[insert_php]
public static function calculate_signature( $string, $private_key ) {
$hash = hash_hmac( 'sha1', $string, $private_key, true );
$sig = rawurlencode( base64_encode( $hash ) );
return $sig;
}
$base_url = 'http://localhost/wpdev/gravityformsapi/';
$api_key = 'your_api_key';
$private_key = 'your_private_key';
$method = 'GET';
$route = 'forms/28/entries';
$expires = strtotime( '+60 mins' );
$string_to_sign = sprintf( '%s:%s:%s:%s', $api_key, $method, $route, $expires );
$sig = self::calculate_signature( $string_to_sign, $private_key );
$url = $base_url . $route . '?api_key=' . $api_key . '&signature=' . $sig . '&expires=' . $expires;
$response = wp_remote_request( $url, array('method' => 'GET' ) );
if ( wp_remote_retrieve_response_code( $response ) != 200 || ( empty( wp_remote_retrieve_body( $response ) ) ) ){
//http request failed
echo 'There was an error attempting to access the API.';
die();
}
$body_json = wp_remote_retrieve_body( $response );
//results are in the "body" and are json encoded, decode them and put into an array
$body = json_decode( $body_json, true );
$data = $body['response'];
$status_code = $body['status'];
$total = 0;
$total_retrieved = 0;
if ( $status_code <= 202 ){
//entries retrieved successfully
$entries = $data['entries'];
$status = $status_code;
$total = $data['total_count'];
$total_retrieved = count( $entries );
}
else {
//entry retrieval failed, get error information
$error_code = $data['code'];
$error_message = $data['message'];
$error_data = isset( $data['data'] ) ? $data['data'] : '';
$status = $status_code . ' - ' . $error_code . ' ' . $error_message . ' ' . $error_data;
}
//display results in a simple page
?>
<html>
<body>
<form>
<p>Results</p>
<div>Status Code: <?php echo $status ?></div>
<div>Total Count: <?php echo $total; ?></div>
<div>Total Retrieved: <?php echo $total_retrieved; ?></div>
<div>JSON Response:<br/><textarea style="vertical-align: top" cols="125" rows="10"> <?php echo $response['body']; ?></textarea></div>
<br/>
<div>
<?php
if ( $total_retrieved > 0 ) {
echo '<table border="1"><th>Form ID</th><th>Entry ID</th><th>Date Created</th>';
foreach ( $entries as $entry ){
echo '<tr><td>' . $entry['form_id'] . '</td><td>' . $entry['id'] . '</td><td>' . $entry['date_created'] . '</td></tr>';
}
echo '</table>';
}
?>
</div>
</form>
</body>
</html>
[/insert_php]
