add tokens_subscription

This commit is contained in:
William
2025-01-03 00:38:45 +08:00
parent c68f360944
commit 0439a40ca7
8 changed files with 121 additions and 150 deletions
@@ -8,9 +8,14 @@ use anchor_client::solana_sdk::commitment_config::CommitmentConfig;
use std::sync::Arc;
use tokio::sync::mpsc;
use tokio::task::JoinHandle;
use futures::{future::BoxFuture, Future, StreamExt};
use futures::StreamExt;
use crate::instruction::{
logs_events::DexEvent,
logs_data::DexInstruction,
logs_filters::LogFilter
};
/// 订阅结果,包含订阅任务和取消订阅逻辑
/// Subscription handle containing task and unsubscribe logic
pub struct SubscriptionHandle {
pub task: JoinHandle<()>,
pub unsub_fn: Box<dyn Fn() + Send>,
@@ -28,14 +33,14 @@ pub async fn create_pubsub_client(ws_url: &str) -> PubsubClient {
}
/// 启动订阅
pub async fn start_subscription<F>(
pub async fn tokens_subscription<F>(
ws_url: &str,
program_address: &str,
commitment: CommitmentConfig,
subscription_callback: F,
callback: F,
) -> Result<SubscriptionHandle, Box<dyn std::error::Error>>
where
F: Fn(&str, Vec<String>) + Send + Sync + 'static,
F: Fn(DexEvent) + Send + Sync + 'static,
{
let logs_filter = RpcTransactionLogsFilter::Mentions(vec![program_address.to_string()]);
@@ -43,17 +48,17 @@ where
commitment: Some(commitment),
};
// 创建 PubsubClient
// Create PubsubClient
let sub_client = Arc::new(PubsubClient::new(ws_url).await.unwrap());
let sub_client_clone = Arc::clone(&sub_client);
// 创建一个通道用于取消订阅
let (unsub_tx, mut unsub_rx) = mpsc::channel(1);
// Create channel for unsubscribe
let (unsub_tx, _) = mpsc::channel(1);
// 启动订阅任务
// Start subscription task
let task = tokio::spawn(async move {
let (mut stream, unsub) = sub_client_clone.logs_subscribe(logs_filter, logs_config).await.unwrap();
let (mut stream, _) = sub_client_clone.logs_subscribe(logs_filter, logs_config).await.unwrap();
loop {
let msg = stream.next().await;
@@ -62,22 +67,32 @@ where
if let Some(_err) = msg.value.err {
continue;
}
subscription_callback(&msg.value.signature.as_str(), msg.value.logs);
let instructions = LogFilter::parse_instruction(&msg.value.logs).unwrap();
for instruction in instructions {
match instruction {
DexInstruction::CreateToken(token_info) => {
callback(DexEvent::NewToken(token_info));
}
DexInstruction::Trade(trade_info) => {
callback(DexEvent::NewTrade(trade_info));
}
_ => {}
}
}
}
None => {
println!("Token subscription stream ended");
// break;
}
}
}
});
// 返回订阅句柄和取消逻辑
// Return subscription handle and unsubscribe logic
Ok(SubscriptionHandle {
task,
unsub_fn: Box::new(move || {
let _ = unsub_tx.try_send(()); // 发送取消信号
let _ = unsub_tx.try_send(());
}),
})
}