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Use central banks of czechia, turkey and romania as a free provider for their currencies exchange rates
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This commit is contained in:
Jan Böhmer 2025-09-05 19:56:01 +02:00
parent d3e3c4e3f8
commit 0717239296
2 changed files with 21 additions and 10 deletions
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9
config/packages/swap.yaml
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@ -5,6 +5,9 @@ florianv_swap:
providers:
european_central_bank: ~ # European Central Bank (only works for EUR base currency)
fixer: # Fixer.io (needs an API key)
access_key: "%env(string:settings:exchange_rate:fixerApiKey)%"
#exchange_rates_api: ~
central_bank_of_czech_republic: ~
central_bank_of_republic_turkey: ~
national_bank_of_romania: ~
fixer: # Fixer.io (needs an API key)
access_key: "%env(string:settings:exchange_rate:fixerApiKey)%"

22
src/Services/Tools/ExchangeRateUpdater.php
View file

@ -26,6 +26,8 @@ use App\Entity\PriceInformations\Currency;
use App\Settings\SystemSettings\LocalizationSettings;
use Brick\Math\BigDecimal;
use Brick\Math\RoundingMode;
use Exchanger\Exception\UnsupportedCurrencyPairException;
use Exchanger\Exception\UnsupportedExchangeQueryException;
use Swap\Swap;
class ExchangeRateUpdater
@ -39,15 +41,21 @@ class ExchangeRateUpdater
*/
public function update(Currency $currency): Currency
{
//Currency pairs are always in the format "BASE/QUOTE"
$rate = $this->swap->latest($this->localizationSettings->baseCurrency.'/'.$currency->getIsoCode());
//The rate says how many quote units are worth one base unit
//So we need to invert it to get the exchange rate
try {
//Try it in the direction QUOTE/BASE first, as most providers provide rates in this direction
$rate = $this->swap->latest($currency->getIsoCode().'/'.$this->localizationSettings->baseCurrency);
$effective_rate = BigDecimal::of($rate->getValue());
} catch (UnsupportedCurrencyPairException|UnsupportedExchangeQueryException $exception) {
//Otherwise try to get it inverse and calculate it ourselfes, from the format "BASE/QUOTE"
$rate = $this->swap->latest($this->localizationSettings->baseCurrency.'/'.$currency->getIsoCode());
//The rate says how many quote units are worth one base unit
//So we need to invert it to get the exchange rate
$rate_bd = BigDecimal::of($rate->getValue());
$rate_inverted = BigDecimal::one()->dividedBy($rate_bd, Currency::PRICE_SCALE, RoundingMode::HALF_UP);
$rate_bd = BigDecimal::of($rate->getValue());
$effective_rate = BigDecimal::one()->dividedBy($rate_bd, Currency::PRICE_SCALE, RoundingMode::HALF_UP);
}
$currency->setExchangeRate($rate_inverted);
$currency->setExchangeRate($effective_rate);
return $currency;
}