Fleet-sdk Pin Lock Contract

Index.ts

import { OutputBuilder, TransactionBuilder } from '@fleet-sdk/core';
import { compile } from '@fleet-sdk/compiler';
import { SByte, SColl } from '@fleet-sdk/serializer';
import { blake2b256 } from '@fleet-sdk/crypto';

(async () => {
  if (await ergoConnector.nautilus.connect()) {
    const pinLockContract = compile(
      'sigmaProp(SELF.R4[Coll[Byte]].get == blake2b256(OUTPUTS(0).R4[Coll[Byte]].get))'
    );

    console.log(pinLockContract.toHex());

    const pinNumber = '1293';

    const output1 = new OutputBuilder(
      '10000000',
      pinLockContract
    ).setAdditionalRegisters({
      R4: SColl(SByte, blake2b256(pinNumber)),
    });

    const height = await ergo.get_current_height();

    const utxo = await ergo.get_utxos();

    console.log(utxo);

    const unsignedTx = new TransactionBuilder(height)
      .from(await ergo.get_utxos()) // add inputs from dApp Connector
      .to(output1)
      .sendChangeTo(await ergo.get_change_address()) // Set the change address to the user's default change address
      .payMinFee() // set minimal transaction fee
      .build() // build the transaction
      .toEIP12Object(); // converts the ErgoUnsignedTransaction instance to an dApp Connector compatible plain object

    const signedTx = await ergo.sign_tx(unsignedTx);

    // send the signed transaction to the mempool
    const txId = await ergo.submit_tx(signedTx);

    // prints the Transaction ID of the submitted transaction on the console
    console.log(txId);
  }
})();