What TronWeb version is required?

TronWeb 6.x or later. Install via npm install tronweb. Note that the import is destructured: const { TronWeb } = require("tronweb").

Why does the signature have to come from the same wallet that sent TRX?

It is the API's only proof that you authorized the delegation. Without it, anyone watching the chain could claim energy for any payment.

TronWeb Entegrasyonu | TronEnergy Docs

TronWeb kullanarak eksiksiz Node.js entegrasyonu. Her adım, projenize kopyalayabileceğiniz bağımsız bir kod bloğudur. Uçtan uca örnek en altta yer almaktadır.

Önkoşullar: Node.js 18+, tronweb kurulu (npm install tronweb), fonlanmış bir Tron cüzdanı.

Akış

API anahtarı yok. Kayıt yok. Kodunuz, TRX zincir üzerinde TronEnergy ödeme adresine gönderir, sahipliği kanıtlayan bir mesaj imzalar ve ardından yetkilendirmeyi talep eder. Energy yaklaşık 3 saniye içinde ulaşır. Ardından kodunuz, yetkilendirilmiş enerjiyi kullanarak USDT gönderir.

Fiyatlandırma doğrusaldır: TRX başına 16.250 Energy . Minimum order 4 TRX (65,000 Energy — one standard USDT transfer), maximum 1,000 TRX (16.25M Energy). The amount you send determines exactly how much Energy comes back — there are no tiers or packages. For a single standard transfer, send 4. For a new-wallet transfer, send 8. For batch work, send more. The code below uses a trxAmount variable so you can change it in one place.

Adım adım

1. Kurulum

setup

    const { TronWeb } = require('tronweb'); // destructured: the default import is broken in v6
    
    const tronWeb = new TronWeb({
      fullHost: 'https://api.trongrid.io',
      privateKey: process.env.TRON_PRIVATE_KEY,
    });
    
    const API  = 'https://api.tronnrg.com';
    const ADDR = 'TFqUiCu1JwLHHnBNeaaVKH7Csm4aA3YhZx'; // API payment address
    const USDT = 'TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t';
  

2. TRX gönderin

send payment

    const TRX_AMOUNT = 4; // Linear: 16,250 energy per TRX. Min 4, max 1000.
    // 4 → 65k (standard) · 8 → 130k (new wallet) · 40 → 650k (10 transfers)
    
    const payment = await tronWeb.trx.sendTransaction(ADDR, TRX_AMOUNT * 1e6);
    
    console.log('Payment tx:', payment.txid);

3. Yetki Devrini Talep Edin

claim delegation

    // Sign: proves you are the sender
    const msg = `${payment.txid}:${tronWeb.defaultAddress.base58}`;
    const sig = await tronWeb.trx.signMessageV2(msg);

    const delegation = await fetch(`${API}/delegate`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        tx_hash: payment.txid,
        delegate_to: tronWeb.defaultAddress.base58,
        signature: sig,
      }),
    }).then(r => r.json());
    
    if (delegation.error) {
      throw new Error(delegation.message);
    }
    
    console.log('Energy delegated:', delegation.energy); // TRX_AMOUNT × 16,250
  

4. USDT gönderin

send usdt

    const contract = await tronWeb.contract().at(USDT);
    const tx = await contract.transfer(
      recipientAddress, Math.round(usdtAmount * 1e6)
    ).send({ feeLimit: 50_000_000 });
    
    console.log('USDT sent:', tx);
  

Hata Yönetimi

handling errors

    const result = await fetch(`${API}/delegate`, { ... })
      .then(r => r.json());
    
    if (result.error) {
      switch (result.error) {
        case 'payment_verification_failed':
          // Payment not yet indexed on-chain. Wait 3s and retry.
          break;
        case 'hash_already_used':
          // Already claimed. Don't retry.
          break;
        case 'signature_mismatch':
          // Sender of TRX != signer of the message. Sign with the same key.
          break;
        case 'delegation_failed':
          // Provider could not deliver. Retry or contact support with result.ref.
          break;
      }
    }
  

Tam Örnek

Bunu bir dosyaya kopyalayın, ortam değişkenlerinizi ayarlayın ve çalıştırın. Komut dosyası TRX gönderir, mesajı imzalar, yeniden deneme seçeneğiyle yetkilendirmeyi talep eder ve ardından USDT gönderir.

delegate-energy.js

const { TronWeb } = require('tronweb'); // destructured: default import is broken in v6

const tronWeb = new TronWeb({
  fullHost: 'https://api.trongrid.io',
  privateKey: process.env.TRON_PRIVATE_KEY,
});

const API  = 'https://api.tronnrg.com';
const ADDR = 'TFqUiCu1JwLHHnBNeaaVKH7Csm4aA3YhZx';
const USDT = 'TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t';

async function claimWithRetry(txHash, delegateTo, signature, retries = 3) {
  for (let i = 0; i < retries; i++) {
    const res = await fetch(`${API}/delegate`, {
      method:  'POST',
      headers: { 'Content-Type': 'application/json' },
      body:    JSON.stringify({ tx_hash: txHash, delegate_to: delegateTo, signature }),
    }).then(r => r.json());

    if (!res.error) return res;
    if (res.error !== 'payment_verification_failed') throw new Error(res.message);
    await new Promise(r => setTimeout(r, 3000));
  }
  throw new Error('Transaction not found after retries');
}

async function main() {
  const recipient  = 'TRecipientWallet';
  const trxAmount = 4; // min 4, max 1000 — you get trxAmount × 16,250 energy

  // 1. Send TRX (linear pricing: 16,250 energy per TRX)
  const payment = await tronWeb.trx.sendTransaction(ADDR, trxAmount * 1e6);
  console.log('Payment:', payment.txid);

  // 2. Claim delegation
  // Sign: proves you are the sender
  const message = `${payment.txid}:${recipient}`;
  const signature = await tronWeb.trx.signMessageV2(message);

  const result = await claimWithRetry(payment.txid, recipient, signature);
  console.log('Delegated:', result.energy, 'energy');
  console.log('Delegation tx:', result.delegations[0].tx);  // verify on TronScan
  console.log('Ref:', result.ref);

  // 3. Send USDT
  const contract = await tronWeb.contract().at(USDT);
  const tx = await contract.transfer(recipient, 10 * 1e6).send();
  console.log('USDT sent:', tx);
}

main().catch(console.error);

İmzayı mutlaka ekleyin. It proves you are the wallet that sent the TRX. Without it, the API rejects the request with missing_signature. The signature is what makes the API safe to use without an API key: it cryptographically proves you authorised the delegation.