add compress with delegate example (#14)

Author: SwenSchaeferjohann

package.json

@@ -10,6 +10,7 @@
     "connection": "ts-node src/scripts/connection.ts",
     "lookup-table": "ts-node src/scripts/lookup-table.ts",
     "batch-compress": "ts-node src/scripts/batch-compress.ts",
+    "compress-with-delegate": "ts-node src/scripts/compress-with-delegate.ts",
     "mint-spl": "ts-node src/scripts/mint-spl.ts",
     "mint-spl-22": "ts-node src/scripts/mint-spl-22.ts",
     "mint-spl-22-manual": "ts-node src/scripts/mint-spl-22-manual.ts",

src/scripts/compress-with-delegate.ts

@@ -0,0 +1,74 @@
+import { Rpc, confirmTx, createRpc } from "@lightprotocol/stateless.js";
+import { compress, createMint } from "@lightprotocol/compressed-token";
+import {
+  getOrCreateAssociatedTokenAccount,
+  mintTo as mintToSpl,
+  approve,
+} from "@solana/spl-token";
+import { PAYER_KEYPAIR, RPC_ENDPOINT } from "../constants";
+import { Keypair } from "@solana/web3.js";
+
+const payer = PAYER_KEYPAIR;
+const delegate = Keypair.generate();
+const recipient = Keypair.generate();
+console.log(`delegate: ${delegate.publicKey.toBase58()}`);
+console.log(`recipient: ${recipient.publicKey.toBase58()}`);
+
+// Ensure you have light test-validator running
+const connection: Rpc = createRpc();
+
+(async () => {
+  /// airdrop lamports to pay fees
+  await confirmTx(
+    connection,
+    await connection.requestAirdrop(payer.publicKey, 1e7)
+  );
+
+  const { mint, transactionSignature } = await createMint(
+    connection,
+    payer,
+    payer.publicKey,
+    9
+  );
+  console.log(`create-mint success! txId: ${transactionSignature}`);
+
+  // Get ATA
+  const ata = await getOrCreateAssociatedTokenAccount(
+    connection,
+    payer,
+    mint,
+    payer.publicKey
+  );
+
+  /// Mint SPL
+  const mintTxId = await mintToSpl(
+    connection,
+    payer,
+    mint,
+    ata.address,
+    payer.publicKey,
+    1e5
+  );
+  console.log(`mint success! txId: ${mintTxId}`);
+
+  const approveTxId = await approve(
+    connection,
+    payer,
+    ata.address,
+    delegate.publicKey,
+    payer.publicKey,
+    1e5
+  );
+  console.log(`approve success! txId: ${approveTxId}`);
+
+  const compressTxId = await compress(
+    connection,
+    payer,
+    mint,
+    1e5,
+    delegate,
+    ata.address,
+    recipient.publicKey
+  );
+  console.log(`compress success! txId: ${compressTxId}`);
+})();