workflows/test.yml

@@ -32,7 +32,38 @@ jobs:
         uses: noir-lang/[email protected]
         with:
           toolchain: ${{ matrix.toolchain }}
-      # run the PRC server in the oracles directory in the background
+
+      # install wasm-bindgen-cli with the version specified in the cargo.toml file
+      - name: Install wasm-bindgen-cli
+        run: |
+          if ! command -v wasm-bindgen &> /dev/null || [ "$(wasm-bindgen --version | cut -d' ' -f2)" != "0.2.86" ]; then
+            echo "Building wasm-bindgen..."
+            cargo install cargo-binstall
+            cargo binstall [email protected] --force --no-confirm
+          fi
+      # - name: Install wasm32 target
+      #   run: rustup target add wasm32-unknown-unknown
+      # run the build.sh script in the oracles directory
+      # cargo build
+      # or alternatively as a simple command:
+      - name: Add wasm target
+        run: rustup target add wasm32-unknown-unknown
+      - name: Run build.sh
+        run: |
+          cd oracles && ./build.sh
+      # run yarn install in the oracles directory
+      - name: Run yarn install
+        uses: borales/actions-yarn@v4
+        with:
+          cmd: install
+          dir: oracles
+      # run the tests
+      - name: Run tests
+        uses: borales/actions-yarn@v4
+        with:
+          cmd: test
+          dir: oracles
+      # run the PRC server
       - name: run the PRC server
         run: |
           cd oracles && cargo build
@@ -41,6 +72,8 @@ jobs:
           # Wait for port 3000 to become available
           timeout 30 bash -c 'until nc -z localhost 3000; do sleep 1; done'
           echo "Server is ready!"
+
+      # run the noir tests with the oracle resolver
       - name: Run Noir tests with oracle resolver. 
         run:  nargo test --oracle-resolver http://127.0.0.1:3000
 

oracles/.mocharc.json

@@ -0,0 +1,5 @@
+{
+  "extension": ["ts"],
+  "spec": "test/node/**/*.test.ts",
+  "require": "ts-node/register"
+}

oracles/Cargo.toml

@@ -3,22 +3,35 @@ name = "oracle"
 version = "0.1.0"
 edition = "2021"
 
+[lib]
+crate-type = ["cdylib"]
+
 [dependencies]
 # For the server
 anyhow = "1"
 # hyper = "1.5.0"
-jsonrpsee = { version = "0.24.7", features = ["server", "http-client", "ws-client", "macros", "client-ws-transport-tls"] }
-serde = "1.0.213"
-serde_json = "1.0.132"
-tokio = "1.41.0"
-tokio-stream = { version = "0.1.16", features = ["sync"] }
 # tower = { version = "0.4.13", features= ["full"]} 
 # tower-http = { version = "0.6.1", features = ["full"] }
 tracing = "0.1.40"
 tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
-
+getrandom = { version = "*", features = ["js"] }
+serde = {version = "1.0.213", features = ["derive"]} 
+serde_json = "1.0.132"
 # For the example ops
 ark-bn254 = "0.4.0"
 ark-ff = "0.4.2"
 num-bigint = "0.4.6" # todo: find a way to remove this dep
 num-traits = "0.2.19" # todo: find a way to remove this dep
+wasm-bindgen = { version = "=0.2.86", features = ["serde-serialize"] }
+gloo-utils = { version = "0.1", features = ["serde"] }
+js-sys = "0.3.62"
+console_error_panic_hook = "0.1.7"
+
+
+[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
+
+jsonrpsee = { version = "0.24.7", features = ["server", "http-client", "ws-client", "macros", "client-ws-transport-tls"] }
+tokio = "1.41.0"
+tokio-stream = { version = "0.1.16", features = ["sync"] }
+
+

oracles/build.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+
+function require_command {
+    if ! command -v "$1" >/dev/null 2>&1; then
+        echo "Error: $1 is required but not installed." >&2
+        exit 1
+    fi
+}
+function run_or_fail {
+  "$@"
+  local status=$?
+  if [ $status -ne 0 ]; then
+    echo "Command '$*' failed with exit code $status" >&2
+    exit $status
+  fi
+}
+function run_if_available {
+  if command -v "$1" >/dev/null 2>&1; then
+    "$@"
+  else
+    echo "$1 is not installed. Please install it to use this feature." >&2
+  fi
+}
+
+require_command jq
+require_command cargo
+require_command wasm-bindgen
+# require_command wasm-opt
+
+self_path=$(dirname "$(readlink -f "$0")")
+pname=$(cargo read-manifest | jq -r '.name')
+
+NODE_DIR=$self_path/nodejs
+BROWSER_DIR=$self_path/web
+
+# Clear out the existing build artifacts as these aren't automatically removed by wasm-bindgen.
+if [ -d ./pkg/ ]; then
+    rm -r $NODE_DIR
+    rm -r $BROWSER_DIR
+fi
+
+TARGET=wasm32-unknown-unknown
+WASM_BINARY=${self_path}/target/$TARGET/release/${pname}.wasm
+
+NODE_WASM=${NODE_DIR}/${pname}_bg.wasm
+BROWSER_WASM=${BROWSER_DIR}/${pname}_bg.wasm
+
+# Build the new wasm package
+run_or_fail cargo build --lib --release --target $TARGET --package ${pname}
+run_or_fail wasm-bindgen $WASM_BINARY --out-dir $NODE_DIR --typescript --target nodejs
+run_or_fail wasm-bindgen $WASM_BINARY --out-dir $BROWSER_DIR --typescript --target web
+run_if_available wasm-opt $NODE_WASM -o $NODE_WASM -O
+run_if_available wasm-opt $BROWSER_WASM -o $BROWSER_WASM -O