75 lines
2.4 KiB
Rust
75 lines
2.4 KiB
Rust
#![allow(missing_docs)]
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use pezkuwi_subxt::{
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utils::{AccountId32 as UtilAccountId32, MultiAddress as UtilMultiAddress},
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OnlineClient, PezkuwiConfig,
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};
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use codec::Decode;
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#[pezkuwi_subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata_small.scale")]
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pub mod pezkuwi {}
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use pezkuwi::balances::calls::types::TransferKeepAlive;
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use pezkuwi::runtime_types::sp_core::crypto::AccountId32;
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use pezkuwi::runtime_types::sp_runtime::multiaddress::MultiAddress;
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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// Create a client that subscribes to blocks of the Pezkuwi network.
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let api = OnlineClient::<PezkuwiConfig>::from_url("wss://rpc.pezkuwi.io:443").await?;
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// Subscribe to all finalized blocks:
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let mut blocks_sub = api.blocks().subscribe_finalized().await?;
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// For each block, print details about the `TransferKeepAlive` transactions we are interested
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// in.
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while let Some(block) = blocks_sub.next().await {
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let block = block?;
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let block_number = block.header().number;
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let block_hash = block.hash();
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println!("Block #{block_number} ({block_hash}):");
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let extrinsics = block.extrinsics().await?;
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for transfer in extrinsics.find::<TransferKeepAlive>() {
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let transfer = transfer?;
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let Some(extensions) = transfer.details.transaction_extensions() else {
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panic!("TransferKeepAlive should be signed")
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};
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let addr_bytes =
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transfer.details.address_bytes().expect("TransferKeepAlive should be signed");
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// Use utility types for decoding as they implement the Decode trait
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let sender = UtilMultiAddress::<UtilAccountId32, ()>::decode(&mut &addr_bytes[..])
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.expect("Decoding should work");
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let sender = display_util_address(&sender);
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let receiver = display_address(&transfer.value.dest);
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let value = transfer.value.value;
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let tip = extensions.tip().expect("Should have tip");
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let nonce = extensions.nonce().expect("Should have nonce");
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println!(
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" Transfer of {value} DOT:\n {sender} (Tip: {tip}, Nonce: {nonce}) ---> {receiver}",
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);
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}
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}
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Ok(())
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}
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fn display_address(addr: &MultiAddress<AccountId32, ()>) -> String {
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if let MultiAddress::Id(id32) = addr {
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format!("{id32:?}")
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} else {
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"MultiAddress::...".into()
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}
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}
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fn display_util_address(addr: &UtilMultiAddress<UtilAccountId32, ()>) -> String {
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if let UtilMultiAddress::Id(id32) = addr {
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format!("{id32}")
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} else {
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"MultiAddress::...".into()
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}
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}
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