mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-29 05:37:58 +00:00
James Wilson
3d669f97c6
* WIP extrinsic api updates * First pass done; now to get things compiling again * document and tweak new structs/traits * cargo check --all-targets now compiles without issue * Polkadot and Substrate take different extra params; support both * Fix transaction format (missing byte from AccountId -> Address) and fmt * Tweak Signer trait * Tweak comments and such in extrinsic params * check all examples against newer polkadot, add new one with params, import path tweaks * clippy fix, and save an allocation when signing * Remove unnecessary Default clauses * Tidy up and fix comments. Panic if payload size >4GB * fix typo
79 lines
2.8 KiB
Rust
79 lines
2.8 KiB
Rust
// Copyright 2019-2022 Parity Technologies (UK) Ltd.
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// This file is part of 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 subxt. If not, see <http://www.gnu.org/licenses/>.
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//! To run this example, a local polkadot node should be running. Example verified against polkadot 0.9.18-f6d6ab005d-aarch64-macos.
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//!
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//! E.g.
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//! ```bash
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//! curl "https://github.com/paritytech/polkadot/releases/download/v0.9.13/polkadot" --output /usr/local/bin/polkadot --location
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//! polkadot --dev --tmp
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//! ```
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use sp_keyring::AccountKeyring;
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use subxt::{
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ClientBuilder,
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Config,
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DefaultConfig,
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PairSigner,
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PolkadotExtrinsicParams,
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};
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#[subxt::subxt(runtime_metadata_path = "examples/polkadot_metadata.scale")]
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pub mod polkadot {}
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/// Custom [`Config`] impl where the default types for the target chain differ from the
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/// [`DefaultConfig`]
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#[derive(Clone, Debug, Default, Eq, PartialEq)]
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pub struct MyConfig;
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impl Config for MyConfig {
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// This is different from the default `u32`.
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//
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// *Note* that in this example it does differ from the actual `Index` type in the
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// polkadot runtime used, so some operations will fail. Normally when using a custom `Config`
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// impl types MUST match exactly those used in the actual runtime.
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type Index = u64;
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type BlockNumber = <DefaultConfig as Config>::BlockNumber;
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type Hash = <DefaultConfig as Config>::Hash;
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type Hashing = <DefaultConfig as Config>::Hashing;
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type AccountId = <DefaultConfig as Config>::AccountId;
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type Address = <DefaultConfig as Config>::Address;
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type Header = <DefaultConfig as Config>::Header;
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type Signature = <DefaultConfig as Config>::Signature;
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type Extrinsic = <DefaultConfig as Config>::Extrinsic;
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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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let api = ClientBuilder::new()
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.build()
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.await?
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.to_runtime_api::<polkadot::RuntimeApi<MyConfig, PolkadotExtrinsicParams<MyConfig>>>();
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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 hash = api
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.tx()
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.balances()
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.transfer(dest, 10_000)
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.sign_and_submit_default(&signer)
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.await?;
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println!("Balance transfer extrinsic submitted: {}", hash);
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Ok(())
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}
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