lend and withdraw asset with lulo, not only usdc

src/tools/lulo/index.ts

@@ -1 +1,3 @@
 export * from "./lend";
+export * from "./lulo_lend";
+export * from "./lulo_withdraw";

src/tools/lulo/lulo_lend.ts

@@ -0,0 +1,64 @@
+import { VersionedTransaction } from "@solana/web3.js";
+import { SolanaAgentKit } from "../../index";
+
+/**
+ * Lend tokens for yields using Lulo
+ * @param agent SolanaAgentKit instance
+ * @param mintAddress SPL Mint address
+ * @param amount Amount to lend
+ * @returns Transaction signature
+ */
+export async function luloLend(
+  agent: SolanaAgentKit,
+  mintAddress: string,
+  amount: number,
+): Promise<string> {
+  try {
+    const response = await fetch(
+      `https://api.flexlend.fi/generate/account/deposit?priorityFee=50000`,
+      {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+          "x-wallet-pubkey": agent.wallet.publicKey.toBase58(),
+          "x-api-key": process.env.FLEXLEND_API_KEY!
+        },
+        body: JSON.stringify({
+          owner: agent.wallet.publicKey.toBase58(),
+          mintAddress: mintAddress,
+          depositAmount: amount.toString(),
+        }),
+      },
+    );
+    const { data: { transactionMeta } } = await response.json()
+
+    // Deserialize the transaction
+    const luloTxn = VersionedTransaction.deserialize(
+      Buffer.from(transactionMeta[0].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, {
+      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}`);
+  }
+}

src/tools/lulo/lulo_withdraw.ts

@@ -0,0 +1,69 @@
+import { VersionedTransaction } from "@solana/web3.js";
+import { SolanaAgentKit } from "../../index";
+
+/**
+ * Withdraw tokens for yields using Lulo
+ * @param agent SolanaAgentKit instance
+ * @param mintAddress SPL Mint address
+ * @param amount Amount to withdraw
+ * @returns Transaction signature
+ */
+export async function luloWithdraw(
+  agent: SolanaAgentKit,
+  mintAddress: string,
+  amount: number,
+): Promise<string> {
+  try {
+    if (!agent.config.FLEXLEND_API_KEY) {
+      throw new Error("Lulo API key not found in agent configuration");
+    }
+
+    const response = await fetch(
+      `https://api.flexlend.fi/generate/account/withdraw?priorityFee=50000`,
+      {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+          "x-wallet-pubkey": agent.wallet.publicKey.toBase58(),
+          "x-api-key": agent.config.FLEXLEND_API_KEY
+        },
+        body: JSON.stringify({
+          owner: agent.wallet.publicKey.toBase58(),
+          mintAddress: mintAddress,
+          depositAmount: amount,
+        }),
+      },
+    );
+
+    const { data: { transactionMeta } } = await response.json()
+
+    // Deserialize the transaction
+    const luloTxn = VersionedTransaction.deserialize(
+      Buffer.from(transactionMeta[0].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, {
+      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}`);
+  }
+}