Companion PR to Substrate#5089 (Use libp2p's implementation of a wasm websocket transport)

cli/browser-demo/index.html

@@ -6,7 +6,6 @@
 	<link rel="shortcut icon" href="/favicon.png" />
 	<script type="module">
 import { start_client, default as init } from './pkg/polkadot_cli.js';
-import ws from './ws.js';
 
 function log(msg) {
 	document.getElementsByTagName('body')[0].innerHTML += msg + '\n';
@@ -19,7 +18,7 @@
 
 	// Build our client.
 	log('Starting client');
-	let client = await start_client('westend', ws());
+	let client = await start_client('westend');
 	log('Client started');
 
 	client.rpcSubscribe('{"method":"chain_subscribeNewHead","params":[],"id":1,"jsonrpc":"2.0"}',

cli/src/browser.rs

@@ -23,21 +23,21 @@ use service::IsKusama;
 ///
 /// You must pass a libp2p transport that supports .
 #[wasm_bindgen]
-pub async fn start_client(chain_spec: String, wasm_ext: browser_utils::Transport) -> Result<browser_utils::Client, JsValue> {
-	start_inner(chain_spec, wasm_ext)
+pub async fn start_client(chain_spec: String) -> Result<browser_utils::Client, JsValue> {
+	start_inner(chain_spec)
 		.await
 		.map_err(|err| JsValue::from_str(&err.to_string()))
 }
 
-async fn start_inner(chain_spec: String, wasm_ext: browser_utils::Transport) -> Result<browser_utils::Client, Box<dyn std::error::Error>> {
+async fn start_inner(chain_spec: String) -> Result<browser_utils::Client, Box<dyn std::error::Error>> {
 	browser_utils::set_console_error_panic_hook();
 	browser_utils::init_console_log(log::Level::Info)?;
 
 	let chain_spec = ChainSpec::from(&chain_spec)
 		.ok_or_else(|| format!("Chain spec: {:?} doesn't exist.", chain_spec))?
 		.load()
 		.map_err(|e| format!("{:?}", e))?;
-	let config = browser_utils::browser_configuration(wasm_ext, chain_spec)
+	let config = browser_utils::browser_configuration(chain_spec)
 		.await?;
 
 	info!("Polkadot browser node");