feat: Upgrade SDK to version 0.1.4 and optimize event handling mechanism

1. Version upgrade: SDK version updated from 0.1.3 to 0.1.4
2. Remove BlockMetaEvent: Delete unnecessary block metadata event type and related code
3. Optimize event handling: Add block_time and block_time_ms fields to each event
4. Code optimization: Improve code formatting and structure
5. Example updates: Update example code and usage instructions in README

src/main.rs

@@ -2,7 +2,6 @@ use solana_streamer_sdk::{
     match_event,
     streaming::{
         event_parser::{
-            core::traits::BlockMetaEvent,
             protocols::{
                 bonk::{BonkPoolCreateEvent, BonkTradeEvent},
                 pumpfun::{PumpFunCreateTokenEvent, PumpFunTradeEvent},
@@ -22,7 +21,7 @@ use solana_streamer_sdk::{
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
     test_grpc().await?;
-    // test_shreds().await?;
+    test_shreds().await?;
     Ok(())
 }
 
@@ -36,11 +35,11 @@ async fn test_grpc() -> Result<(), Box<dyn std::error::Error>> {
 
     let callback = create_event_callback();
     let protocols = vec![
-        // Protocol::PumpFun,
-        // Protocol::PumpSwap,
+        Protocol::PumpFun,
+        Protocol::PumpSwap,
         Protocol::Bonk,
-        // Protocol::RaydiumCpmm,
-        // Protocol::RaydiumClmm,
+        Protocol::RaydiumCpmm,
+        Protocol::RaydiumClmm,
     ];
 
     println!("开始监听事件，按 Ctrl+C 停止...");
@@ -74,11 +73,10 @@ async fn test_shreds() -> Result<(), Box<dyn std::error::Error>> {
 fn create_event_callback() -> impl Fn(Box<dyn UnifiedEvent>) {
     |event: Box<dyn UnifiedEvent>| {
         match_event!(event, {
-            BlockMetaEvent => |e: BlockMetaEvent| {
-                // println!("BlockMetaEvent: {:?}", e.slot);
-            },
             BonkPoolCreateEvent => |e: BonkPoolCreateEvent| {
-                // println!("BonkPoolCreateEvent: {:?}", e.base_mint_param.symbol);
+                // 使用grpc的时候，可以从每个事件中获取到block_time
+                println!("block_time: {:?}, block_time_ms: {:?}", e.metadata.block_time, e.metadata.block_time_ms);
+                println!("BonkPoolCreateEvent: {:?}", e.base_mint_param.symbol);
             },
             BonkTradeEvent => |e: BonkTradeEvent| {
                 println!("BonkTradeEvent: {:?}", e);