/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
$url = sprintf(self::URL, $currencyPair->getBaseCurrency() . $currencyPair->getQuoteCurrency(), $this->token);
$content = $this->fetchContent($url);
$json = StringUtil::jsonToArray($content);
$data = $json[0];
if ('Success' === $data['Outcome']) {
$dateString = $data['Date'] . ' ' . $data['Time'];
return new Rate((string) $data['Bid'], \DateTime::createFromFormat('m/d/Y H:i:s A', $dateString, new \DateTimeZone('UTC')));
}
throw new Exception($data['Message']);
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair, $date = null)
{
$getAppend = function ($from, $to, $date = null) {
$date = isset($date) ? $date : 'latest';
return "{$date}?symbols={$to}&base={$from}";
};
$url = self::URL . $getAppend($currencyPair->getBaseCurrency(), $currencyPair->getQuoteCurrency(), $date);
$content = $this->fetchContent($url);
$return = StringUtil::jsonToArray($content);
$return['date'] = isset($date) ? new \DateTime($date) : new \DateTime();
return new Rate(current($return['rates']), $return['date']);
throw new UnsupportedCurrencyPairException($currencyPair);
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
$queryPairs = sprintf('"%s%s"', $currencyPair->getBaseCurrency(), $currencyPair->getQuoteCurrency());
$query = sprintf('select * from yahoo.finance.xchange where pair in (%s)', $queryPairs);
$url = sprintf(self::URL, urlencode($query));
$content = $this->fetchContent($url);
$json = StringUtil::jsonToArray($content);
$data = $json['query']['results']['rate'];
if ('0.00' === $data['Rate'] || 'N/A' === $data['Date']) {
throw new UnsupportedCurrencyPairException($currencyPair);
}
$dateString = $data['Date'] . ' ' . $data['Time'];
$date = \DateTime::createFromFormat('m/d/Y H:ia', $dateString);
return new Rate($data['Rate'], $date);
}
/**
* {@inheritdoc}
*/
public function fetchRate(CurrencyPair $currencyPair)
{
if (!$this->enterprise && 'USD' !== $currencyPair->getBaseCurrency()) {
throw new UnsupportedCurrencyPairException($currencyPair);
}
if ($this->enterprise) {
$url = sprintf(self::ENTERPRISE_URL, $this->appId, $currencyPair->getBaseCurrency(), $currencyPair->getQuoteCurrency());
} else {
$url = sprintf(self::FREE_URL, $this->appId);
}
$content = $this->fetchContent($url);
$data = StringUtil::jsonToArray($content);
if (isset($data['error'])) {
throw new Exception($data['description']);
}
$date = new \DateTime();
$date->setTimestamp($data['timestamp']);
if ($data['base'] === $currencyPair->getBaseCurrency() && isset($data['rates'][$currencyPair->getQuoteCurrency()])) {
return new Rate((string) $data['rates'][$currencyPair->getQuoteCurrency()], $date);
}
throw new UnsupportedCurrencyPairException($currencyPair);
}
/**
* @test
* @expectedException \RuntimeException
*/
function it_throws_an_exception_when_converting_invalid_json()
{
StringUtil::jsonToArray('/');
}
