build meteora swap and send it. It fails

.env

@@ -1,6 +1,11 @@
 YELLOWSTONE_ENDPOINT=https://solana-yellowstone-grpc.publicnode.com:443
 YELLOWSTONE_COMMITMENT=processed
 
+RPC_URL=https://solana-rpc.publicnode.com
+RPC_COMMITMENT=processed
+SIMULATE_FIRST=true
+
+
 BUNDLER=5jYaYv7HoiFVrY9bAcruj6dH8fCBseky4sBmnTFGSaeW
 
 RUST_LOG=info
@@ -8,3 +13,13 @@ RUST_LOG=info
 BIN_PATH=logs/frames/bin/1762440223791_slot378317940_4t6rKnrWTjmM_tx.bin
 # Wallet
 WALLET_PATH=keys/wallet_01.json
+
+# Compra
+BUY_MODE=amount               # amount | percent
+BUY_AMOUNT_LAMPORTS=20000000  # 0.02 SOL en lamports (si BUY_MODE=amount)
+BUY_WSOL=true                 # wrap SOL -> wSOL ATA (si hace falta)
+
+# Slippage y prioridad
+MAX_SLIPPAGE_BPS=150          # 1.50% (bps = basis points)
+PRIORITY_FEE_MICROLAMPORTS=0  # 0 = sin prioridad extra (ajústalo si hace falta)
+COMPUTE_UNIT_LIMIT=1200000    # si quieres imponer tu CU (o deja las del bundler)

Cargo.lock

@@ -2744,6 +2744,9 @@ name = "sniper-bot"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "async-trait",
+ "base64 0.22.1",
+ "bincode",
  "bs58",
  "dotenvy",
  "futures",

Cargo.toml

@@ -13,6 +13,9 @@ tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 
 # TLS / HTTP libs si las necesitas luego (reqwest usa rustls)
 reqwest = { version = "0.12", features = ["rustls-tls", "json"] }
+async-trait = "0.1"
+base64 = "0.22"
+bincode = "1"
 
 # openssl si lo necesitas para otras cosas (dejamos vendored)
 openssl = { version = "0.10", features = ["vendored"] }

src/engine.rs

@@ -0,0 +1,92 @@
+// src/engine.rs
+
+use anyhow::{anyhow, Result};
+use yellowstone_grpc_proto::geyser::SubscribeUpdateTransaction;
+use solana_sdk::{
+    instruction::CompiledInstruction,
+    message::{v0::LoadedAddresses, VersionedMessage},
+    pubkey::Pubkey,
+};
+
+
+#[derive(Clone, Debug)]
+pub struct TxuSnapshot {
+    pub slot: u64,
+    pub sig_b58_short: String,
+    pub txu: SubscribeUpdateTransaction,
+}
+
+
+/// Plan neutral que debe devolver extract_plan
+#[derive(Clone)]
+pub struct SwapPlan {
+    /// El VersionedMessage original **(opcional)** si lo tienes; útil para rebuild.
+    pub original_message: Option<VersionedMessage>,
+
+    /// account_keys completos (en el mismo orden que el message)
+    pub account_keys: Vec<Pubkey>,
+
+    /// instrucciones tal cual (program_id_index, accounts indices, data)
+    pub instructions: Vec<CompiledInstruction>,
+
+    /// si aplica: loaded address lookups (ALT)
+    pub loaded_addresses: Option<Vec<LoadedAddresses>>,
+
+    /// cuentas que identificamos como 'pool PDAs' (no sustituir)
+    pub pool_accounts: Vec<Pubkey>,
+
+    /// cuentas identificadas como 'trader accounts' (ATAs/payer) que deberemos sustituir
+    pub trader_accounts: Vec<Pubkey>,
+
+    /// (Opcional) amounts / min_out extraídos por decodificar data
+    pub amounts: Option<(u64, u64)>, // ejemplo: (amount_in, min_out)
+}
+
+/// Resultado: mensaje preparado (VersionedMessage) listo para firmar.
+/// Si tu pipeline necesita devolver VersionedTransaction, puedes adaptarlo.
+pub struct PreparedMessage {
+    pub message: VersionedMessage,
+}
+
+pub trait SwapAdapter {
+    fn name(&self) -> &'static str;
+    fn probe(&self, snap: &TxuSnapshot) -> bool;
+
+    /// Extrae el SwapPlan desde el txu (analiza message/ixs/data)
+    fn extract_plan(&self, snap: &TxuSnapshot) -> Result<SwapPlan>;
+
+    /// Con un plan y tu owner (pubkey), construye el VersionedMessage listo para firmar.
+    fn build_message(&self, plan: SwapPlan, my_owner: &Pubkey) -> Result<PreparedMessage>;
+}
+
+
+/// Helper: crea snapshot simple desde txu
+pub fn snapshot_from_txu(txu: SubscribeUpdateTransaction) -> TxuSnapshot {
+    let slot = txu.slot;
+    let sig_b58_short = txu
+        .transaction
+        .as_ref()
+        .and_then(|t| (!t.signature.is_empty()).then(|| bs58::encode(&t.signature).into_string()))
+        .map(|s| s.chars().take(12).collect::<String>())
+        .unwrap_or_else(|| "nosig".to_string());
+
+    TxuSnapshot { slot, sig_b58_short, txu }
+}
+
+/// Crea snapshot, selecciona adapter y devuelve el resultado.
+pub fn prepare_and_build(
+    txu: SubscribeUpdateTransaction,
+    adapters: &[Box<dyn SwapAdapter>],
+    my_owner: &Pubkey,
+) -> Result<(SwapPlan, PreparedMessage)> {
+    let snap = snapshot_from_txu(txu);
+
+    let adapter = adapters
+        .iter()
+        .find(|a| a.probe(&snap))
+        .ok_or_else(|| anyhow!("Ningún adapter reconoce este txu"))?;
+
+    let plan = adapter.extract_plan(&snap)?;
+    let prepared = adapter.build_message(plan.clone(), my_owner)?;
+    Ok((plan, prepared))
+}

src/lib.rs

@@ -1,2 +1,5 @@
-pub mod listener;
 pub mod utils;
+pub mod listener;
+pub mod engine;
+pub mod protocols;
+pub mod rpc;

src/main.rs

@@ -1,9 +1,10 @@
-use anyhow::Result;
+use anyhow::{Context, Result};
 use tokio::sync::mpsc;
 use yellowstone_grpc_proto::geyser::SubscribeUpdateTransaction;
+use yellowstone_grpc_proto::prost::Message;
 use bs58;
 use dotenvy::dotenv;
-use tracing_subscriber::EnvFilter;
+use std::fs;
 
 use sniper_bot::listener;
 use sniper_bot::listener::YellowstoneSource;
@@ -11,8 +12,14 @@ use sniper_bot::listener::YellowstoneSource;
 use sniper_bot::utils::{
     save_tx_update,
     load_keypair_and_pubkey_from_json,
+    init_tracing,
 };
 
+use sniper_bot::engine::prepare_and_build;
+use sniper_bot::protocols::default_adapters;
+use sniper_bot::rpc::{HttpRpc, Rpc, sign_versioned_tx};
+
+use solana_sdk::{hash::Hash, message::VersionedMessage};
 
 
 #[tokio::main]
@@ -22,17 +29,69 @@ async fn main() -> Result<()> {
     // Load environment variables from .env file
     dotenv().ok();
     let bundler = std::env::var("BUNDLER")?;
-    let wallet_path = std::env::var("WALLET_PATH")?;
-
-    // Wallet
-    let (kp, my_owner) = load_keypair_and_pubkey_from_json(&wallet_path)?;
-    println!("🔑 Owner: {my_owner}");
     
 
 
+    // Testing conditions
+    // 
+    let simulate_first = std::env::var("SIMULATE_FIRST").unwrap_or_else(|_| "true".to_string()) == "true";
+    let bin_path = std::env::var("BIN_PATH").context("Falta BIN_PATH en .env (o variable de entorno)")?; 
+    // 
+    //  Testing conditions
+
+    // Load wallet
+    let (kp, kp_pub) = load_keypair_and_pubkey_from_json()?;
+    eprintln!("Keypair pubkey: {}", kp_pub);
+
 
     tracing::info!("[INFO] Bot initialited");
 
+    // RPC client
+    let rpc = HttpRpc::new()?;
+
+    // Testing conditions
+    //  
+    // Cargar y decodificar el BIN a txu (protobuf)
+    let bytes = fs::read(&bin_path).with_context(|| format!("Leyendo binario: {bin_path}"))?;
+    let txu = SubscribeUpdateTransaction::decode(bytes.as_slice()).context("Decodificando prost: SubscribeUpdateTransaction")?;
+    //  
+    // Testing conditions
+
+    let adapters = default_adapters();
+    
+    // === A partir de aquí: orquestar compra ===
+    // 1) Plan + mensaje preparado (por ahora: replay 1:1)
+    let (_plan, prepared) = prepare_and_build(txu, &adapters, &kp_pub)?;
+
+    // 2) Blockhash fresco + slot
+    let (new_bh, ctx_slot) = rpc.get_latest_blockhash().await?;
+    println!("Latest slot solana: {ctx_slot}");
+
+    // 3) Actualiza blockhash del mensaje
+    let vm = set_recent_blockhash(prepared.message, new_bh);
+
+    // 4) Firma con tu keypair
+    let vtx = sign_versioned_tx(vm, &[&kp])?;
+
+    // 5) Simula (opcional)
+    if simulate_first {
+        rpc.simulate(&vtx, Some(ctx_slot)).await?;
+        println!("🧪 simulateTransaction OK");
+    }
+
+
+    // 6) Enviar
+    let sig = rpc.send_transaction(&vtx, Some(ctx_slot)).await?;
+    println!("🚀 Enviada: {}", sig);
+
+
+    // Testing conditions
+    //
+    return Ok(());
+    //
+    // Testing conditions
+    
+
     // Create a channel for transaction updates
     let (tx, mut rx) = mpsc::channel::<SubscribeUpdateTransaction>(1024);
 
@@ -77,15 +136,13 @@ async fn main() -> Result<()> {
 
 }
 
-fn init_tracing() {
-    let filter = EnvFilter::try_from_default_env()
-        .unwrap_or_else(|_| EnvFilter::new("info"));
 
-    // No peta si ya estaba inicializado (devuelve Err y lo ignoramos)
-    let _ = tracing_subscriber::fmt()
-        .with_env_filter(filter)
-        .with_target(false)
-        .try_init();
+
+
+fn set_recent_blockhash(mut vm: VersionedMessage, new_bh: Hash) -> VersionedMessage {
+    match &mut vm {
+        VersionedMessage::V0(m) => { m.recent_blockhash = new_bh; }
+        VersionedMessage::Legacy(m) => { m.recent_blockhash = new_bh; }
+    }
+    vm
 }
-
-

src/protocols.rs

@@ -0,0 +1,148 @@
+//! protocols.rs
+//! Stubs de adapters. Hoy: Meteora “siempre sí” para probar el flujo.
+//! Luego añades PumpFun/Bonk con su probe real y (más tarde) extract/build.
+
+use anyhow::{anyhow, Result};
+use solana_sdk::{
+    instruction::CompiledInstruction,
+    message::{
+        v0::{Message as V0Message, MessageAddressTableLookup as V0AddressTableLookup},
+        MessageHeader, VersionedMessage,
+    },
+    pubkey::Pubkey,
+    hash::Hash,
+};  
+use crate::engine::{PreparedMessage, SwapAdapter, SwapPlan, TxuSnapshot};
+
+pub struct MeteoraPoolsAdapter;
+impl MeteoraPoolsAdapter { pub fn new() -> Self { Self } }
+impl SwapAdapter for MeteoraPoolsAdapter {
+    fn name(&self) -> &'static str { "MeteoraPools" }
+
+    fn probe(&self, snap: &TxuSnapshot) -> bool {
+        // Aquí podrías filtrar por logs o por program_id de Meteora.
+        // Para no bloquear el flujo, seguimos aceptando.
+        let _ = snap;
+        true
+    }
+
+    fn extract_plan(&self, snap: &TxuSnapshot) -> Result<SwapPlan> {
+        // 1) Acceder al Message del protobuf (tal como viene en tu txu)
+        let txi = snap.txu.transaction.as_ref()
+            .ok_or_else(|| anyhow!("txu.transaction = None"))?;
+        let msg_pb = txi.transaction.as_ref()
+            .and_then(|t| t.message.as_ref())
+            .ok_or_else(|| anyhow!("txu.transaction.message = None"))?;
+
+        // 2) Header
+        let header_pb = msg_pb.header.as_ref()
+            .ok_or_else(|| anyhow!("txu.message.header = None"))?;
+        let header = MessageHeader {
+            num_required_signatures: header_pb.num_required_signatures as u8,
+            num_readonly_signed_accounts: header_pb.num_readonly_signed_accounts as u8,
+            num_readonly_unsigned_accounts: header_pb.num_readonly_unsigned_accounts as u8,
+        };
+
+        // 3) account_keys: [[u8;32]] -> Vec<Pubkey>
+        let account_keys: Vec<Pubkey> = msg_pb.account_keys.iter().map(|k32| {
+            let mut arr = [0u8; 32];
+            arr.copy_from_slice(&k32[..]);
+            Pubkey::new_from_array(arr)
+        }).collect();
+
+        // 4) recent_blockhash: [u8;32] -> Hash
+        let mut bh = [0u8; 32];
+        bh.copy_from_slice(&msg_pb.recent_blockhash[..]);
+        let recent_blockhash: Hash = bh.into();
+
+        // 5) instructions
+        let instructions: Vec<CompiledInstruction> = msg_pb.instructions.iter().map(|ix| {
+            CompiledInstruction {
+                program_id_index: ix.program_id_index as u8,
+                accounts: ix.accounts.iter().map(|&i| i as u8).collect(),
+                data: ix.data.clone(),
+            }
+        }).collect();
+
+        // 6) Address Lookup Tables (V0)
+        let address_table_lookups: Vec<V0AddressTableLookup> = msg_pb.address_table_lookups.iter().map(|l| {
+            let mut key = [0u8; 32];
+            key.copy_from_slice(&l.account_key[..]);
+            V0AddressTableLookup {
+                account_key: Pubkey::new_from_array(key),
+                writable_indexes: l.writable_indexes.clone(),
+                readonly_indexes: l.readonly_indexes.clone(),
+            }
+        }).collect();
+
+        // 7) Mensaje V0 reconstruido
+        let message_v0 = V0Message {
+            header,
+            account_keys: account_keys.clone(),
+            recent_blockhash,
+            instructions: instructions.clone(),
+            address_table_lookups,
+        };
+        let original_vm = VersionedMessage::V0(message_v0);
+
+
+        // 8) trader/pool accounts (queda pendiente hasta que metas tu heurística/ABI)
+        let trader_accounts: Vec<Pubkey> = Vec::new();
+        let pool_accounts: Vec<Pubkey> = Vec::new();
+
+        // 9) Por ahora, pool_accounts vacío (identificar por ABI es un siguiente paso)
+        let pool_accounts: Vec<Pubkey> = Vec::new();
+
+        Ok(SwapPlan {
+            original_message: Some(original_vm),
+            account_keys,
+            instructions,
+            loaded_addresses: None, // no hace falta aquí porque ya están en V0.address_table_lookups
+            pool_accounts,
+            trader_accounts,
+            amounts: None,
+        })
+    }
+
+    fn build_message(&self, mut plan: SwapPlan, my_owner: &Pubkey) -> Result<PreparedMessage> {
+        // Debe existir el mensaje original (v0 o legacy)
+        let mut vm = plan
+            .original_message
+            .ok_or_else(|| anyhow!("No original_message in plan"))?;
+
+        match &mut vm {
+            VersionedMessage::V0(m) => {
+                // Los primeros N account_keys son firmantes
+                let n = m.header.num_required_signatures as usize;
+                if n == 0 {
+                    return Err(anyhow!("Mensaje sin firmantes (num_required_signatures=0)"));
+                }
+                // Reemplaza TODOS los firmantes por tu pubkey (lo normal es N=1)
+                for i in 0..n {
+                    m.account_keys[i] = *my_owner;
+                }
+                // (opcional) si sospechas que había >1 firmante y tú solo vas a firmar con 1:
+                // m.header.num_required_signatures = 1; // y ajusta account_keys[0]=*my_owner
+            }
+            VersionedMessage::Legacy(m) => {
+                let n = m.header.num_required_signatures as usize;
+                if n == 0 {
+                    return Err(anyhow!("Mensaje legacy sin firmantes (num_required_signatures=0)"));
+                }
+                for i in 0..n {
+                    m.account_keys[i] = *my_owner;
+                }
+                // (opcional) m.header.num_required_signatures = 1;
+            }
+        }
+
+        Ok(PreparedMessage { message: vm })
+    }
+}
+
+
+pub fn default_adapters() -> Vec<Box<dyn SwapAdapter>> {
+    vec![
+        Box::new(MeteoraPoolsAdapter::new())
+    ]
+}

src/rpc.rs

@@ -0,0 +1,239 @@
+use anyhow::{anyhow, Context, Result};
+use async_trait::async_trait;
+use bs58;
+use base64::{engine::general_purpose::STANDARD as B64, Engine as _};
+use bincode;
+use reqwest::Client;
+use serde::{Deserialize, Serialize};
+use solana_sdk::{
+    hash::Hash,
+    signature::Keypair, // <- quitamos Signer import directo (no hace falta)
+    transaction::VersionedTransaction,
+    message::VersionedMessage,
+};
+
+#[async_trait]
+pub trait Rpc {
+    async fn get_latest_blockhash(&self) -> Result<(Hash, u64)>;
+    async fn simulate(&self, tx: &VersionedTransaction, min_context_slot: Option<u64>) -> Result<()>;
+    async fn send_transaction(&self, tx: &VersionedTransaction, min_context_slot: Option<u64>) -> Result<String>;
+}
+
+#[derive(Deserialize)]
+struct RpcContext<T> {
+    context: RpcContextInfo,
+    value: T,
+}
+
+#[derive(Deserialize)]
+struct RpcContextInfo {
+    slot: u64,
+}
+
+
+#[derive(Clone)]
+pub struct HttpRpc {
+    client: Client,
+    url: String,
+    commitment: String,
+}
+
+impl HttpRpc {
+    pub fn new() -> Result<Self> {
+        let rpc_url = std::env::var("RPC_URL")
+            .context("Falta RPC_URL en .env")?;
+
+        let commitment = std::env::var("RPC_COMMITMENT")
+            .unwrap_or_else(|_| "processed".to_string());
+
+        Ok(Self {
+            client: Client::new(),
+            url: rpc_url.into(),
+            commitment: commitment.into(),
+        })
+    }
+}
+
+/* ========= JSON-RPC payloads ========= */
+
+#[derive(Serialize)]
+struct RpcRequest<'a, T> {
+    jsonrpc: &'static str,
+    id: u64,
+    method: &'a str,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    params: Option<T>,
+}
+
+#[derive(Deserialize, Debug)]
+struct RpcResponse<T> {
+    jsonrpc: String,
+    id: u64,
+    // OJO: no pongas #[serde(default)] en genéricos; Option ya deserializa a None sin T: Default
+    result: Option<T>,
+    error: Option<RpcError>,
+}
+
+#[derive(Deserialize, Debug)]
+struct RpcError {
+    code: i64,
+    message: String,
+    #[serde(default)]
+    data: serde_json::Value,
+}
+
+#[derive(Deserialize)]
+struct GetLatestBlockhashResult {
+    value: GetLatestBlockhashValue,
+}
+
+#[derive(Deserialize)]
+struct GetLatestBlockhashValue {
+    blockhash: String,
+}
+
+#[derive(Serialize)]
+struct SimSendConfig<'a> {
+    encoding: &'a str,                 // "base64"
+    #[serde(rename = "sigVerify")]
+    sig_verify: bool,                  // false
+    #[serde(rename = "replaceRecentBlockhash")]
+    replace_recent_blockhash: bool,    // true/false
+    #[serde(rename = "commitment")]
+    commitment: &'a str,
+
+    #[serde(skip_serializing_if = "Option::is_none")]
+    preflight_commitment: Option<&'a str>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    skip_preflight: Option<bool>,
+
+    #[serde(skip_serializing_if = "Option::is_none", rename = "minContextSlot")]
+    min_context_slot: Option<u64>,
+}
+
+
+#[async_trait]
+impl Rpc for HttpRpc {
+    async fn get_latest_blockhash(&self) -> Result<(Hash, u64)> {
+        let req = RpcRequest {
+            jsonrpc: "2.0",
+            id: 1,
+            method: "getLatestBlockhash",
+            params: Some(vec![serde_json::json!({
+                "commitment": self.commitment
+            })]),
+        };
+
+        let resp: RpcResponse<RpcContext<GetLatestBlockhashValue>> = self
+            .client
+            .post(&self.url)
+            .json(&req)
+            .send()
+            .await
+            .context("HTTP getLatestBlockhash")?
+            .json()
+            .await
+            .context("JSON getLatestBlockhash")?;
+
+        if let Some(err) = resp.error {
+            return Err(anyhow!("RPC error getLatestBlockhash: {} {:?}", err.message, err.data));
+        }
+        let r = resp.result.ok_or_else(|| anyhow!("RPC: sin result en getLatestBlockhash"))?;
+        let bh_bytes = bs58::decode(&r.value.blockhash)
+            .into_vec()
+            .context("decode base58 blockhash")?;
+        let mut arr = [0u8; 32];
+        arr.copy_from_slice(&bh_bytes[..]);
+        let hash = Hash::new_from_array(arr);
+        let slot = r.context.slot;
+        Ok((hash, slot))
+    }
+
+
+    async fn simulate(&self, tx: &VersionedTransaction, min_context_slot: Option<u64>) -> Result<()> {
+        let tx_b64 = serialize_tx_base64(tx)?;
+        let cfg = SimSendConfig {
+            encoding: "base64",
+            sig_verify: false,
+            replace_recent_blockhash: false,      // usa el mismo blockhash que envías
+            commitment: &self.commitment,
+            preflight_commitment: Some(&self.commitment),
+            skip_preflight: None,
+            min_context_slot,
+        };
+
+        let req = RpcRequest {
+            jsonrpc: "2.0",
+            id: 1,
+            method: "simulateTransaction",
+            params: Some(vec![serde_json::json!(tx_b64), serde_json::to_value(cfg)?]),
+        };
+
+        let resp: RpcResponse<serde_json::Value> = self
+            .client
+            .post(&self.url)
+            .json(&req)
+            .send()
+            .await
+            .context("HTTP simulateTransaction")?
+            .json()
+            .await
+            .context("JSON simulateTransaction")?;
+
+        if let Some(err) = resp.error {
+            return Err(anyhow!("RPC error simulateTransaction: {} {:?}", err.message, err.data));
+        }
+        Ok(())
+    }
+
+    async fn send_transaction(&self, tx: &VersionedTransaction, min_context_slot: Option<u64>) -> Result<String> {
+        let tx_b64 = serialize_tx_base64(tx)?;
+        let cfg = SimSendConfig {
+            encoding: "base64",
+            sig_verify: false,
+            replace_recent_blockhash: false,
+            commitment: &self.commitment,
+            preflight_commitment: Some(&self.commitment),
+            skip_preflight: Some(false),
+            min_context_slot,                     // 👈 importante
+        };
+
+        let req = RpcRequest {
+            jsonrpc: "2.0",
+            id: 1,
+            method: "sendTransaction",
+            params: Some(vec![serde_json::json!(tx_b64), serde_json::to_value(cfg)?]),
+        };
+
+        let resp: RpcResponse<String> = self
+            .client
+            .post(&self.url)
+            .json(&req)
+            .send()
+            .await
+            .context("HTTP sendTransaction")?
+            .json()
+            .await
+            .context("JSON sendTransaction")?;
+
+        if let Some(err) = resp.error {
+            return Err(anyhow!("RPC error sendTransaction: {} {:?}", err.message, err.data));
+        }
+        let sig_b58 = resp.result.ok_or_else(|| anyhow!("RPC: sin result en sendTransaction"))?;
+        Ok(sig_b58)
+    }
+}
+
+/* ========= Helpers ========= */
+
+fn serialize_tx_base64(tx: &VersionedTransaction) -> Result<String> {
+    let bytes = bincode::serialize(tx).context("bincode serialize VersionedTransaction")?;
+    Ok(B64.encode(bytes))
+}
+
+/// Firma una VersionedTransaction con el/los keypair(s) dados.
+pub fn sign_versioned_tx(message: VersionedMessage, signers: &[&Keypair]) -> Result<VersionedTransaction> {
+    let tx = VersionedTransaction::try_new(message, signers)
+        .map_err(|e| anyhow!("VersionedTransaction::try_new: {e}"))?;
+    Ok(tx)
+}

src/utils.rs

@@ -3,6 +3,8 @@ use std::fs as std_fs;
 use std::time::{SystemTime, UNIX_EPOCH};
 use std::convert::TryFrom;
 
+use tracing_subscriber::EnvFilter;
+
 
 use anyhow::{anyhow, Context, Result};
 use bs58;
@@ -17,8 +19,9 @@ use solana_sdk::signature::{Keypair, Signer};
 /// Carga un keypair desde un JSON (array de 64 u 32 enteros) y devuelve (Keypair, Pubkey).
 /// - 64 bytes: clave secreta completa (secret + public) -> `Keypair::from_bytes`.
 /// - 32 bytes: semilla ed25519 -> `Keypair::from_seed`.
-pub fn load_keypair_and_pubkey_from_json<P: AsRef<Path>>(path: P) -> Result<(Keypair, Pubkey)> {
-    let path_ref = path.as_ref();
+pub fn load_keypair_and_pubkey_from_json() -> Result<(Keypair, Pubkey)> {
+    let wallet_path = std::env::var("WALLET_PATH")?;
+    let path_ref = Path::new(&wallet_path);
     let data = std_fs::read_to_string(path_ref)
         .with_context(|| format!("Leyendo wallet JSON: {}", path_ref.display()))?;
 
@@ -94,3 +97,15 @@ pub async fn save_tx_update(txu: &SubscribeUpdateTransaction) -> Result<(PathBuf
 
     Ok((bin_path, txt_path))
 }
+
+
+pub fn init_tracing() {
+    let filter = EnvFilter::try_from_default_env()
+        .unwrap_or_else(|_| EnvFilter::new("info"));
+
+    // No peta si ya estaba inicializado (devuelve Err y lo ignoramos)
+    let _ = tracing_subscriber::fmt()
+        .with_env_filter(filter)
+        .with_target(false)
+        .try_init();
+}