mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-25 19:57:56 +00:00
James Wilson
71fbfebf5a
* Clone + Debug on Payloads/Addresses, and compare child storage results * , to . * clippy and fixes * fix * use derivative instead to remove boilerplate impls * add missing import * tidy up and extend wasm test timeout * try 5 mins instead of 2
58 lines
1.9 KiB
Rust
58 lines
1.9 KiB
Rust
#![cfg(target_arch = "wasm32")]
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use subxt::{
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config::PolkadotConfig,
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client::{LightClient, LightClientBuilder},
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};
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use futures_util::StreamExt;
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use wasm_bindgen_test::*;
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wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser);
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// Run the tests by calling:
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//
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// ```text
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// wasm-pack test --firefox --headless`
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// ```
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//
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// You'll need to have a substrate/polkadot node running:
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//
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// ```bash
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// # Polkadot does not accept by default WebSocket connections to the P2P network.
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// # Ensure `--listen-addr` is provided with valid ws adddress endpoint.
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// # The `--node-key` provides a deterministic p2p address for the node.
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// ./polkadot --dev --node-key 0000000000000000000000000000000000000000000000000000000000000001 --listen-addr /ip4/0.0.0.0/tcp/30333/ws
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// ```
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//
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// Use the following to enable logs:
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// ```
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// console_error_panic_hook::set_once();
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// tracing_wasm::set_as_global_default();
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// ```
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#[wasm_bindgen_test]
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async fn light_client_works() {
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// Use a polkadot trusted DNS.
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let api: LightClient<PolkadotConfig> = LightClientBuilder::new()
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.bootnodes(
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["/dns/polkadot-connect-0.parity.io/tcp/443/wss/p2p/12D3KooWEPmjoRpDSUuiTjvyNDd8fejZ9eNWH5bE965nyBMDrB4o"]
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)
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.build_from_url("wss://rpc.polkadot.io:443")
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.await
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.expect("Cannot construct light client");
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tracing::info!("Subscribe to latest finalized blocks: ");
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let mut blocks_sub = api.blocks().subscribe_finalized().await.expect("Cannot subscribe to finalized hashes").take(3);
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// For each block, print a bunch of information about it:
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while let Some(block) = blocks_sub.next().await {
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let block = block.expect("Block not valid");
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let block_number = block.header().number;
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let block_hash = block.hash();
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tracing::info!("Block #{block_number}:");
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tracing::info!(" Hash: {block_hash}");
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}
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}
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