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I am trying to write a simple plugin that fetches some data from an API endpoint. I am planning to read the api key from a shortcode, but didn't get that far yet.

I wrote the following piece of code. The noob question I have is how do I even trigger the code so that I could debug it to see what happens ?

If that's a simple question, the follow up would be how to read the api key from a shortcode?

class DATA_PARSING
{

private static $instance;

/**
 * Initializes the plugin and read some data
 *
 * @access private
 */
private function __construct()
{
    add_action('data', [$this, 'fetchData']);
}

/**
 * Creates an instance of this class
 *
 * @access public
 * @return DATA_PARSING    An instance of this class
 */
public function get_instance()
{
    if (null == self::$instance) {
        self::$instance = new self;
    }

    return self::$instance;
}

private function fetchData($apiKey)
{
    $url = 'https://api.website.com/data';
    $args = [
        'id' => 1234,
        'fields' => '*'
    ];
    $method = 'GET';
    $headers = array(
        'Authorization' => 'Bearer ' . $apiKey,
        'Accept' => 'application/vnd.website.v1+json',
        'content-type' => 'application/json',
    );
    $request = array(
        'headers' => $headers,
        'method' => $method,
    );

    if ($method == 'GET' && !empty($args) && is_array($args)) {
        $url = add_query_arg($args, $url);
    } else {
        $request['body'] = json_encode($args);
    }

    $response = wp_remote_request($url, $request);

    try {
        $json = json_decode($response['body']);
    } catch (Exception $e) {
        $json = null;
    }

    return $json;

}
}
0

you can call the function by putting this code in a template.

echo fetchData('YOUR_API_HERE');

you should change your first line from:

if you're looking to turn it into a shortcode add this line:

add_shortcode( 'fetch-short', 'fetchData'); 

either right above or below your function.

then change your function start to this:

function fetchData( $atts ) {
    $api = {$atts['api']}";  //this is your new api variable

your shortcode would be

[fetch-short api="YOUR_API"]

be careful to add checks for incase you someone doesn't add an api though. as in set a default or error check if $api is empty.

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