How to make GET request in wordpress ?

In WordPress, you can make a GET request using the wp_remote_get() function. This function is a wrapper for the cURL library and allows you to send GET requests to a specified URL.

Here is an example of how you can use the wp_remote_get() function to make a GET request:

$response = wp_remote_get( ‘https://example.com' );
if ( is_wp_error( $response ) ) {
// handle error
} else {
$data = json_decode( wp_remote_retrieve_body( $response ) );
// do something with data
}

In this example, the wp_remote_get() function is used to send a GET request to the URL "https://example.com". The response is then stored in the $response variable. If the response is an error, the is_wp_error() function is used to check for it and handle it. If the response is successful, the json_decode() function is used to parse the JSON data that is returned in the response body.

You can also pass an array of arguments as a second parameter to the wp_remote_get() function to customize the request, like headers, body, timeout, redirects, http version etc.

$response = wp_remote_get( 'https://example.com', array(
    'headers' => array(
        'Accept-Language' => 'en-US'
    ),
    'timeout' => 30,
    'redirection' => 5,
    'httpversion' => '1.1',
    'sslverify' => false
));

Please be aware that, wordpress also have a nonce security mechanism to prevent CSRF attacks, you may need to verify the nonce before making a GET request.