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.

تكامل TronWeb | TronEnergy Docs

تكامل كامل لـ Node.js باستخدام TronWeb . كل خطوة عبارة عن كتلة برمجية مستقلة يمكنك نسخها إلى مشروعك. ستجد المثال الكامل من البداية إلى النهاية في الأسفل.

المتطلبات الأساسية: Node.js 18+, tronweb مثبت (npm install tronweb), محفظة Tron ممولة.

التدفق

لا حاجة لمفتاح API أو التسجيل. يقوم برنامجك بإرسال TRX على سلسلة الكتل إلى عنوان دفع TronEnergy ، ويوقع رسالة تثبت ملكيته، ثم يطالب بالتفويض. تصل Energy في غضون 3 ثوانٍ تقريبًا. بعد ذلك، يرسل برنامجك USDT باستخدام الطاقة المفوضة.

التسعير خطي: 16250 Energy لكل TRX . 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.

خطوة بخطوة

1. الإعداد

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. إرسال TRX

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. المطالبة بالتفويض

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. أرسل USDT

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);
  

معالجة الأخطاء

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;
      }
    }
  

مثال كامل

انسخ هذا إلى ملف، واضبط متغيرات بيئتك، ثم شغّله. سيرسل البرنامج النصي TRX ، ويوقع الرسالة، ويطالب بالتفويض مع إعادة المحاولة، ثم يرسل USDT .

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);

احرص دائمًا على تضمين التوقيع. 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.