app.js

#!/usr/bin/env ts-node

const { initWasm, TW, KeyStore } = require("@trustwallet/wallet-core");
const { Request } = require("node-fetch");

async function main() {
  const start = new Date().getTime();
  console.log(`Initializing Wasm...`);
  const core = await initWasm();
  const { CoinType, HexCoding, HDWallet, AnyAddress, AnySigner } = core;
  console.log(`Done in ${new Date().getTime() - start} ms`);

  const wallet = HDWallet.createWithMnemonic("*************", "")
  const key = wallet.getKeyForCoin(CoinType.tron);
  const pubKey = key.getPublicKeySecp256k1(false);
  const address = AnyAddress.createWithPublicKey(pubKey, CoinType.tron);

  const wallet2 = HDWallet.createWithMnemonic("*************", "")
  const key2 = wallet2.getKeyForCoin(CoinType.tron);
  const pubKey2 = key2.getPublicKeySecp256k1(false);
  const address2 = AnyAddress.createWithPublicKey(pubKey2, CoinType.tron);
  console.log();
  const from = address.description()
  const to = address2.description()


  let now_block = await fetch("https://nile.trongrid.io/wallet/getnowblock", {method: "POST"}).
  then(resp => resp.json()).catch(err => console.error(err))
  console.log("NOW", now_block);

  let options = {
    method: 'POST',
    headers: {accept: 'application/json', 'content-type': 'application/json'},
    body: JSON.stringify({num: now_block.block_header.raw_data.number-10})
  };
  let prev_block = await fetch("https://nile.trongrid.io/wallet/getblockbynum", options).
  then(resp => resp.json()).catch(err => console.error(err))

  console.log("prev", prev_block)
  let transaction = TW.Tron.Proto.Transaction.fromObject({
    timestamp: prev_block.block_header.raw_data.timestamp,
    expiration: prev_block.block_header.raw_data.timestamp + (10*60*60*1000),
    feeLimit: 100000000,
    transferAsset: TW.Tron.Proto.TransferAssetContract.fromObject({
      assetName: 'TRX',
      ownerAddress: from,
      toAddress: to,
      amount: 10000,
    }),
    blockHeader: TW.Tron.Proto.BlockHeader.fromObject({
      txTrieRoot: HexCoding.decode(prev_block.block_header.raw_data.txTrieRoot),
      parentHash: HexCoding.decode(prev_block.block_header.raw_data.parentHash),
      witness_address: HexCoding.decode(prev_block.block_header.raw_data.witness_address),
      number: prev_block.block_header.raw_data.number,
      version: prev_block.block_header.raw_data.version,
      timestamp: prev_block.block_header.raw_data.timestamp,
    })
  })
  console.log("transaction", transaction);
  let input = TW.Tron.Proto.SigningInput.fromObject({
    transaction: transaction,
    privateKey: key.data()
  })

  let result = AnySigner.sign(TW.Tron.Proto.SigningInput.encode(input).finish(), CoinType.tron)
  console.log("result", result)
  let output = TW.Tron.Proto.SigningOutput.decode(result)
  console.log("output", output)
  console.log("output_json", output.toJSON())


  options = {
    method: 'POST',
    headers: {accept: 'application/json', 'content-type': 'application/json'},
    body: output.toJSON().json
  };
  console.log("body",options.body);

  fetch('https://nile.trongrid.io/wallet/broadcasttransaction', options)
      .then(response => { console.log("souce resp", response); return response.json();})
      .then(response => console.log("resp",response))
      .catch(err => console.error("Err",err));


  wallet.delete();
  key.delete();
  pubKey.delete();
  address.delete();
}

main();