43 lines
848 B
PHP
43 lines
848 B
PHP
<?php
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namespace Modules\Currency\Services;
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use Swap\Swap;
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use Exchanger\Exception\Exception;
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class CurrencyRateExchanger
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{
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/**
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* Instance of swap.
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*
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* @var \Swap\Swap
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*/
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private $swap;
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/**
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* Create a new CurrencyRateExchanger instance.
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*
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* @param \Swap\Swap $swap
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*/
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public function __construct(Swap $swap)
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{
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$this->swap = $swap;
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}
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/**
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* Exchange to the latest currency rate.
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*
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* @param string $fromCurrency
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* @param string $toCurrency
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* @return float|null
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*/
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public function exchange($fromCurrency, $toCurrency)
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{
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try {
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return $this->swap->latest("{$fromCurrency}/{$toCurrency}")->getValue();
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} catch (Exception $e) {
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return 1;
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}
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}
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}
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