mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-23 00:18:00 +00:00
James Wilson
b4eb406ee5
* Add and use subxt-signer crate for WASM compatible signing * cargo fmt * dev keypairs already references * WIP fix various breakages * re-jig features to be simpler and various test fixes etc * doc and web fix * fix various bits and pieces * fix a test I broke * dev-deps can't be linked to in docs, hrmph * cargo fmt * another doc link * document the subxt_signer crate more thoroughly * move feature flag for consistency * more docs, no default subxt feature flag on signer, update release instrs * Add missing license header * unwrap_inner => into_inner * extend a test a little to better check derive junctions * note more clearly that the crypto bits come from sp_core::crypto
28 lines
1004 B
Rust
28 lines
1004 B
Rust
use subxt::dynamic::{At, Value};
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use subxt::{OnlineClient, PolkadotConfig};
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use subxt_signer::sr25519::dev;
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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 dynamic storage query to access account information.
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let account = dev::alice().public_key();
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let storage_query =
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subxt::dynamic::storage("System", "Account", vec![Value::from_bytes(account)]);
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// Use that query to `fetch` a result. Because the query is dynamic, we don't know what the result
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// type will be either, and so we get a type back that can be decoded into a dynamic Value type.
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let result = api
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.storage()
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.at_latest()
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.await?
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.fetch(&storage_query)
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.await?;
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let value = result.unwrap().to_value()?;
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println!("Alice has free balance: {:?}", value.at("data").at("free"));
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Ok(())
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}
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