chore(examples): example for devnet transferring (#578)

examples/misc/devnet-transfer.ts

@@ -0,0 +1,72 @@
+// This example shows how to transfer 100 CKB from ALice to Bob on Devnet.
+// Note: The ScriptConfig is generated from the genesis block, therefore,
+//  it does NOT contain all common configs, such as Anyone-can-pay, Omnilock, etc. that are deployed after genesis.
+
+import { commons, config, hd, helpers, Indexer, RPC } from "@ckb-lumos/lumos";
+import { parseUnit } from "@ckb-lumos/bi";
+
+const debug = (...args: unknown[]) => console.log(new Date().toJSON(), "[info]", ...args);
+
+// let's treat testnet as a devnet
+const RPC_URL = "https://testnet.ckb.dev";
+// const RPC_URL = "http://localhost:8114";
+const ALICE_PRIVATE_KEY = "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee";
+const BOB_PRIVATE_KEY = "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
+
+async function main() {
+  const rpc = new RPC(RPC_URL);
+  const indexer = new Indexer(RPC_URL);
+
+  const genesisBlock = await rpc.getBlockByNumber("0x0");
+  const scriptConfig = config.generateGenesisScriptConfigs(genesisBlock);
+
+  const txSkeleton = helpers.TransactionSkeleton({ cellProvider: indexer }).asMutable();
+
+  const secp256k1ScriptConfig = scriptConfig.SECP256K1_BLAKE160;
+  const managerConfig = { PREFIX: "ckt", SCRIPTS: scriptConfig } as const;
+  const configParam = { config: managerConfig };
+
+  const aliceAddr = helpers.encodeToAddress(
+    {
+      codeHash: secp256k1ScriptConfig.CODE_HASH,
+      hashType: secp256k1ScriptConfig.HASH_TYPE,
+      args: hd.key.privateKeyToBlake160(ALICE_PRIVATE_KEY),
+    },
+    configParam
+  );
+
+  const bobAddr = helpers.encodeToAddress(
+    {
+      codeHash: secp256k1ScriptConfig.CODE_HASH,
+      hashType: secp256k1ScriptConfig.HASH_TYPE,
+      args: hd.key.privateKeyToBlake160(BOB_PRIVATE_KEY),
+    },
+    configParam
+  );
+
+  debug(`Alice(${aliceAddr})`, "->", `Bob(${bobAddr})`);
+  debug(`Please make sure Alice(${aliceAddr}) has enough capacity before continue`);
+
+  await commons.common.transfer(
+    txSkeleton,
+    [aliceAddr],
+    bobAddr,
+    parseUnit("100", "ckb"),
+    undefined,
+    undefined,
+    configParam
+  );
+  await commons.common.payFeeByFeeRate(txSkeleton, [aliceAddr], 1000, undefined, configParam);
+  commons.common.prepareSigningEntries(txSkeleton);
+
+  const digest = txSkeleton.get("signingEntries").get(0)!.message;
+  debug("digest for signing:", digest);
+
+  const signature = hd.key.signRecoverable(digest, ALICE_PRIVATE_KEY);
+  const tx = helpers.sealTransaction(txSkeleton, [signature]);
+
+  const txHash = await rpc.sendTransaction(tx);
+  debug("TxHash:", txHash);
+}
+
+main();

examples/misc/package.json

@@ -4,6 +4,7 @@
   "version": "1.0.0",
   "license": "MIT",
   "dependencies": {
-    "@ckb-lumos/lumos": "next"
+    "@ckb-lumos/bi": "canary",
+    "@ckb-lumos/lumos": "canary"
   }
 }