⚡🌐⚡ Modules to limit query cost by restricting maximum depth or number of nodes.

Install package using composer

composer require infinityloop-dev/graphpinator-query-cost

This package includes two modules. They can be used together or each on their own.

• MaxDepthModule validates maximum depth of a query.
• MaxNodesModule validates that size of a query does not exceed maximum number of nodes.
  • One node is essentially a single value which is to be resolved.
  • This module automatically recognises "multiplier" arguments, such as limit, which multiply inner number of nodes for that field.
    • Default multiplier arguments are ['limit', 'first', 'last'], but can be changed using second constructor argument.
    • If you wish to disable this feature, set the constructor argument to empty array.

1. Register selected modules to GraPHPinator:

$depthModule = new \Graphpinator\QueryCost\MaxDepthModule( 10, // selected maximum depth ); $nodesModule = new \Graphpinator\QueryCost\MaxNodesModule( 10000, // selected number of nodes ['limit'], // optional: multiplier argument names ); $graphpinator = new \Graphpinator\Graphpinator( $schema, $catchExceptions, new \Graphpinator\Module\ModuleSet([$depthModule, $nodesModule /* possibly other modules */]), $logger, );

2. You are all set, queries are validated for maximum depth/maximum number of nodes.