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Backup platform impl

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Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>
This commit is contained in:
Alexandru Vasile
2023-06-02 19:16:52 +03:00
parent ede1094be3
commit b70beaf7a4
10 changed files with 636 additions and 60 deletions
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examples/examples/unstable_light_client_tx_basic.rs
+36 -19
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@@ -1,10 +1,11 @@
use futures::StreamExt;
use sp_keyring::AccountKeyring;
use std::sync::Arc;
use subxt::{rpc::LightClient, tx::PairSigner, OnlineClient, PolkadotConfig};
// Generate an interface that we can use from the node's metadata.
#[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata_small.scale")]
pub mod polkadot {}
// // Generate an interface that we can use from the node's metadata.
// #[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata_small.scale")]
// pub mod polkadot {}
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
@@ -48,25 +49,41 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
let light_client = LightClient::new(include_str!("../../artifacts/dev_spec.json"))?;
let api = OnlineClient::<PolkadotConfig>::from_rpc_client(Arc::new(light_client)).await?;
// Build a balance transfer extrinsic.
let dest = AccountKeyring::Bob.to_account_id().into();
let balance_transfer_tx = polkadot::tx().balances().transfer(dest, 10_000);
{
println!("Subscribe to latest finalized blocks: ");
// Submit the balance transfer extrinsic from Alice, and wait for it to be successful
// and in a finalized block. We get back the extrinsic events if all is well.
let from = PairSigner::new(AccountKeyring::Alice.pair());
let events = api
.tx()
.sign_and_submit_then_watch_default(&balance_transfer_tx, &from)
.await?
.wait_for_finalized_success()
.await?;
let mut blocks_sub = api.blocks().subscribe_finalized().await?.take(3);
// For each block, print a bunch of information about it:
while let Some(block) = blocks_sub.next().await {
let block = block?;
// Find a Transfer event and print it.
let transfer_event = events.find_first::<polkadot::balances::events::Transfer>()?;
if let Some(event) = transfer_event {
println!("Balance transfer success: {event:?}");
let block_number = block.header().number;
let block_hash = block.hash();
println!("Block #{block_number}:");
println!(" Hash: {block_hash}");
}
}
// Build a balance transfer extrinsic.
// let dest = AccountKeyring::Bob.to_account_id().into();
// let balance_transfer_tx = polkadot::tx().balances().transfer(dest, 10_000);
// // Submit the balance transfer extrinsic from Alice, and wait for it to be successful
// // and in a finalized block. We get back the extrinsic events if all is well.
// let from = PairSigner::new(AccountKeyring::Alice.pair());
// let events = api
// .tx()
// .sign_and_submit_then_watch_default(&balance_transfer_tx, &from)
// .await?
// .wait_for_finalized_success()
// .await?;
// // Find a Transfer event and print it.
// let transfer_event = events.find_first::<polkadot::balances::events::Transfer>()?;
// if let Some(event) = transfer_event {
// println!("Balance transfer success: {event:?}");
// }
Ok(())
}