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GraPHPinator Persisted Queries

:zap::globe_with_meridians::zap: Module to persist validated query in cache and improve performace of repeating queries.

Introduction

This Module allows GraPHPinator to cache queries on the server to reduce server load. This module aims to reduce GraphQL overhead in parsing and validation by caching and reusing known requests.

Please note that this module does not affect the speed of your resolver functions.

Installation

Install package using composer

composer require infinityloop-dev/graphpinator-persisted-queries

How to use

1. Implement \Psr\SimpleCache\CacheInterface

You need implementation of \Psr\SimpleCache\CacheInterface where the serialized version of request is stored for later reuse.

2. Register PersistedQueriesModule as GraPHPinator module:

$persistModule = new \Graphpinator\PersistedQueriesModule\PersistedQueriesModule($schema, $cacheImpl);
$graphpinator = new \Graphpinator\Graphpinator(
    $schema,
    $catchExceptions,
    new \Graphpinator\Module\ModuleSet([$persistModule, /* possibly other modules */]),
    $logger,
);

3. You are all set, queries are automatically cached in specified storage.

Performance improvements

Simple benchmark (code in bench directory) shows approximatelly 80% reduction of GraphQL overhead.

Benchmark runs the same query 10k times, with 5 warmup queries before. Cache in use is a simple implementation using Redis on localhost, connection is done using php-redis extension. Opcache was disabled.