PHP code example of maciej-sz / nbp-php

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

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

    

maciej-sz / nbp-php example snippets

MaciejSz\Nbp\Service\CurrencyAverageRatesService;

$currencyAverages = CurrencyAverageRatesService::new();
$rate = $currencyAverages->fromDay('2023-01-02')->fromTable('A')->getRate('USD');

printf('%s rate is %d', $rate->getCurrencyCode(), $rate->getValue());

$averageRatesFromJanuary = $currencyAverages->fromMonth(2023, 1);

foreach ($averageRatesFromJanuary as $rate) {
    printf(
        '%s rate from %s is %F' . PHP_EOL,
        $rate->getCurrencyCode(),
        $rate->getEffectiveDate()->format('Y-m-d'),
        $rate->getValue()
    );
}

$eurRateFromApril4th = $currencyAverages
    ->fromDay('2023-04-04')
    ->fromTable('A')
    ->getRate('EUR');

echo $eurRateFromApril4th->getValue(); // 4.6785

$eurRateFromBeforeJanuary2nd = $currencyAverages
    ->fromDayBefore('2023-01-02')
    ->fromTable('A')
    ->getRate('EUR')
;

printf(
    '%s rate from %s is %F',
    $eurRateFromBeforeJanuary2nd->getCurrencyCode(),
    $eurRateFromBeforeJanuary2nd->getEffectiveDate()->format('Y-m-d'),
    $eurRateFromBeforeJanuary2nd->getValue()
);

$aTablesFromMarch = $currencyAverages->getMonthTablesA(2023, 3);

foreach ($aTablesFromMarch as $table) {
    foreach ($table->getRates() as $rate) {
        printf(
            '%s rate from table %s is %F' . PHP_EOL,
            $rate->getCurrencyCode(),
            $table->getNo(),
            $rate->getValue()
        );
    }
}

$aTablesFromMarch = $currencyAverages->getMonthTablesA(2023, 3);

foreach ($aTablesFromMarch as $table) {
    $chfRate = $table->getRate('CHF');
    printf(
        '%s rate from table %s is %F' . PHP_EOL,
        $chfRate->getCurrencyCode(),
        $table->getNo(),
        $chfRate->getValue()
    );
}

$bTablesFromMarch = $currencyAverages->getMonthTablesB(2022, 3);

foreach ($bTablesFromMarch as $table) {
    try {
        $rate = $table->getRate('MNT');
    } catch (CurrencyCodeNotFoundException $e) {
        continue;
    }
    printf(
        '%s rate from table %s is %F' . PHP_EOL,
        $rate->getCurrencyName(),
        $table->getNo(),
        $rate->getValue()
    );
}

$tradingRatesFromApril = $currencyTrading->fromMonth(2023, 4);

foreach ($tradingRatesFromApril as $rate) {
    printf(
        "%s rate from %s effective day traded on %s ask price is %s, bid price is %s\n",
        $rate->getCurrencyCode(),
        $rate->getEffectiveDate()->format('Y-m-d'),
        $rate->getTradingDate()->format('Y-m-d'),
        $rate->getAsk(),
        $rate->getBid()
    );
}

$gbpFromApril4th = $currencyTrading->fromEffectiveDay('2023-04-04')->getRate('GBP');

printf(
    '%s rate from %s effective day traded on %s ask price is %s, bid price is %s',
    $gbpFromApril4th->getCurrencyCode(),
    $gbpFromApril4th->getEffectiveDate()->format('Y-m-d'),
    $gbpFromApril4th->getTradingDate()->format('Y-m-d'),
    $gbpFromApril4th->getAsk(),
    $gbpFromApril4th->getBid()
);

$gbpFromApril4th = $currencyTrading->fromTradingDay('2023-04-04')->getRate('GBP');

printf(
    '%s rate from %s effective day traded on %s ask price is %s, bid price is %s',
    $gbpFromApril4th->getCurrencyCode(),
    $gbpFromApril4th->getEffectiveDate()->format('Y-m-d'),
    $gbpFromApril4th->getTradingDate()->format('Y-m-d'),
    $gbpFromApril4th->getAsk(),
    $gbpFromApril4th->getBid()
);

$jan2013rates = $goldRates->fromMonth(2013, 1);

foreach ($jan2013rates as $rate) {
    printf(
        'Gold rate from %s is %F' . PHP_EOL,
        $rate->getDate()->format('Y-m-d'),
        $rate->getValue()
    );
}

$goldRateFromJan2nd2014 = $goldRates->fromDay('2014-01-02');

printf(
    'Gold rate from %s is %F',
    $goldRateFromJan2nd2014->getDate()->format('Y-m-d'),
    $goldRateFromJan2nd2014->getValue()
);

$goldRateBeforeJan2nd = $goldRates->fromDayBefore('2014-01-02');

printf(
    'Gold rate from %s is %F',
    $goldRateBeforeJan2nd->getDate()->format('Y-m-d'),
    $goldRateBeforeJan2nd->getValue()
);

use Symfony\Component\Cache\Adapter\FilesystemAdapter as CachePoolAdapter;

// 1) create repository backed by caching transport
$cachePool = new CachePoolAdapter();
$cachingTransportFactory = CachingTransportFactory::new($cachePool);
$client = NbpWebClient::new(transportFactory: $cachingTransportFactory);
$nbpRepository = NbpWebRepository::new($client);

// 2) create needed services using cache-backed repository:
$goldRates = new GoldRatesService($nbpRepository);

// 3) run multiple times to check the effect of caching:
$start = microtime(true);
$goldRates->fromDayBefore('2013-05-15')->getValue();
$end = microtime(true);
$took = $end - $start;
printf('Getting the rate took %F ms', $took * 1000);

$customTransportFactory = new class() implements TransportFactory {
    public function create(string $baseUri): Transport
    {
        return new class() implements Transport {
            public function get(string $path): array
            {
                echo "Requesting resource: {$path}" . PHP_EOL;

                $ch = curl_init();
                $url = NbpWebClient::BASE_URL . $path;
                curl_setopt($ch, CURLOPT_URL, $url);
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
                try {
                    $output = curl_exec($ch);
                } finally {
                    curl_close($ch);
                }

                echo 'Request successful' . PHP_EOL;

                return json_decode($output, true);
            }
        };
    }
};

$client = NbpWebClient::new(transportFactory: $customTransportFactory);
$nbpRepository = NbpWebRepository::new($client);
$goldRates = GoldRatesService::new($nbpRepository);

$rate = $goldRates->fromDay('2022-01-03');

printf(
    'Gold rate from %s is %F',
    $rate->getDate()->format('Y-m-d'),
    $rate->getValue()
);

composer 

Requesting resource: /api/cenyzlota/2022-01-01/2022-01-31
Request successful
Gold rate from 2022-01-03 is 235.720000