Building a WordPress Plugin with Amadeus APIs: Part 2

				
					function get_flight_offers() {
  Requests::register_autoloader();
  $url = 'https://test.api.amadeus.com/v1/security/oauth2/token';
  $options = get_option( 'amadeus_api_options' ); 
  $auth_data = array();
  $auth_data[ 'client_id' ] = $options[ 'api_key_text_field_0' ];
  $auth_data[ 'client_secret' ] = $options[ 'api_secret_text_field_1' ];
  $auth_data[ 'grant_type' ] = 'client_credentials';
  $headers = array( 'Content-Type' => 'application/x-www-form-urlencoded' );
try {
  $requests_response = Requests::post( $url, $headers, $auth_data );
  $response_body = json_decode( $requests_response->body );
  if ( property_exists($response_body, 'error') ) {
    die( '
' . ( $response_body -> error_description ) . '.

' ); } $access_token = $response_body->access_token; } catch (Exception $e) { die( '

' . ( $e -> getMessage() ) . '.

' ); } if ( isset( $access_token ) ) { $endpoint = 'https://test.api.amadeus.com/v2/shopping/flight-offers'; $travel_data = array( 'originLocationCode' => sanitize_text_field( $_POST["originLocationCode"] ), 'destinationLocationCode' => sanitize_text_field( $_POST["destinationLocationCode"] ), 'departureDate' => sanitize_text_field( $_POST["departureDate"] ), 'adults' => sanitize_text_field( $_POST["adults"] ), ); if ( $_POST["returnDate"] !== '' ) { $travel_data['returnDate'] = sanitize_text_field( $_POST["returnDate"] ); } $params = http_build_query( $travel_data ); $url = $endpoint.'?'.$params; $headers = array( 'Authorization' => 'Bearer '.$access_token ); $options = array( 'timeout' => 10, ); try { $requests_response = Requests::get( $url, $headers, $options ); $response_body = json_decode( $requests_response->body ); if ( property_exists($response_body, 'error') ) { die( '

' . ( $response_body -> error_description ) . '.

' ); } echo json_encode($requests_response->body); } catch ( Exception $e ) { die( '

' . ( $e -> getMessage() ) . '.

' ); } } wp_die(); }