update readme

README.md

@@ -21,3 +21,113 @@ Add the following to your `Cargo.toml`:
 [dependencies]
 mai3-pumpfun-sdk = "2.3.0"
 ```
+
+## Usage
+
+### logs subscription for token create and trade  transaction
+```rust
+use mai3_pumpfun_sdk::instruction::{
+    logs_events::DexEvent,
+    logs_subscribe::{tokens_subscription, stop_subscription}
+};
+use anchor_client::solana_sdk::commitment_config::CommitmentConfig;
+
+use std::str::FromStr;
+use tokio::signal;
+
+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::NewTrade(trade_info) => {
+            println!("Received new trade event: {:?}", trade_info);
+        },
+        DexEvent::Error(err) => {
+            println!("Received error: {}", err);
+        }
+    }
+};
+
+// Start subscription
+let subscription = tokens_subscription(
+    ws_url,
+    commitment,
+    callback
+).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;
+```
+
+### pumpfun Create, Buy, Sell
+```rust
+use anchor_client::{
+    solana_sdk::{
+        native_token::LAMPORTS_PER_SOL,
+        signature::{Keypair, Signature},
+        signer::Signer,
+    },
+    Cluster,
+};
+use mai3_pumpfun_sdk::{accounts::BondingCurveAccount, utils::CreateTokenMetadata, PriorityFee, PumpFun};
+
+// Create a new PumpFun client
+let payer: Keypair = Keypair::new();
+let client: PumpFun = PumpFun::new(Cluster::Mainnet, &payer, None, None);
+
+// Mint keypair
+let mint: Keypair = Keypair::new();
+
+// Token metadata
+let metadata: CreateTokenMetadata = CreateTokenMetadata {
+    name: "Lorem ipsum".to_string(),
+    symbol: "LIP".to_string(),
+    description: "Lorem ipsum dolor, sit amet consectetur adipisicing elit. Quam, nisi.".to_string(),
+    file: "/path/to/image.png".to_string(),
+    twitter: None,
+    telegram: None,
+    website: Some("https://example.com".to_string()),
+};
+
+// Optional priority fee to expedite transaction processing (e.g., 100 LAMPORTS per compute unit, equivalent to a 0.01 SOL priority fee)
+let fee: Option<PriorityFee> = Some(PriorityFee {
+    limit: Some(100_000),
+    price: Some(100_000_000),
+});
+
+// Create token with metadata
+let signature: Signature = client.create(&mint, metadata.clone(), fee).await?;
+println!("Created token: {}", signature);
+
+// Print amount of SOL and LAMPORTS
+let amount_sol: u64 = 1;
+let amount_lamports: u64 = LAMPORTS_PER_SOL * amount_sol;
+println!("Amount in SOL: {}", amount_sol);
+println!("Amount in LAMPORTS: {}", amount_lamports);
+
+// Create and buy tokens with metadata
+let signature: Signature = client.create_and_buy(&mint, metadata.clone(), amount_lamports, None, fee).await?;
+println!("Created and bought tokens: {}", signature);
+
+// Print the curve
+let curve: BondingCurveAccount = client.get_bonding_curve_account(&mint.pubkey())?;
+println!("{:?}", curve);
+
+// Buy tokens (ATA will be created automatically if needed)
+let signature: Signature = client.buy(&mint.pubkey(), amount_lamports, None, fee).await?;
+println!("Bought tokens: {}", signature);
+
+// Sell tokens (sell all tokens)
+let signature: Signature = client.sell(&mint.pubkey(), None, None, fee).await?;
+println!("Sold tokens: {}", signature);
+```

crates/pumpfun/src/instruction/logs_subscribe.rs

@@ -9,11 +9,9 @@ use std::sync::Arc;
 use tokio::sync::mpsc;
 use tokio::task::JoinHandle;
 use futures::StreamExt;
-use crate::instruction::{
-    logs_events::DexEvent,
-    logs_data::DexInstruction,
-    logs_filters::LogFilter
-};
+use crate::{constants, instruction::{
+    logs_data::DexInstruction, logs_events::DexEvent, logs_filters::LogFilter
+}};
 
 /// Subscription handle containing task and unsubscribe logic
 pub struct SubscriptionHandle {
@@ -35,14 +33,14 @@ pub async fn create_pubsub_client(ws_url: &str) -> PubsubClient {
 /// 启动订阅
 pub async fn tokens_subscription<F>(
     ws_url: &str,
-    program_address: &str,
     commitment: CommitmentConfig,
     callback: F,
 ) -> Result<SubscriptionHandle, Box<dyn std::error::Error>>
 where
     F: Fn(DexEvent) + Send + Sync + 'static,
 {
-    let logs_filter = RpcTransactionLogsFilter::Mentions(vec![program_address.to_string()]);
+    let program_address = constants::accounts::PUMPFUN.to_string();
+    let logs_filter = RpcTransactionLogsFilter::Mentions(vec![program_address]);
 
     let logs_config = RpcTransactionLogsConfig {
         commitment: Some(commitment),

crates/pumpfun/src/main.rs

@@ -1,6 +1,7 @@
-use mai3_pumpfun_sdk::instruction::logs_subscribe::tokens_subscription;
-use mai3_pumpfun_sdk::instruction::logs_events::DexEvent;
-use mai3_pumpfun_sdk::instruction::logs_subscribe::stop_subscription;
+use mai3_pumpfun_sdk::instruction::{
+    logs_events::DexEvent,
+    logs_subscribe::{tokens_subscription, stop_subscription}
+};
 use anchor_client::solana_sdk::commitment_config::CommitmentConfig;
 
 use std::str::FromStr;
@@ -8,19 +9,10 @@ use tokio::signal;
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    start_token_subscription().await?;
-
-    Ok(())
-}
-
-pub async fn start_token_subscription() -> Result<(), Box<dyn std::error::Error>> {
     println!("Starting token subscription\n");
 
     let ws_url = "wss://api.mainnet-beta.solana.com";
-        
-    // Program address
-    let program_address = "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P";
-    
+            
     // Set commitment
     let commitment = CommitmentConfig::confirmed();
     
@@ -42,7 +34,6 @@ pub async fn start_token_subscription() -> Result<(), Box<dyn std::error::Error>
     // Start subscription
     let subscription = tokens_subscription(
         ws_url,
-        program_address,
         commitment,
         callback
     ).await.unwrap();