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Subxt Guide (#890)

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* 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
This commit is contained in:
James Wilson
2023-05-04 15:03:42 +01:00
committed by GitHub
parent 53544a54b6
commit 562f12cd9b
58 changed files with 1472 additions and 1506 deletions
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examples/examples/balance_transfer_with_params.rs
+11 -35
View File
@@ -1,52 +1,28 @@
// Copyright 2019-2023 Parity Technologies (UK) Ltd.
// This file is dual-licensed as Apache-2.0 or GPL-3.0.
// see LICENSE for license details.
//! To run this example, a local polkadot node should be running. Example verified against polkadot v0.9.28-9ffe6e9e3da.
//!
//! E.g.
//! ```bash
//! curl "https://github.com/paritytech/polkadot/releases/download/v0.9.28/polkadot" --output /usr/local/bin/polkadot --location
//! polkadot --dev --tmp
//! ```
use sp_keyring::AccountKeyring;
use subxt::{
config::{
polkadot::{Era, PlainTip, PolkadotExtrinsicParamsBuilder as Params},
PolkadotConfig,
},
tx::PairSigner,
OnlineClient,
};
use subxt::config::polkadot::{Era, PlainTip, PolkadotExtrinsicParamsBuilder as Params};
use subxt::{tx::PairSigner, OnlineClient, PolkadotConfig};
#[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata.scale")]
pub mod polkadot {}
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
tracing_subscriber::fmt::init();
let signer = PairSigner::new(AccountKeyring::Alice.pair());
let dest = AccountKeyring::Bob.to_account_id().into();
// Create a client to use:
// Create a new API client, configured to talk to Polkadot nodes.
let api = OnlineClient::<PolkadotConfig>::new().await?;
// Create a transaction to submit:
let tx = polkadot::tx()
.balances()
.transfer(dest, 123_456_789_012_345);
// Build a balance transfer extrinsic.
let dest = AccountKeyring::Bob.to_account_id().into();
let tx = polkadot::tx().balances().transfer(dest, 10_000);
// Configure the transaction tip and era:
// Configure the transaction parameters; for Polkadot the tip and era:
let tx_params = Params::new()
.tip(PlainTip::new(20_000_000_000))
.tip(PlainTip::new(1_000))
.era(Era::Immortal, api.genesis_hash());
// submit the transaction:
let hash = api.tx().sign_and_submit(&tx, &signer, tx_params).await?;
println!("Balance transfer extrinsic submitted: {hash}");
let from = PairSigner::new(AccountKeyring::Alice.pair());
let hash = api.tx().sign_and_submit(&tx, &from, tx_params).await?;
println!("Balance transfer extrinsic submitted with hash : {hash}");
Ok(())
}