add yellowstone grpc

src/main.rs

@@ -0,0 +1,49 @@
+use mai3_pumpfun_sdk::instruction::{
+    logs_events::DexEvent,
+    logs_subscribe::{tokens_subscription, stop_subscription}
+};
+use solana_sdk::commitment_config::CommitmentConfig;
+
+#[tokio::main]
+async fn main() -> Result<(), Box<dyn std::error::Error>> {
+    println!("Starting token subscription\n");
+
+    let ws_url = "wss://api.mainnet-beta.solana.com";
+            
+    // Set commitment
+    let commitment = CommitmentConfig::confirmed();
+    
+    // Define callback function
+    let callback = |event: DexEvent| {
+        match event {
+            DexEvent::NewToken(token_info) => {
+                println!("Received new token event: {:?}", token_info);
+            },
+            DexEvent::NewUserTrade(trade_info) => {
+                println!("Received new trade event: {:?}", trade_info);
+            },
+            DexEvent::NewBotTrade(trade_info) => {
+                println!("Received new bot trade event: {:?}", trade_info);
+            },
+            DexEvent::Error(err) => {
+                println!("Received error: {}", err);
+            }
+        }
+    };
+
+    // Start subscription
+    let subscription = tokens_subscription(
+        ws_url,
+        commitment,
+        callback,
+        None
+    ).await.unwrap();
+
+    // Wait for a while to receive events
+    tokio::time::sleep(tokio::time::Duration::from_secs(60)).await;
+
+    // Stop subscription
+    stop_subscription(subscription).await;
+
+    Ok(())  
+}