mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-22 03:18:05 +00:00
pezkuwichain
b8ee6a084f
- Renamed all crate names from subxt-* to pezkuwi-subxt-* - Updated codegen to use pezsp_runtime, pezsp_core, pezframe_support instead of sp_runtime, sp_core, frame_support - Replaced all internal references from subxt_* to pezkuwi_subxt_* - Added local path dependencies to Pezkuwi SDK crates - Updated workspace configuration for edition 2024
75 lines
2.3 KiB
Rust
75 lines
2.3 KiB
Rust
use hex::decode;
|
||
use std::{ffi::CStr, os::raw::c_char, sync::OnceLock};
|
||
use subxt::{OnlineClient, PolkadotConfig, dynamic::Value, ext::scale_value::Composite, tx};
|
||
use pezkuwi_subxt_signer::sr25519::dev;
|
||
use tokio::runtime::Runtime;
|
||
|
||
static TOKIO: OnceLock<Runtime> = OnceLock::new();
|
||
fn tokio_rt() -> &'static Runtime {
|
||
TOKIO.get_or_init(|| Runtime::new().expect("failed to start tokio"))
|
||
}
|
||
|
||
/// A simple C‐ABI function to transfer `amount` to a hex‐encoded `dest`.
|
||
/// Assumes a running node’s WS endpoint is at ws://127.0.0.1:8000
|
||
#[unsafe(no_mangle)]
|
||
pub extern "C" fn do_transfer(dest_hex: *const c_char, amount: u64) -> i32 {
|
||
let amount = amount as u128;
|
||
// We need to convert C string to Rust str
|
||
let raw_s = unsafe { CStr::from_ptr(dest_hex).to_str().unwrap_or_default() };
|
||
|
||
// Strip optional 0x prefix
|
||
let s = raw_s.strip_prefix("0x").unwrap_or(raw_s);
|
||
|
||
// Decode hex, force a 32‐byte AccountId
|
||
let raw = decode(s).expect("hex decode");
|
||
let arr: [u8; 32] = raw.as_slice().try_into().expect("must be 32 bytes");
|
||
|
||
// Wrap into a MultiAddress::Id variant for dynamic calls:
|
||
let dst = Value::variant(
|
||
"Id",
|
||
Composite::unnamed(vec![
|
||
// scale encode
|
||
Value::from_bytes(arr.to_vec()),
|
||
]),
|
||
);
|
||
|
||
// Spin up (or reuse) our Tokio runtime and connect:
|
||
let client = tokio_rt().block_on(async {
|
||
OnlineClient::<PolkadotConfig>::from_url("ws://127.0.0.1:8000")
|
||
.await
|
||
.unwrap()
|
||
});
|
||
let signer = dev::alice();
|
||
|
||
// Build the dynamic metadata extrinsic:
|
||
let tx = tx::dynamic(
|
||
"Balances",
|
||
"transfer_keep_alive",
|
||
vec![
|
||
dst.clone(),
|
||
// primitive numeric value
|
||
Value::u128(amount),
|
||
],
|
||
);
|
||
|
||
// Submit and wait for finalize
|
||
let res: Result<(), subxt::Error> = tokio_rt().block_on(async {
|
||
let progress = client
|
||
.tx()
|
||
.sign_and_submit_then_watch_default(&tx, &signer)
|
||
.await?;
|
||
progress.wait_for_finalized_success().await?;
|
||
Ok(())
|
||
});
|
||
|
||
// Return code
|
||
match res {
|
||
Ok(_) => 0,
|
||
Err(e) => {
|
||
// print the Subxt error
|
||
eprintln!("do_transfer failed: {:#?}", e);
|
||
-1
|
||
}
|
||
}
|
||
}
|