mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-24 14:47:59 +00:00
Andrew Jones
de859e7396
* Global registration of type segmenters for event decoding * Perform type sizes check when building client * Introduce EventTypeRegistry for global runtime type sizes * Fmt * Register runtime type sizes on creation of EventTypeRegistry * Register more default dispatch types * Add missing type sizes * fmt * Fix up register_type_size builder method * Update doc comments * Make register_default_type_sizes public * Don't allow duplicate registered types * Remove call to supertraits type registration, done manually in Runtime * Fix tests and warnings * Fix duplicate type registration * Fmt * review: use is_empty() Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com> * Add panic docs Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>
52 lines
1.8 KiB
Rust
52 lines
1.8 KiB
Rust
// Copyright 2019-2021 Parity Technologies (UK) Ltd.
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// This file is part of substrate-subxt.
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//
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// subxt is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// subxt is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with substrate-subxt. If not, see <http://www.gnu.org/licenses/>.
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use sp_keyring::AccountKeyring;
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use substrate_subxt::{
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balances::{
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TransferCallExt,
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TransferEvent,
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},
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sp_core::Decode,
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ClientBuilder,
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DefaultNodeRuntime,
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EventSubscription,
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PairSigner,
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};
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#[async_std::main]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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env_logger::init();
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let signer = PairSigner::new(AccountKeyring::Alice.pair());
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let dest = AccountKeyring::Bob.to_account_id().into();
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let client = ClientBuilder::<DefaultNodeRuntime>::new().build().await?;
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let sub = client.subscribe_events().await?;
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let decoder = client.events_decoder();
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let mut sub = EventSubscription::<DefaultNodeRuntime>::new(sub, decoder);
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sub.filter_event::<TransferEvent<_>>();
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client.transfer(&signer, &dest, 10_000).await?;
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let raw = sub.next().await.unwrap().unwrap();
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let event = TransferEvent::<DefaultNodeRuntime>::decode(&mut &raw.data[..]);
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if let Ok(e) = event {
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println!("Balance transfer success: value: {:?}", e.amount);
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} else {
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println!("Failed to subscribe to Balances::Transfer Event");
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}
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Ok(())
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}
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