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File: README.md
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Class: PHP KairosDB Client
Connect and execute queries on KairosDB
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Date: 6 years ago
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KairosDB Client Build Status

Description

A client library for KairosDB written in PHP. This package provides convenience functions to read and write time series data. It uses the HTTP protocol to communicate with your KairosDB cluster.

Getting Started

Install (Composer)

$ composer require 'danibrutal/kairosdb-client:dev-master'

Connecting To Your Database

Connecting to an KairosDB database is straightforward. You will need a host name a port. The default port is 8080.

For more information please check out the KairosDB Docs.

Inserting Data

We can add a single data point:

require 'vendor/autoload.php';

$client = new KairosDB\Client('localhost', 8090);
$tags = ['host'=> 'precise64'];
$metricName = 'network_out';

for($i=2; $i<100; $i++) {
    $dataPointValue = $i *2;
    $client->addDataPoint($metricName, $dataPointValue, $tags);
    usleep(100);
}

Or using batch inserts:

require 'vendor/autoload.php';

$client = new \KairosDB\Client('localhost', 8090);
$tags = ['host'=> 'precise64'];
$metricName = 'network_out';

$dataPointCollection = new \KairosDB\DataPointCollection($metricName, $tags);

for($i=2; $i<100; $i++) {
    $dataPointValue = $i *2;    
    $dataPointCollection->addPoint($dataPointValue);
    usleep(100);
}

$client->addDataPoints($dataPointCollection);

Querying Data Points

The start date is required, but the end date defaults to NOW if not specified. The metric(s) that you are querying for is also required. Optionally, tags may be added to narrow down the search.

require 'vendor/autoload.php';

$client = new KairosDB\Client('localhost', 8090);

$queryBuilder = new \KairosDB\QueryBuilder();
$tags = ['host'=> 'precise64'];

$query = $queryBuilder
    ->start(['value'=> '1', 'unit' => 'days'])
    ->cache(10)
    ->addMetric('network_in')
    ->tags($tags)
    ->build();

$results = $client->query($query);

Querying Metric Names

You can get a list of all metric names in KairosDB.

require 'vendor/autoload.php';

$client = new KairosDB\Client('localhost', 8090);

$results = $client->getMetricNames($query);

Querying Tag Names

Similarly you can get a list of all tag names in KairosDB.

require 'vendor/autoload.php';

$client = new KairosDB\Client('localhost', 8090);

$results = $client->getTagNames($query);

Querying Tag Values

And a list of all tag values.

require 'vendor/autoload.php';

$client = new KairosDB\Client('localhost', 8090);

$results = $client->getTagValues($query);

Custom Data Types

TODO: implement

KairosDB Docs

Please refer to http://kairosdb.github.io/kairosdocs/ for documentation.

For more information send a message to info at phpclasses dot org.