⚡Rent Tron Energy PHP - IEXBase TronAPI
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This guide will walk you through the process of using TronNRG to rent energy for your application programmatically. By integrating with TronNRG, you can create a seamless user experience for your customers. The following steps demonstrate how to perform this integration using PHP and The IEXBase TronAPI.
Please ensure that you have properly configured IEXBase TronAPI before proceeding.
TronNRG offers a unique solution for renting energy for Tron transactions, allowing users to rent only the amount of energy needed for a single transaction. This feature can significantly reduce transaction fees and enhance cost efficiency for your users.
By integrating with TronNRG, your business gains access to our cutting-edge energy rental platform, providing exceptional benefits for both you and your users. Our unique system allows companies to integrate our platform seamlessly into their existing systems with just a few lines of code. This opens up new revenue streams and enhances user experiences with cost-effective transactions.
Step 1: Install and configure IEXBASE TronAPI
First we need to install IEXBASE TronAPI using composer
> composer require iexbase/tron-api --ignore-platform-reqsStep 2: initialize IEXBASE TronAPI and import the TronNRGSDK
Now we need to set up some IEXBASE and import the NRG SDK which can be downloaded below
Now we need to set up our IEXBASE using...
Your private key
Your address
Then initialize the NRG class with the IEXBASE variable
<?php
require 'vendor/autoload.php';
use IEXBase\TronAPI\Tron;
use IEXBase\TronAPI\Exception\TronException;
require 'TronNRG.php';
$fullNode = new \IEXBase\TronAPI\Provider\HttpProvider('https://api.trongrid.io');
$solidityNode = new \IEXBase\TronAPI\Provider\HttpProvider('https://api.trongrid.io');
$eventServer = new \IEXBase\TronAPI\Provider\HttpProvider('https://api.trongrid.io');
// Initialize Tron
try {
$tron = new Tron($fullNode, $solidityNode, $eventServer);
$tron->setPrivateKey("Replace with your private key");
$tron->setAddress("Replace with the address associated with your private key");
$NRG = new TronNRG($tron); // Initialize the TronNRG SDK
} catch (TronException $e) {
exit($e->getMessage());
}
// Example values to use for our function call
$address = "Replace with your target address"; // Replace with your target address the address you wish to apply energy to
$unitType = 1;
$amount = 10000; // amount of energy units
$affiliate = 0; // affiliate id if you have one from https://tronnrg.com/Register
$rentalPeriod = 1; // For example, 1 hour
// Call the checkAndRentEnergy function this will check if their is enough available enegry and then rent it to the address
$NRG->checkAndRentNRG($address, $unitType, $amount, $affiliate, $rentalPeriod);
?>If you are applying energy to other users accounts you may consider joining the NRG affiliate program, which allows you to earn 5% commission from your sales. Get your ID and pass it into the call.
Call the buyEnergy function with the following parameters:
address: The address to delegate resources to
unitType: Integer value 1
amount: The amount of energy to rent
affiliate: The affiliate ID number, if available; otherwise, use 0 as the default
rentalPeriod: The length of the rental period in hours or days, depending on the unitType
Our easy to use SDK allows you to easy check current energy levels, get a quote and place an order in one easy to use function. You can also expose any of the functions to check energy levels and get a quote if you would like to do this separately below is the full SDK file.
<?php
require 'vendor/autoload.php';
use IEXBase\TronAPI\Tron;
class TronNRG
{
private $NRGSmartContractAddress = "TEeLFcbSc2LFSFrTZnWRCacZzo3ZtBybh2";
private $NRGAbi;
private $tron;
public function __construct(Tron $tron)
{
$this->NRGAbi = json_decode('[{ "stateMutability": "Nonpayable", "type": "Constructor" }, { "inputs": [{ "indexed": true, "name": "user", "type": "address" }, { "indexed": true, "name": "trxClaimed", "type": "uint256" }], "name": "commissionClaimed", "type": "Event" }, { "inputs": [{ "indexed": true, "name": "_buyer", "type": "address" }, { "name": "energyAmount", "type": "uint256" }, { "indexed": true, "name": "expireTime", "type": "uint256" }, { "indexed": true, "name": "affiliateID", "type": "uint256" }, { "name": "amountToFreeze", "type": "uint256" }, { "name": "rentalPeriod", "type": "uint256" }, { "name": "rentalTypeUnit", "type": "uint8" }], "name": "energyPurchase", "type": "Event" }, { "inputs": [{ "indexed": true, "name": "user", "type": "address" }, { "indexed": true, "name": "expireTime", "type": "uint256" }, { "name": "unfreezeAmount", "type": "uint256" }], "name": "energyUnfreeze", "type": "Event" }, { "inputs": [{ "indexed": true, "name": "user", "type": "address" }, { "indexed": true, "name": "nrgAmount", "type": "uint256" }, { "indexed": true, "name": "affiliate", "type": "uint256" }], "name": "nrgAdded", "type": "Event" }, { "inputs": [{ "indexed": true, "name": "user", "type": "address" }, { "indexed": true, "name": "nrgAmount", "type": "uint256" }, { "indexed": true, "name": "affiliate", "type": "uint256" }], "name": "nrgCompounded", "type": "Event" }, { "inputs": [{ "indexed": true, "name": "user", "type": "address" }, { "name": "nrgAmount", "type": "uint256" }], "name": "removeTimerStarted", "type": "Event" }, { "inputs": [{ "indexed": true, "name": "user", "type": "address" }, { "name": "unfreezeStarted", "type": "bool" }, { "name": "exitTime", "type": "uint256" }, { "name": "amount", "type": "uint256" }], "name": "unfreezeInfo", "type": "Event" }, { "inputs": [{ "name": "_switch", "type": "bool" }], "name": "BuySwitch", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "type": "address" }], "name": "DAOContract", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "bool" }], "inputs": [{ "type": "address" }], "name": "DAORole", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "_switch", "type": "bool" }], "name": "NRGProvidersSwitch", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "type": "address" }], "name": "NRGToken", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "address" }], "name": "ProxyContract", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "amount", "type": "uint256" }], "name": "StakeForEnergy", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "type": "address" }], "name": "StakingContract", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "contractAddress", "type": "address" }], "name": "addApprovedContract", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "al", "type": "address" }], "name": "addToAL", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "ar", "type": "address" }], "name": "addToAdminList", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "dr", "type": "address" }], "name": "addToDaoList", "stateMutability": "Nonpayable", "type": "Function" }, { "name": "addToTeamBufferAndFreeze", "stateMutability": "Payable", "type": "Function" }, { "inputs": [{ "name": "amount", "type": "uint256" }], "name": "addToTeamBufferAndFreezeFromVotingRewards", "stateMutability": "Payable", "type": "Function" }, { "name": "addToTeamBufferWithoutFreeze", "stateMutability": "Payable", "type": "Function" }, { "outputs": [{ "name": "reward", "type": "uint256" }], "inputs": [{ "name": "user", "type": "address" }, { "name": "recipient", "type": "address" }], "name": "adminRewards", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "type": "bool" }], "inputs": [{ "type": "address" }], "name": "adminRole", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "bool" }], "inputs": [{ "type": "address" }], "name": "allowList", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "name": "available", "type": "uint256" }], "name": "availableForFreeze", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "_receiver", "type": "address" }, { "name": "_energyRentalUnit", "type": "uint8" }, { "name": "_energyAmount", "type": "uint256" }, { "name": "affiliate", "type": "uint256" }, { "name": "_rentalPeriod", "type": "uint256" }], "name": "buyEnergy","outputs": [], "stateMutability": "Payable", "type": "Function" }, { "outputs": [{ "name": "total", "type": "uint256" }, { "name": "unfreezeTime", "type": "uint256" }], "inputs": [{ "name": "_energyRentalUnit", "type": "uint8" }, { "name": "_energyAmount", "type": "uint256" }, { "name": "rentalPeriod", "type": "uint256" }], "name": "calculatePrice", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "bool" }], "inputs": [{ "name": "user", "type": "address" }], "name": "canRemoveNRG", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "name": "unstaked", "type": "bool" }], "inputs": [{ "name": "amount", "type": "uint256" }], "name": "canUnStakeTP", "stateMutability": "View", "type": "Function" }, { "name": "cancelremoveNRG", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "user", "type": "address" }], "name": "cancelremoveNRGForUser", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "comm", "type": "address" }], "name": "changeCommunityAddress", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "_DAO", "type": "address" }], "name": "changeDAO", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "amount", "type": "uint256" }], "name": "changeEnergyPrice", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "_maxDays", "type": "uint256" }], "name": "changeMaxDays", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "val", "type": "uint256" }], "name": "changeMinOrder", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "_owner", "type": "address" }], "name": "changeOwner", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "teamP", "type": "uint256" }, { "name": "userP", "type": "uint256" }, { "name": "commP", "type": "uint256" }, { "name": "stakeP", "type": "uint256" }], "name": "changePercentages", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "_proxy", "type": "address" }], "name": "changeProxy", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "val", "type": "uint256" }], "name": "changeRegenerationPeriodMultiplier", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "_staking", "type": "address" }], "name": "changeStaking", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "val", "type": "uint256" }], "name": "changeUnstakePeriod", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "name": "reward", "type": "uint256" }], "inputs": [{ "name": "user", "type": "address" }], "name": "claimRewards", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "name": "reward", "type": "uint256" }], "inputs": [{ "name": "user", "type": "address" }, { "name": "recipient", "type": "address" }], "name": "claimRewardsToDifferentAddress", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "name": "pending", "type": "uint256" }], "inputs": [{ "name": "userAddr", "type": "address" }], "name": "claimable", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "address" }], "name": "community", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "communityFunds", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "communityFundsP", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "user", "type": "address" }], "name": "compound", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "name": "dailyIncome", "type": "uint256" }, { "name": "unstakePeriod", "type": "uint256" }, { "name": "maxDays", "type": "uint256" }, { "name": "energyPrice", "type": "uint256" }, { "name": "staked", "type": "uint256" }, { "name": "accTokensPerShare", "type": "uint256" }, { "name": "amountScheduledOut", "type": "uint256" }, { "name": "frozen", "type": "uint256" }, { "name": "regenerationPeriodMultiplier", "type": "uint256" }, { "name": "minOrder", "type": "uint256" }], "name": "energyInfo", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "bool" }], "inputs": [{ "type": "address" }], "name": "exitBool", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "type": "address" }], "name": "exitRequest", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "type": "address" }], "name": "exitRequestAmount", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "int256" }], "name": "getAvailableEnergy", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "name": "target", "type": "address" }], "name": "getAvailableUnfreezeV2Size", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "name": "totalAmount", "type": "uint256" }, { "name": "frozenAmount", "type": "uint256" }], "name": "getBuffer", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "getCurrentEnegryRate", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "name": "unitType", "type": "uint256" }], "name": "getDelegatableResource", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "user", "type": "address" }, { "name": "affiliate", "type": "uint256" }], "name": "getNRG", "stateMutability": "Payable", "type": "Function" }, { "outputs": [{ "type": "uint256" }, { "type": "uint256" }], "inputs": [{ "name": "target", "type": "address" }], "name": "getResourceUsage", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "name": "b", "type": "address" }], "name": "getResourceV2", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "name": "resourceType", "type": "uint256" }], "name": "getTotalAcquiredResource", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "name": "resourceType", "type": "uint256" }], "name": "getTotalDelegatedResource", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "name": "target", "type": "address" }], "name": "getTotalResource", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "bool" }], "inputs": [{ "type": "address" }], "name": "isApprovedContract", "stateMutability": "View", "type": "Function" }, { "name": "manageFunds", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "_receiver", "type": "address" }, { "name": "_energyRentalUnit", "type": "uint8" }, { "name": "_energyAmount", "type": "uint256" }, { "name": "affiliate", "type": "uint256" }, { "name": "_rentalPeriod", "type": "uint256" }], "name": "orderBookBuy", "stateMutability": "Payable", "type": "Function" }, { "outputs": [{ "type": "address" }], "name": "owner", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "name": "_owner", "type": "address" }], "name": "queryReceivedVoteCount", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "queryRewardBalance", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "queryTotalAvailableToVote", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "queryTotalVoteCount", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "queryUsedVoteCount", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "name": "to", "type": "address" }], "name": "queryVoteCountBySr", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "readStaked", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "al", "type": "address" }], "name": "remFromAL", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "ar", "type": "address" }], "name": "remFromAdminList", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "dr", "type": "address" }], "name": "remFromDaoList", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "contractAddress", "type": "address" }], "name": "removeApprovedContract", "stateMutability": "Nonpayable", "type": "Function" }, { "name": "removeCommFunds", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "user", "type": "address" }], "name": "removeNRG", "stateMutability": "Nonpayable", "type": "Function" }, { "name": "removeTeamFunds", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "inputs": [{ "type": "address" }], "name": "rewardDebt", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "token", "type": "address" }, { "name": "staking", "type": "address" }, { "name": "proxy", "type": "address" }, { "name": "dao", "type": "address" }, { "name": "teamP", "type": "uint256" }, { "name": "userP", "type": "uint256" }, { "name": "commP", "type": "uint256" }, { "name": "stakeP", "type": "uint256" }], "name": "setUp", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "name": "setUpDone", "type": "bool" }, { "name": "userFailSafeEnabled", "type": "bool" }, { "name": "stopNRG", "type": "bool" }, { "name": "stopBuy", "type": "bool" }, { "name": "removeNRGOverride", "type": "bool" }, { "name": "allowCompound", "type": "bool" }], "name": "settings", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "stakingFunds", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "stakingFundsP", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "user", "type": "address" }, { "name": "amount", "type": "uint256" }], "name": "startRemoveTimer", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "teamBufferFrozen", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "teamBufferTotal", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "teamFunds", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "teamFundsP", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "amount", "type": "uint256" }], "name": "unStakeTP", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "user", "type": "address" }, { "name": "amount", "type": "uint256" }], "name": "unfreezeForUser", "stateMutability": "Nonpayable", "type": "Function" }, { "name": "unfreezeToContract", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "unstakePeriodInDaysTime", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "unstakePeriodNetworkSetting", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "amount", "type": "uint256" }], "name": "unstakeTeamBuffer", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "_allowCompound", "type": "bool" }], "name": "updateAllowCompound", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "_newVal", "type": "bool" }], "name": "updateNRGRemoveOverride", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "_from", "type": "address" }, { "name": "_to", "type": "address" }, { "name": "_amount", "type": "uint256" }, { "name": "_caller", "type": "address" }], "name": "updateUserRewardDebt", "stateMutability": "Nonpayable", "type": "Function" }, { "name": "userFailSafe", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "enabled", "type": "bool" }], "name": "userFailSafeEnabledToggle", "stateMutability": "Nonpayable", "type": "Function" }, { "name": "userFailSafeMaintainingRewardDebt", "stateMutability": "Nonpayable", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "userFunds", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "uint256" }], "name": "userFundsP", "stateMutability": "View", "type": "Function" }, { "outputs": [{ "type": "bool" }], "name": "viewUserFailSafeEnabled", "stateMutability": "View", "type": "Function" }, { "inputs": [{ "name": "srList", "type": "address[]" }, { "name": "tpList", "type": "uint256[]" }], "name": "voteWitness", "stateMutability": "Nonpayable", "type": "Function" }, { "inputs": [{ "name": "amount", "type": "uint256" }], "name": "widthdrawTeamBuffer", "stateMutability": "Nonpayable", "type": "Function" }, { "name": "withdrawVotingReward", "stateMutability": "Nonpayable", "type": "Function" }, { "name": "withdrawVotingRewardToContract", "stateMutability": "Nonpayable", "type": "Function" }]',true);
$this->tron = $tron;
}
/**
* Calculate the available energy.
*
* This function computes the energy available based on the:
* 1. Delegatable Resource
* 2. Scheduled energy amount
* 3. Current Energy Rate
*
* The formula used is:
* energyAvailableNow = (getDelegatableResource - amountScheduledOut) / 1,000,000 * currentEnegryRate
*
* @return mixed Returns the calculated available energy, or false if there's an error.
*/
public function getAvailableEnergy() {
try {
// Fetch the delegatable resource. This represents the amount of energy that can be delegated or used.
$getDelegatableResource = ceil((int)$this->readTransaction("getDelegatableResource",[1])[0]->value);
// Get the amount of energy that is scheduled to be used or released.
$amountScheduledOut = round((int)$this->readTransaction("energyInfo",[])["amountScheduledOut"]->value);
// Get the current rate at which energy is consumed or generated.
$currentEnegryRate = (int)$this->readTransaction("getCurrentEnegryRate",[])[0]->value;
// Calculate the amount of energy available now.
$energyAvailableNow = ceil(($getDelegatableResource - $amountScheduledOut) / 1000000 * $currentEnegryRate);
error_log("INFO: Calculated energy available now: $energyAvailableNow");
return $energyAvailableNow;
} catch (Exception $e) {
error_log("ERROR: Error while calculating available energy: " . $e->getMessage());
return false;
}
}
/**
* Read a transaction from the blockchain.
*
* This function triggers a constant contract, which reads data from the blockchain without
* It uses the provided method name and parameters to fetch the desired
* data.
*
* @param string $methodName The name of the contract method to trigger.
* @param array $params The parameters to pass to the contract method. Default is an empty array.
* @return mixed The result of the triggered contract method, or false if there's an error.
*/
public function readTransaction($methodName, $params = []) {
try {
$transactionBuilder = $this->tron->getTransactionBuilder();
$result = $transactionBuilder->triggerConstantContract(
$this->NRGAbi,
$this->tron->toHex($this->NRGSmartContractAddress),
$methodName,
$params,
$this->tron->getAddress()["hex"]
);
error_log("INFO: Successfully read transaction using method: $methodName");
return $result;
} catch (Exception $e) {
error_log("ERROR: Error while reading transaction using method: $methodName. Error: " . $e->getMessage());
return false;
}
}
/**
* Send a transaction to the blockchain.
*
* This function triggers a smart contract which incurs a transaction cost. It uses
* the provided method name, parameters, and call value to execute the desired transaction.
*
* @param string $methodName The name of the contract method to trigger.
* @param array $params The parameters to pass to the contract method.
* @param int $callValue The amount of TRX to send with the transaction.
* @return mixed The result of the triggered contract method, or false if there's an error.
*/
public function sendTransaction($methodName, $params = [], $callValue) {
try {
$transactionBuilder = $this->tron->getTransactionBuilder();
return $transactionBuilder->triggerSmartContract(
$this->NRGAbi,
$this->tron->toHex($this->NRGSmartContractAddress),
$methodName,
$params,
450000000,
$this->tron->getAddress()["hex"],
$callValue
);
} catch (Exception $e) {
error_log("ERROR: Error while sending transaction using method: $methodName. Error: " . $e->getMessage());
return false;
}
}
/**
* Rent energy from the blockchain.
*
* This function will calculate the required cost to rent the energy and then initiate the
* necessary transaction to execute the rental.
*
* @param string $address The address to delegate resources to.
* @param int $unitType The type of unit. 1 is the default.
* @param int $amount The amount of energy to rent.
* @param int $affiliate The affiliate ID number; use 0 if not provided.
* @param int $rentalPeriod The length of the rental period in hours or days, based on unitType.
* @return mixed The result of the rental transaction, or false if there's an error.
*/
public function rentEnergy($address, $unitType = 1, $amount, $affiliate = 0, $rentalPeriod) {
try {
// Ensure the address is in the right format
$hexAddress = $this->tron->toHex($address);
// Parameters for the buyEnergy method in the smart contract
$params = [$hexAddress, $unitType, $amount, $affiliate, $rentalPeriod];
// Calculate the required call value based on the desired energy amount and other parameters
$callValue = $this->getQuote($unitType, $amount, $rentalPeriod);
$result = $this->sendTransaction("buyEnergy", $params, (int)$callValue);
$signedTransaction = $this->tron->signTransaction($result);
$res = $this->tron->sendRawTransaction($signedTransaction);
error_log("INFO: Successfully rented energy.");
return $res;
} catch (Exception $e) {
error_log("ERROR: Error while renting energy. Error: " . $e->getMessage());
return false;
}
}
/**
* Checks the available energy, gets a quote for the specified energy amount,
* and rents energy if there is enough energy available.
*
* @param string $address The address to delegate resources to.
* @param int $unitType Type of unit (e.g., 1 represents some specific type).
* @param int $amount The amount of energy to rent.
* @param int $affiliate The affiliate ID number; use 0 if not available.
* @param int $rentalPeriod The length of the rental period in hours or days, based on the unitType.
*/
function checkAndRentNRG($address, $unitType, $amount, $affiliate, $rentalPeriod) {
// Fetch the available energy
$availableEnergy = $this->getAvailableEnergy();
// Display the current available energy
echo "Available energy: " . $availableEnergy . " units.\n";
// Check if there's enough energy available to meet the desired amount
if ($availableEnergy >= $amount) {
// If there's enough energy, get a quote for renting the specified amount of energy
$quote = $this->getQuote($unitType, $amount, $rentalPeriod);
// Display the quote for the desired energy amount and rental period
echo "Quote for renting {$amount} units for {$rentalPeriod} time unit(s): {$quote} TRX.\n";
// Proceed to rent the desired energy amount
$this->rentEnergy($address, $unitType, $amount, $affiliate, $rentalPeriod);
// Confirm that the energy has been rented
echo "Successfully rented energy!\n";
} else {
// If not enough energy is available, display an error message
echo "Not enough energy available for rent.\n";
}
}
/**
* Get a quote for renting energy.
*
* This function retrieves the expected cost for renting a specific amount of energy
* over a given period.
*
* @param int $unitType The type of unit. 1 is the default.
* @param int $amount The amount of energy to rent.
* @param int $rentalPeriod The length of the rental period in hours or days, based on unitType.
* @return int The expected cost in TRX for renting the desired amount of energy.
*/
public function getQuote($unitType = 1, $amount, $rentalPeriod) {
try {
// Parameters for the calculatePrice method in the smart contract
$params = [$unitType, $amount, $rentalPeriod];
// Fetch the cost from the smart contract
$cost = $this->readTransaction("calculatePrice", $params)["total"]->value;
error_log("INFO: Successfully fetched quote for renting energy. Expected cost: {$cost}");
return $cost;
} catch (Exception $e) {
error_log("ERROR: Error while fetching quote for renting energy. Error: " . $e->getMessage());
return false;
}
}
}
?>That is everything you need to rent energy from TronNRG using PHP, If you have any questions or require support you can join our Telegram group and a member of the team will be happy to help you.