PHP code example of crystaldaking / finance-core

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

crystaldaking / finance-core example snippets

use Crystal\Finance\Core\Money\AssetRegistry;
use Crystal\Finance\Core\Money\Money;
use Crystal\Finance\Core\Money\Percentage;
use Crystal\Finance\Core\Money\RoundingMode;

$registry = AssetRegistry::default();

$amount = Money::of('100.00', 'EUR', $registry);
$fee = $amount->percentage(Percentage::of('2.5'), RoundingMode::HalfUp);
$total = $amount->plus($fee);

$usdtTron = Money::of('10.000000', 'USDT@TRON', $registry);
$usdtEthereum = Money::of('10.000000', 'USDT@ETHEREUM', $registry);

use Crystal\Finance\Core\Fee\FeeCalculator;
use Crystal\Finance\Core\Fee\FeeContext;
use Crystal\Finance\Core\Fee\FeeRule;
use Crystal\Finance\Core\Money\Money;
use Crystal\Finance\Core\Money\Percentage;

$rule = FeeRule::make()
    ->percent(Percentage::of('2.5'), label: 'service_fee')
    ->fixed(Money::of('0.30', 'EUR', $registry), label: 'fixed_charge')
    ->min(Money::of('1.00', 'EUR', $registry))
    ->max(Money::of('50.00', 'EUR', $registry));

$result = (new FeeCalculator())->calculate(
    Money::of('100.00', 'EUR', $registry),
    $rule,
    FeeContext::make('invoice_collection', ['customer' => 'customer_123']),
);

$result->gross();      // 100.00 EUR
$result->totalFee();   // 2.80 EUR
$result->net();        // 97.20 EUR
$result->breakdown();  // explainable fee lines

use Crystal\Finance\Core\Ledger\LedgerAccountId;
use Crystal\Finance\Core\Ledger\LedgerReference;
use Crystal\Finance\Core\Ledger\LedgerTransaction;
use Crystal\Finance\Core\Ledger\LedgerTransactionType;
use Crystal\Finance\Core\Ledger\LedgerValidator;
use Crystal\Finance\Core\Money\Money;

$transaction = LedgerTransaction::make(
    LedgerTransactionType::Transfer,
    LedgerReference::manual('transfer_123'),
)
    ->debit(
        LedgerAccountId::fromString('cash:main'),
        Money::of('100.00', 'EUR', $registry),
    )
    ->credit(
        LedgerAccountId::fromString('equity:owner'),
        Money::of('100.00', 'EUR', $registry),
    );

(new LedgerValidator())->assertValid($transaction);

use Crystal\Finance\Core\Idempotency\IdempotencyKey;
use Crystal\Finance\Core\Idempotency\IdempotencyScope;
use Crystal\Finance\Core\Idempotency\PayloadFingerprint;

$scope = IdempotencyScope::fromString('ledger:append');
$key = IdempotencyKey::fromString('request_12345678');
$fingerprint = PayloadFingerprint::fromArray([
    'reference' => 'transfer_123',
    'amount' => '100.00',
    'asset' => 'EUR',
]);