PHP 7 - Google Analytics Reporting Api v4 wrapper

Table of Contents

• Installation
• Usage
• Limitations
• Testing
• Support
• License
• FAQ

Installation

Requirements:

• PHP ^7.0 (or higher)
• Composer ^1.9.0
• google/apiclient ^2.0
• doctrine/collections ^1.4

Installation Implementation in existing project with composer:

$ composer require sherin/google-analytics

Or you can start from scratch:

$ mkdir google-analytics-api
$ cd google-analytics-api
$ composer init
$ composer require sherin/google-analytics

Its not recommended/not supported to use this package without composer. It won't be documented.

Usage

This library is based on PHP 7.0 strict typing. Also we are using Doctrine's ArrayCollection because of the extra features.

All the libraries classes are wrapped inside the namespace: sherin\google\analytics\

Workflow:

1. Login to the Google api using the Client and Credentials classes.
2. Determine what data you want and build the query using the QueryBuilder.
3. If you have multiple queries, create a Batch object so the requests can be send in chunks of 5 (max allowed by Google).
4. Collect the response from Google, its possible to get JSON data or use the PHP objects.

Getting started

If you already know what Service Credentials are and you already own a json file, you can continue at step 2

1. First you need to obtain Service Credentials from Google from THIS link.

• Create a new project or use an existing project in the IAM and admin page.
• Then create a new Service Account and enter a name you want (for example WebsiteService or PHPService)
• Give the service account the role "Viewer" or "Owner". Depends if you will use other Google Libraries (you can use this key for almost all google api's)
• When you're on Step 3 click on the [+ create key] button and select the JSON type and click [create]. Now a JSON file will be downloaded and that's your credentials file that we need.
• After that, go to API's and services and open the Library. Search for "Google Analytics Reporting API" and enable the API for your account.
• For now its recommended to move the JSON array to your .env file because you should NEVER commit private keys to git. You can find an example here.

2. First we need to create a new Credentials class that contains your credentials. You can use the setters to setup your credentials or you can use the setFromArray function. The setFromArray function requires the following array setup:

$credentials = new Credentials();
$credentials->setFromArray($this->getGoogleCredentials());

And the getGoogleCredentials()function example:

private function getGoogleCredentials(): array
{
    return [  
        "type" => getenv("GOOGLE_TYPE"),  
        "project_id" => getenv("GOOGLE_TYPE"),  
        "private_key_id" => getenv('GOOGLE_PRIVATE_KEY_ID'),  
        "private_key" => str_replace('\n', PHP_EOL, getenv('GOOGLE_PRIVATE_KEY')),  //Dirty fix because older DotEnv versions does not support multi-lined variables. (since v3.0 but only supports php 7.2.
        "client_email" => getenv('GOOGLE_CLIENT_EMAIL'),  
        "client_id" => getenv('GOOGLE_CLIENT_ID'),  
        "auth_uri" => getenv("GOOGLE_AUTH_URI"),  
        "token_uri" => getenv("GOOGLE_TOKEN_URI"),  
        "auth_provider_x509_cert_url" => getenv("GOOGLE_AUTH_PROVIDER_CERT_URL"),  
        "client_x509_cert_url" => getenv('GOOGLE_CLIENT_CERT_URL')  
    ];
}

3. Now you have created the Credentials class with the required authentication tokens. Now we can start create a Client.

$client = new Client($credentials);

The following is only required if you already have a class called Client You might have a duplicate declaration Client (if you use Guzzle for example). So instead of importing (use) the class. Call it from the namespace.

$client = new \sherin\google\analytics\Authentication\Client($credentials);

4. And finally, we create a instance of the Analytics api class so we can create requests to Google. We need this instance later.

$analytics = new Analytics($client);

Or if you can't use/import the class, use the following:

$analytics = new \sherin\google\analytics\Analytics($client);

Limitations

The currently limitations:

1. This library only supports Service Applications (aka Server to Server) currently.
2. For now, a metric filter on a segment is not supported, only dimensions.

Testing

Testing is not added yet! FYI: PHPUnit will be used for unit testing

Support

You can use the issue tracker of this project to create issues. Use stackoverflow for supporting issues. The issue tracker is only for bugs reports and feature requests. (TODO ISSUE_TEMPLATE.md)

Licence

This project is licensed under the Apache License - see the LICENSE.md file for details