PHP get value from class without modifying existing class

Question

I am using the following Coinbase PHP api:

The class file includes the following line:

 * An array of API endpoints
 */
 public $endpoints = array(
 'book' => array('method' => 'GET', 'uri' => '/products/%s/book'),
 );

 public function getOrderBook($product = 'BTC-EUR') {
 //$this->validate('product', $product);
 return $this->request('book', array('id' => $product));
 }

In my file I call it using:

$exchange = new CoinbaseExchange();//Connect to Coinbase API
$getOrderbook = $exchange->getOrderBook();
print_r($getOrderbook);

Nothing is returned.

Though if I modify the class from:

'book' => array('method' => 'GET', 'uri' => '/products/%s/book'),

To:

'book' => array('method' => 'GET', 'uri' => '/products/%s/book?level=2'),

I get the desired out put in my file.

How can I leave the class as 'book' => array('method' => 'GET', 'uri' => '/products/%s/book'), as it is calling it through $getOrderbook = $exchange->getOrderBook();. Where do I include 'level=2` in the latter line please?

kamal pal · Accepted Answer · 2016-05-13 10:39:12Z

1

As the property $endpoints is public, you can access it from outside of class (see below):

$exchange = new CoinbaseExchange();//Connect to Coinbase API
$exchange->endpoints = array('book' => array('method' => 'GET', 'uri' => '/products/%s/book?level=2'))
$getOrderbook = $exchange->getOrderBook();
print_r($getOrderbook);

answered May 13, 2016 at 10:39

kamal pal

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4 Comments

Justinas Over a year ago

You are replacing all endpoints and calling some other method may lead to error.

kamal pal Over a year ago

I have just tried to show that op can update $endpoint outside of class (I don't think it will lead to error). however op can only update the uri part, as you shown in your answer

user6043723 Over a year ago

I thought I could do something similar to this $getOrderbook = $exchange->getOrderBook([level=2);` but it didn't work

kamal pal Over a year ago

no that won't work, as it is not suppose to take endpoint as parameter

Justinas · Accepted Answer · 2016-05-13 10:43:18Z

0

You can make temporary changes to endpoint:

$oldEndpoint= $exchange->endpoints['book']; // save previous value
$exchange->endpoints['book']['uri'] .= '?level=2'; // make needed changes
$exchange->getOrderBook();
$exchange->endpoints['book'] = $oldEndpoint; // reset to old value

answered May 13, 2016 at 10:43

Justinas

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