Initial commit

challenge1.ts

@@ -0,0 +1,27 @@
+import { Connection, LAMPORTS_PER_SOL, PublicKey } from "@solana/web3.js";
+
+const publicKeyString = "GghvcjRjgFUzkzd7kq45cdmCjxKGaobdetiY99hG4crM"; // Example address
+
+// Check if the public key is valid
+try {
+  const publicKey = new PublicKey("GgJJRwLg9NzFQ97o1CJLGLp1KLSUMBwFc6eQNVEr4fbW");
+  if (!publicKey.toString()) {
+    throw new Error("Invalid public key format");
+  }
+
+  //const connection = new Connection("https://api.devnet.solana.com", "confirmed");
+
+
+  // Connect to the Solana mainnet
+const connection = new Connection("https://api.mainnet-beta.solana.com", "confirmed");
+
+  // Fetch balance in lamports (smallest unit of SOL)
+  const balanceInLamports = await connection.getBalance(publicKey);
+
+  // Convert lamports to SOL
+  const balanceInSOL = balanceInLamports / LAMPORTS_PER_SOL;
+
+  console.log(`💰 Finished! The balance for the wallet at address ${publicKey} is ${balanceInSOL} SOL.`);
+} catch (error) {
+  console.error("Error:", error.message);
+}

check-balance.ts

@@ -0,0 +1,13 @@
+import { Connection, LAMPORTS_PER_SOL, PublicKey } from "@solana/web3.js";
+
+const publicKey = new PublicKey("GghvcjRjgFUzkzd7kq45cdmCjxKGaobdetiY99hG4crM");
+
+const connection = new Connection("https://api.devnet.solana.com", "confirmed");
+
+const balanceInLamports = await connection.getBalance(publicKey);
+
+const balanceInSOL = balanceInLamports / LAMPORTS_PER_SOL;
+
+console.log(
+  `💰 Finished! The balance for the wallet at address ${publicKey} is ${balanceInSOL}!`,
+);

example.ts

@@ -0,0 +1,14 @@
+import {
+    Connection,
+    PublicKey,
+    clusterApiUrl,
+    LAMPORTS_PER_SOL,
+  } from "@solana/web3.js";
+
+  const connection = new Connection(clusterApiUrl("devnet"));
+  const address = new PublicKey("CenYq6bDRB7p73EjsPEpiYN7uveyPUTdXkDkgUduboaN");
+  const balance = await connection.getBalance(address);
+  const balanceInSol = balance / LAMPORTS_PER_SOL;
+
+  console.log(`The balance of the account at ${address} is ${balanceInSol} SOL`);
+  console.log(`✅ Finished!`);

package.json

@@ -11,6 +11,7 @@
   "license": "ISC",
   "dependencies": {
     "@solana-developers/helpers": "^2.5.6",
+    "@solana/spl-name-service": "^0.2.1",
     "@solana/web3.js": "^1.98.0",
     "esrun": "^3.2.26",
     "typescript": "^5.7.2"