/* WP LOG HTTP REQUESTS */
 function wp_log_http_requests( $response, $args, $url ) {

// set your log file location here
 $logfile = plugin_dir_path( __FILE__ ) . '/http_requests.log';

 // parse request and response body to a hash for human readable log output
 $log_response = $response;
 if ( isset( $args['body'] ) ) {
 parse_str( $args['body'], $args['body_parsed'] );
 }

 if ( isset( $log_response['body'] ) ) {
 parse_str( $log_response['body'], $log_response['body_parsed'] );
 }

 // write into logfile
  file_put_contents( $logfile, sprintf( "### %s, URL: %s\nREQUEST: %sRESPONSE: %s\n", date( 'c' ), $url, print_r( $args, true ), print_r( $log_response, true ) ), FILE_APPEND );
  return $response;
 }

 // hook into WP_Http::_dispatch_request()
 add_filter( 'http_response', 'wp_log_http_requests', 10, 3 );
 /* WP LOG HTTP REQUESTS */