fix: lend using lulo

src/tools/lend.ts

@@ -10,61 +10,51 @@ import { SolanaAgentKit } from "../agent";
  */
 export async function lendAsset(
   agent: SolanaAgentKit,
-  amount: number,
+  amount: number
 ): Promise<string> {
   try {
     const response = await fetch(
       `https://blink.lulo.fi/actions?amount=${amount}&symbol=USDC`,
       {
         method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+        },
         body: JSON.stringify({
           account: agent.wallet.publicKey.toBase58(),
         }),
-      },
+      }
     );
 
     const data = await response.json();
 
+    // Deserialize the transaction
     const luloTxn = VersionedTransaction.deserialize(
-      Buffer.from(data.transaction, "base64"),
+      Buffer.from(data.transaction, "base64")
     );
 
+    // Get a recent blockhash and set it
+    const { blockhash } = await agent.connection.getLatestBlockhash();
+    luloTxn.message.recentBlockhash = blockhash;
+
     // Sign and send transaction
     luloTxn.sign([agent.wallet]);
-    const signature = await agent.connection.sendTransaction(luloTxn);
+
+    const signature = await agent.connection.sendTransaction(luloTxn, {
+      preflightCommitment: "confirmed",
+      maxRetries: 3,
+    });
+
+    // Wait for confirmation using the latest strategy
+    const latestBlockhash = await agent.connection.getLatestBlockhash();
+    await agent.connection.confirmTransaction({
+      signature,
+      blockhash: latestBlockhash.blockhash,
+      lastValidBlockHeight: latestBlockhash.lastValidBlockHeight,
+    });
 
     return signature;
   } catch (error: any) {
     throw new Error(`Lending failed: ${error.message}`);
   }
 }
-
-/**
- * Fetch lending details for agent
- * @param agent SolanaAgentKit instance
- * @param LULO_API_KEY Valid API key for Lulo
- * @returns Lending account details
- */
-export async function getLendingDetails(
-  agent: SolanaAgentKit,
-  LULO_API_KEY = "",
-): Promise<LuloAccountDetailsResponse> {
-  try {
-    if (!LULO_API_KEY) {
-      throw new Error("Missing Lulo API key");
-    }
-
-    const response = await fetch(`${LULO_API}/account`, {
-      headers: {
-        "x-wallet-pubkey": agent.wallet.publicKey.toBase58(),
-        "x-api-key": LULO_API_KEY,
-      },
-    });
-
-    const { data } = await response.json();
-
-    return data as LuloAccountDetailsResponse;
-  } catch (error: any) {
-    throw new Error(`Failed to fetch lending details: ${error.message}`);
-  }
-}