feat: wasm (#38)

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
         run: git submodule update --init --recursive
       - name: cargo test
         run: |
-            cargo test
+            cargo test --release --workspace --exclude rln-wasm
   lint:
     runs-on: ubuntu-latest
     steps:
@@ -40,6 +40,9 @@ jobs:
       - name: cargo fmt
         run: cargo fmt --all -- --check
       - name: cargo clippy
-        run: cargo clippy
+        run: |
+          (cd multiplier && cargo clippy)
+          (cd rln && cargo clippy)
+          (cd semaphore && cargo clippy)
         # Currently not treating warnings as error, too noisy
         # -- -D warnings

Cargo.toml

@@ -3,4 +3,5 @@ members = [
   "multiplier",
   "semaphore",
   "rln",
+  "rln-wasm",
 ]

rln-wasm/Cargo.toml

@@ -0,0 +1,27 @@
+[package]
+name = "rln-wasm"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[dependencies]
+rln = { path = "../rln", default-features = false, features = ["wasm"] }
+num-bigint = { version = "0.4", default-features = false, features = ["rand", "serde"] }
+wasmer = { version = "2.3", default-features = false, features = ["js", "std"] }
+web-sys = {version = "0.3", features=["console"]}
+getrandom = { version = "0.2.7", default-features = false, features = ["js"] }
+wasm-bindgen = "0.2.63"
+serde-wasm-bindgen = "0.4"
+js-sys = "0.3.59"
+console_error_panic_hook = "0.1.7"
+serde_json = "1.0.85"
+
+[dev-dependencies]
+wasm-bindgen-test = "0.3.0"
+wasm-bindgen-futures = "0.4.33"
+
+[profile.release]
+debug = true
+

rln-wasm/README.md

@@ -0,0 +1,20 @@
+# RLN for WASM
+This library is used in [waku-org/js-rln](https://github.com/waku-org/js-rln/)
+
+## Building the library
+1. Make sure you have nodejs installed and the `build-essential` package if using ubuntu.
+2. Install wasm-pack
+```
+curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+```
+3. Compile zerokit for `wasm32-unknown-unknown`:
+```
+cd rln-wasm
+wasm-pack build --release
+```
+
+## Running tests
+```
+cd rln-wasm
+wasm-pack test --node --release
+```