Code Examples

import { ccc } from "@ckb-ccc/ccc";
import { render, signer } from "@ckb-ccc/playground";

// The receiver is the signer itself on mainnet
const receiver = await signer.getRecommendedAddress();
console.log(receiver);

// Parse the receiver script from an address
const { script: lock } = await ccc.Address.fromString(receiver, signer.client);

// Describe what we want
const tx = ccc.Transaction.from({
  outputs: [{ capacity: ccc.fixedPointFrom(100), lock }],
});
await render(tx);

// Complete missing parts: Fill inputs
await tx.completeInputsByCapacity(signer);
await render(tx);

// Complete missing parts: Pay fee
await tx.completeFeeBy(signer);
await render(tx);

import { ccc } from "@ckb-ccc/ccc";
import { client, signer as playgroundSigner } from "@ckb-ccc/playground";

// The default signer can not sign message
// Create a new one when needed
const signer: ccc.Signer =
  playgroundSigner instanceof ccc.SignerCkbPublicKey
    ? new ccc.SignerCkbPrivateKey(client, "01".repeat(32))
    : playgroundSigner;
const message = "Hello world";

// Sign message
const signature = await signer.signMessage("Hello world");
console.log(signature);

console.log(
  `Verification should pass: ${await ccc.Signer.verifyMessage(message, signature)}`,
);
console.log(
  `Verification should fail: ${await ccc.Signer.verifyMessage("Wrong message", signature)}`,
);