feat(wasm): support for NPM and Browser

.github/workflows/ci.yml

@@ -62,9 +62,30 @@ jobs:
       - name: Build
         run: cargo lambda build
 
-  test_cf:
+  test_wasm:
     name: Run Tests (WASM)
     runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./tailcall-wasm
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Rust
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          target: wasm32-unknown-unknown
+
+      - name: Install Wasm Pack
+        run: cargo install wasm-bindgen-cli --vers "0.2.92"
+
+      - name: Test WASM
+        run: |
+          cargo install wasm-pack
+          wasm-pack test --node
+
+  test_cf:
+    name: Run Tests (Cloudflare)
+    runs-on: ubuntu-latest
     defaults:
       run:
         working-directory: ./tailcall-cloudflare
@@ -77,9 +98,6 @@ jobs:
         with:
           target: wasm32-unknown-unknown
 
-      - name: Build WASM
-        run: cargo check --lib --target wasm32-unknown-unknown
-        working-directory: ./tailcall-cloudflare
       - name: Install Node.js
         uses: actions/setup-node@v4
         with:
@@ -211,7 +229,7 @@ jobs:
   # TODO: move to separate file to separate responsibilities
   release:
     name: Release
-    needs: [setup_build_matrix, test, draft_release, check_if_build, test_cf]
+    needs: [setup_build_matrix, test, draft_release, check_if_build, test_cf, test_wasm]
     # TODO: put a condition to separate job that other will depend on to remove duplication?
     if: github.event_name == 'push' && github.ref == 'refs/heads/main' && (needs.check_if_build.outputs.check_if_build == 'true')
     runs-on: ${{ matrix.os || 'ubuntu-latest' }}
@@ -363,15 +381,18 @@ jobs:
         with:
           node-version: 20.11.0
           registry-url: https://registry.npmjs.org
+      - name: Setup .npmrc file to publish to npm
+        run: echo "//registry.npmjs.org/:_authToken=${{ secrets.NPM_TOKEN }}" > ~/.npmrc
       - name: Install dependencies
         run: |
-          cd npm
+          cd tailcall-wasm
           npm install
-      - name: Run generate-root.js script
+      - name: Run publish script
         env:
-          APP_VERSION: ${{needs.draft_release.outputs.create_release_name }}
+          APP_VERSION: ${{ needs.draft_release.outputs.create_release_name }}
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
         run: |
-          cd npm
+          cd tailcall-wasm
           npm run gen-root -- --version ${{ env.APP_VERSION }} --name @tailcallhq/tailcall
       - name: Setup .npmrc file to publish to npm
         run: echo "//registry.npmjs.org/:_authToken=$NODE_AUTH_TOKEN" > ~/.npmrc

Cargo.toml

@@ -94,7 +94,7 @@ async-std = { version = "1.12.0", features = [
     "wasm-bindgen-futures",
     "unstable",
 ] }
-ttl_cache = { version = "0.5.1", features = ["stats"] }
+ttl_cache = "0.5.1"
 protox = "0.6.0"
 protox-parse = "0.6.0"
 prost-reflect = { version = "0.13.1", features = ["serde"] }
@@ -237,7 +237,9 @@ members = [
     "tailcall-fixtures",
     "tailcall-upstream-grpc",
     "tailcall-tracker",
-    "tailcall-hasher",
+    "tailcall-wasm",
+    "tailcall-hasher"
+,
     "tailcall-http-cache",
     "tailcall-version",
 ]

src/core/cache.rs

@@ -1,5 +1,6 @@
 use std::hash::Hash;
 use std::num::NonZeroU64;
+use std::sync::atomic::{AtomicUsize, Ordering};
 use std::sync::{Arc, RwLock};
 use std::time::Duration;
 
@@ -9,6 +10,8 @@
 
 pub struct InMemoryCache<K: Hash + Eq, V> {
     data: Arc<RwLock<TtlCache<K, V>>>,
+    hits: AtomicUsize,
+    miss: AtomicUsize,
 }
 
 // TODO: take this from the user instead of hardcoding it
@@ -22,7 +25,11 @@
 
 impl<K: Hash + Eq, V: Clone> InMemoryCache<K, V> {
     pub fn new() -> Self {
-        InMemoryCache { data: Arc::new(RwLock::new(TtlCache::new(CACHE_CAPACITY))) }
+        InMemoryCache {
+            data: Arc::new(RwLock::new(TtlCache::new(CACHE_CAPACITY))),
+            hits: AtomicUsize::new(0),
+            miss: AtomicUsize::new(0),
+        }
     }
 }
 
@@ -40,13 +47,20 @@
     }
 
     async fn get<'a>(&'a self, key: &'a K) -> cache::Result<Option<Self::Value>> {
-        Ok(self.data.read().unwrap().get(key).cloned())
+        let val = self.data.read().unwrap().get(key).cloned();
+        if val.is_some() {
+            self.hits.fetch_add(1, Ordering::Relaxed);
+        } else {
+            self.miss.fetch_add(1, Ordering::Relaxed);
+        }
+        Ok(val)
     }
 
     fn hit_rate(&self) -> Option<f64> {
         let cache = self.data.read().unwrap();
-        let hits = cache.hit_count();
-        let misses = cache.miss_count();
+        let hits = self.hits.load(Ordering::Relaxed);
+        let misses = self.miss.load(Ordering::Relaxed);
+
         drop(cache);
 
         if hits + misses > 0 {

tailcall-wasm/Cargo.toml

@@ -0,0 +1,28 @@
+[package]
+name = "tailcall-wasm"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+tailcall = {path = "..", default-features = false}
+wasm-bindgen = "0.2.92"
+wasm-bindgen-futures = "0.4.42"
+anyhow = "1.0.83"
+async-trait = "0.1.80"
+console_error_panic_hook = "0.1.7"
+reqwest = { version = "0.11", default-features = false }
+async-std = "1.12.0"
+tracing = "0.1.40"
+tracing-subscriber = "0.3.18"
+tracing-subscriber-wasm = "0.1.0"
+hyper = { version = "0.14.28", default-features = false }
+dashmap = "5.5.3"
+async-graphql-value = "7.0.5"
+serde_json = "1.0.117"
+url = "2.5.0"
+
+[dev-dependencies]
+wasm-bindgen-test = "0.3.42"