mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-01 03:07:56 +00:00
James Wilson
562f12cd9b
* WIP Starting to write book; extrinsics first pass done * cargo fmt * Ongoing work; events, constants, wip blocks * at_latest() and wip blocks * remove need to import parity-scale-codec crate with Subxt for macro to work * More docs; expanding on setup guide and finish pass of main sections * Tidy and remove example section for now * format book lines to 100chars * Fix example code * cargo fmt * cargo fmt * fix example * Fix typos * fix broken doc links, pub mods * Update Subxt macro docs * can't link to Subxt here * move macro docs to Subxt to make linking better and fix example code * note on macro about docs * cargo fmt * document the no_default_derives macro feature * Address feedback and remove redundant text * address review comments; minor tweaks * WIP add Runtime calls to book * Improve Runtime API docs * expose thing we forgot to expose and doc link fixes
35 lines
1.3 KiB
Rust
35 lines
1.3 KiB
Rust
use sp_keyring::AccountKeyring;
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use subxt::{tx::PairSigner, OnlineClient, PolkadotConfig};
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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.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 = AccountKeyring::Bob.to_account_id().into();
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let balance_transfer_tx = polkadot::tx().balances().transfer(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 = PairSigner::new(AccountKeyring::Alice.pair());
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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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