fadion / fixerio
Wrapper for Fixer.io
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Requires
- php: >=5.4.0
- guzzlehttp/guzzle: ~6.0
Requires (Dev)
- mockery/mockery: dev-master
- phpunit/phpunit: 4.8.*
README
A thin wrapper for Fixer.io, a service for foreign exchange rates and currency conversion. It provides a few methods to easily construct the url, makes the api call and gives back the response.
Installation
- Add the package to your composer.json file and run
composer update
:
{ "require": { "fadion/fixerio": "~1.0" } }
Laravel users can use the Facade for even easier access.
- Add
Fadion\Fixerio\ExchangeServiceProvider::class
to yourconfig/app.php
file, inside theproviders
array. - Add a new alias:
'Exchange' => Fadion\Fixerio\Facades\Exchange::class
to yourconfig/app.php
file, inside thealiases
array.
Usage
Let's get the rates of EUR and GBP with USD as the base currency:
use Fadion\Fixerio\Exchange; use Fadion\Fixerio\Currency; $exchange = new Exchange(); $exchange->key("YOUR_ACCESS_KEY"); $exchange->base(Currency::USD); $exchange->symbols(Currency::EUR, Currency::GBP); $rates = $exchange->get();
By default, the base currency is EUR
, so if that's your base, there's no need to set it. The symbols can be omitted too, as Fixer will return all the supported currencies.
A simplified example without the base and currency:
$rates = (new Exchange())->key("YOUR_ACCESS_KEY")->get();
The historical
option will return currency rates for every day since the date you've specified. The base currency and symbols can be omitted here to, but let's see a full example:
$exchange = new Exchange(); $exchange->key("YOUR_ACCESS_KEY"); $exchange->historical('2012-12-12'); $exchange->base(Currency::AUD); $exchange->symbols(Currency::USD, Currency::EUR, Currency::GBP); $rates = $exchange->get();
Finally, you may have noticed the use of the Currency
class with currencies as constants. It's just a convenience to prevent errors from typos, but they're completely optional.
This:
$exchange->base(Currency::AUD); $exchange->symbols(Currency::USD, Currency::EUR, Currency::GBP);
is equivalent to:
$exchange->base('AUD'); $exchange->symbols('USD', 'EUR', 'GBP');
Use whatever method fills your needs.
Response
The response is a simple array with currencies as keys and ratios as values. For a request like the following:
$rates = (new Exchange())->key("YOUR_ACCESS_KEY")->symbols(Currency::USD, Currency::GBP)->get();
the response will be an array:
array('GBP' => 0.7009, 'USD' => 1.0666)
which you can access with the keys as strings or using the currency constants:
print $rates['EUR']; print $rates[Currency::GBP];
There is an option to handle the response as an object:
$rates = (new Exchange())->key("YOUR_ACCESS_KEY")->symbols(Currency::USD, Currency::GBP)->getAsObject(); print $rates->USD; print $rates->GBP;
The last option is to return the response as a Result
class. This allows access to the full set of properties returned from the feed.
$result = (new Exchange())->key("YOUR_ACCESS_KEY")->symbols(Currency::USD, Currency::GBP)->getResult(); $date = $result->getDate(); // The date the data is from $rates = $result->getRates(); // Array of rates as above $usd = $result->getRate(Currency::USD); // Will return null if there was no value
Error Handling
To handle errors, the package provides 2 exceptions. ConnectionException
when http requests go wrong and ResponseException
when the returned response from the api is not as expected. An example with exception handling:
use Fadion\Fixerio\Exchange; use Fadion\Fixerio\Exceptions\ConnectionException; use Fadion\Fixerio\Exceptions\ResponseException; try { $exchange = new Exchange(); $exchange->key("YOUR_ACCESS_KEY"); $rates = $exchange->get(); } catch (ConnectionException $e) { // handle } catch (ResponseException $e) { // handle }
Laravel Usage
Nothing changes for Laravel apart from the Facade. It's just a convenience for a tad shorter way of using the package:
use Exchange; use Fadion\Fixerio\Currency; $rates = Exchange::base(Currency::USD)->get();
To use this Facade, you should set your access key in your config/services.php
file:
'fixer'=>[ 'key'=>env("FIXER_ACCESS_KEY"), ]