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Log WPGraphQL requests to error log

WP Admin

This snippet logs all WPGraphQL requests to the error log

add_action( 'do_graphql_request', function( $query, $operation, $variables, $params) {
	error_log( wp_json_encode( [
		'query' => $query,
		'operation' => $operation,
		'variables' => $variables,
		'params' => $params
	] ) );
}, 10, 4 );