Add light client platform WASM compatible (#1026)

* Cargo update in prep for wasm build Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Add light client test Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Implement low level socket Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Add native platform primitives Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Add wasm platform primitives Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Implement smoldot platform Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Adjust code to use custom platform Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Adjust feature flags Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * tests: Adjust wasm endpoint to accept ws for p2p Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Adjust wasm socket Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Book mention of wasm Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * ci: Propagate env variable properly Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * subxt: Revert to native feature flags Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * cli: Use tokio rt-multi-thread feature Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * subxt: Add tokio feature flags for native platform Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm: Use polkadot live for wasm testing Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm: Add support for DNS p2p addresses Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm: Disable logs Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm: Run wasm test for firefox driver Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm: Reenable chrome driver Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Move lightclient RPC to dedicated crate for better feature flags and modularity Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Use subxt-lightclient low level RPC crate Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Apply cargo fmt Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Enable default:native feature for cargo check Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * ci: Extra step for subxt-lightclient similar to signer crate Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Remove native platform code and use smoldot instead Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * codegen: Enable tokio/multi-threads Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * lightclient: Refactor modules Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Adjust testing crates Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * ci: Run light-client WASM tests Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm-rpc: Remove light-client imports Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * testing: Update wasm cargo.lock files Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * ci: Spawn substrate node with deterministic p2p address for WASM tests Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm_socket: Use rc and refcell Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * wasm_socket: Switch back to Arc<Mutex<>> Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> * Add comments Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io> --------- Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
2026-04-22 18:28:01 +00:00 · 2023-07-18 14:27:16 +03:00
parent ab2f2a8cdf
commit 4bda673847
28 changed files with 5280 additions and 305 deletions
@@ -0,0 +1,56 @@
+#![cfg(target_arch = "wasm32")]
+
+use subxt::{config::PolkadotConfig,
+    client::{LightClient, OfflineClientT, LightClientBuilder},
+};
+use futures_util::StreamExt;
+use wasm_bindgen_test::*;
+
+wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser);
+
+// Run the tests by calling:
+//
+// ```text
+// wasm-pack test --firefox --headless`
+// ```
+//
+// You'll need to have a substrate/polkadot node running:
+//
+// ```bash
+// # Polkadot does not accept by default WebSocket connections to the P2P network.
+// # Ensure `--listen-addr` is provided with valid ws adddress endpoint.
+// # The `--node-key` provides a deterministic p2p address for the node.
+// ./polkadot --dev --node-key 0000000000000000000000000000000000000000000000000000000000000001 --listen-addr /ip4/0.0.0.0/tcp/30333/ws
+// ```
+//
+// Use the following to enable logs:
+// ```
+//  console_error_panic_hook::set_once();
+//  tracing_wasm::set_as_global_default();
+// ```
+
+#[wasm_bindgen_test]
+async fn light_client_works() {
+    // Use a polkadot trusted DNS.
+    let api: LightClient<PolkadotConfig> = LightClientBuilder::new()
+        .bootnodes(
+            ["/dns/polkadot-connect-0.parity.io/tcp/443/wss/p2p/12D3KooWEPmjoRpDSUuiTjvyNDd8fejZ9eNWH5bE965nyBMDrB4o"]
+        )
+        .build_from_url("wss://rpc.polkadot.io:443")
+        .await
+        .expect("Cannot construct light client");
+
+    tracing::info!("Subscribe to latest finalized blocks: ");
+
+    let mut blocks_sub = api.blocks().subscribe_finalized().await.expect("Cannot subscribe to finalized hashes").take(3);
+    // For each block, print a bunch of information about it:
+    while let Some(block) = blocks_sub.next().await {
+        let block = block.expect("Block not valid");
+
+        let block_number = block.header().number;
+        let block_hash = block.hash();
+
+        tracing::info!("Block #{block_number}:");
+        tracing::info!("  Hash: {block_hash}");
+    }
+}