mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-22 07:58:02 +00:00
James Wilson
cf7e2db1b7
* add follow_stream impl * follow_stream_unpin first draft * add tests for follow_stream_unpin * more tests and fixes for follow_stream_unpin * first pass follow_stream_driver * follow_stream_driver: add tests, fix things, buffer events from last finalized * First pass finishing Backend impl * Fix test compile issues * clippy fixes * clippy fix and consistify light_client * revert lightclient tweak * revert other lightclient thing * cargo fmt * start testing unstable backend behind feature flag * more test fixes and move test-runtime metadata path just incase * fix compile error * ensure transaction progress stream actually used and fix another test * cargo fmt * CI tweak * improve some comments and address some feedback bits * update CI to use our own nightly binary * wait for finalized block perhaps
35 lines
1.2 KiB
Rust
35 lines
1.2 KiB
Rust
use subxt::{OnlineClient, PolkadotConfig};
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use subxt_signer::sr25519::dev;
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// Generate an interface that we can use from the node's metadata.
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#[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata_small.scale")]
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pub mod polkadot {}
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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 new API client, configured to talk to Polkadot nodes.
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let api = OnlineClient::<PolkadotConfig>::new().await?;
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// Build a balance transfer extrinsic.
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let dest = dev::bob().public_key().into();
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let balance_transfer_tx = polkadot::tx().balances().transfer_allow_death(dest, 10_000);
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// Submit the balance transfer extrinsic from Alice, and wait for it to be successful
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// and in a finalized block. We get back the extrinsic events if all is well.
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let from = dev::alice();
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let events = api
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.tx()
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.sign_and_submit_then_watch_default(&balance_transfer_tx, &from)
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.await?
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.wait_for_finalized_success()
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.await?;
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// Find a Transfer event and print it.
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let transfer_event = events.find_first::<polkadot::balances::events::Transfer>()?;
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if let Some(event) = transfer_event {
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println!("Balance transfer success: {event:?}");
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}
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Ok(())
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}
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