JaverInfluxDBBundle

This bundle integrates the InfluxDB Object Document Mapper (ODM) library into Symfony so that you can persist and retrieve objects to and from InfluxDB.

Compatibility

The current version of this bundle has the following requirements:

• InfluxDB 1.x
• PHP 8.1+
• Symfony 5.4+

Installation

Make sure Composer is installed globally, as explained in the installation chapter of the Composer documentation.

Applications that use Symfony Flex

Open a command console, enter your project directory and execute:

$ composer require javer/influxdb-odm-bundle

Applications that don't use Symfony Flex

Step 1: Download the Bundle

Open a command console, enter your project directory and execute the following command to download the latest stable version of this bundle:

$ composer require javer/influxdb-odm-bundle

Step 2: Enable the Bundle

Then, enable the bundle by adding it to the list of registered bundles in the config/bundles.php file of your project:

// config/bundles.php

return [
    // ...
    Javer\InfluxDB\Bundle\JaverInfluxDBBundle::class => ['all' => true],
];

Configuration

# config/packages/javer_influx_db.yaml
javer_influx_db:
    url: '%env(INFLUXDB_URL)%'
    mapping_dir: '%kernel.project_dir%/src/Measurement'
    mapping_type: attribute

To be able to use annotations, you will have to install an extra package called doctrine/annotations.

# .env
INFLUXDB_URL=influxdb://localhost:8086/metrics

Mapping Configuration

Explicit definition of all the mapped measurements is the only necessary configuration for the ODM. The following configuration options exist for a mapping:

• mapping_dir - Path to the measurement files

To avoid having to configure lots of information for your mappings you should put all your measurement in a directory Measurement/ inside your project. For example src/Measurement/.

Custom Types

Custom types can come in handy when you're missing a specific mapping type or when you want to replace the existing implementation of a mapping type for your measurements.

# config/packages/javer_influx_db.yaml
javer_influx_db:
    types:
        custom_type: Fully\Qualified\Class\Name

Usage

Refer to the influxdb-odm library documentation about declaring, creating, updating and removing measurements.

MeasurementManager

Inject Javer\InfluxDB\ODM\MeasurementManager to any service which needs ability to create, update or remove measurements:

use App\Measurement\CpuLoad;
use Javer\InfluxDB\ODM\MeasurementManager;

public function demoAction(MeasurementManager $measurementManager)
{
    $now = new DateTime();

    // Create
    $cpuLoad = new CpuLoad();
    $cpuLoad->setTime($now);
    $cpuLoad->setServerId(42);
    $cpuLoad->setCoreNumber(0);
    $cpuLoad->setLoad(3.14);
    $measurementManager->persist($cpuLoad);

    // Fetch
    $cpuLoad = $measurementManager->getRepository(CpuLoad::class)->find($now);

    // Update
    $cpuLoad->setLoad(2.54);
    $measurementManager->persist($cpuLoad);

    // Remove
    $measurementManager->remove($cpuLoad);
}

Service Repositories

This bundle adds another way of obtaining a repository instance: use the repository as a service and inject it as a dependency into other services.

// src/Repository/CpuLoadRepository.php
namespace App\Repository;

use App\Measurement\CpuLoad;
use Javer\InfluxDB\Bundle\Repository\ServiceMeasurementRepository;
use Javer\InfluxDB\ODM\MeasurementManager;

/**
 * Remember to map this repository in the corresponding measurement repositoryClass.
 */
class CpuLoadRepository extends ServiceMeasurementRepository
{
    public function __construct(MeasurementManager $measurementManager)
    {
        parent::__construct($measurementManager, CpuLoad::class);
    }
}

The ServiceMeasurementRepository class your custom repository is extending allows you to leverage Symfony's autowiring and autoconfiguration. To register all of your repositories as services you can use the following service configuration:

# config/services.yaml
services:
    _defaults:
        autowire: true
        autoconfigure: true

    App\Repository\:
        resource: '../src/Repository/*'

Symfony Profiler Data Collector

This bundle adds a new icon to the Symfony Profiler Toolbar and a new Symfony Profiler Page to enable you to monitor all queries and writes to InfluxDB. It is enabled by default only in development environment.