Microsoft Graph SDK for PHP

A production-ready PHP SDK for Microsoft Graph API, automatically generated from OpenAPI specifications with strict type-safe DTOs and request builder architecture.

Features

• ✅ Request Builder Architecture - Fluent, chainable API calls
• ✅ Strict Type-Safe DTOs - Full property validation and type hints with array support
• ✅ Array-like Collections - CollectionResponse implements ArrayAccess, Countable, and IteratorAggregate
• ✅ PSR-7/PSR-18 Compliant - Standard HTTP client integration
• ✅ Multiple Authentication Methods - Bearer token and Client Credentials flow
• ✅ Auto-generated from OpenAPI - Always up-to-date with Microsoft Graph API
• ✅ Symfony Serializer - Robust request/response handling
• ✅ Interactive Tinker Shell - REPL for debugging and exploration

Installation

composer install

Generate SDK

Run the generator script to download the OpenAPI spec and generate the SDK:

php generate.php

This will:

1. Download the latest Microsoft Graph OpenAPI specification
2. Generate strict DTOs and models
3. Create request builder classes
4. Set up authentication providers
5. Format all code with PHP CS Fixer

Usage

Basic Setup with Bearer Token

<?php

use ApeDevDe\MicrosoftGraphSdk\GraphServiceClient;
use ApeDevDe\MicrosoftGraphSdk\Authentication\BearerTokenAuthenticationProvider;
use Symfony\Component\HttpClient\Psr18Client;
use Nyholm\Psr7\Factory\Psr17Factory;

// Create HTTP client and factories
$httpClient = new Psr18Client();
$psr17Factory = new Psr17Factory();

// Create authentication provider
$authProvider = new BearerTokenAuthenticationProvider('YOUR_ACCESS_TOKEN');

// Create Graph client
$graphClient = GraphServiceClient::create(
    $httpClient,
    $psr17Factory,
    $psr17Factory,
    $authProvider
);

// Use the SDK
$user = $graphClient->me()->get();
echo "Hello, " . $user->getDisplayName();

Client Credentials Flow

<?php

use ApeDevDe\MicrosoftGraphSdk\GraphServiceClient;
use ApeDevDe\MicrosoftGraphSdk\Authentication\ClientCredentialsAuthenticationProvider;
use Symfony\Component\HttpClient\Psr18Client;
use Nyholm\Psr7\Factory\Psr17Factory;

$httpClient = new Psr18Client();
$psr17Factory = new Psr17Factory();

$authProvider = new ClientCredentialsAuthenticationProvider(
    'YOUR_TENANT_ID',
    'YOUR_CLIENT_ID',
    'YOUR_CLIENT_SECRET',
    $httpClient,
    $psr17Factory,
    $psr17Factory
);

$graphClient = GraphServiceClient::create(
    $httpClient,
    $psr17Factory,
    $psr17Factory,
    $authProvider
);

Examples

Get Current User

$me = $graphClient->me()->get();
echo $me->getDisplayName();
echo $me->getMail();

List Users

$users = $graphClient->users()->get();

// Collections implement ArrayAccess, Countable, and IteratorAggregate
foreach ($users as $user) {
    echo $user->getDisplayName() . "\n";
}

// Or use traditional getValue()
foreach ($users->getValue() as $user) {
    echo $user->getDisplayName() . "\n";
}

Get Specific User

$user = $graphClient->users()->byId('user-id')->get();
echo $user->getDisplayName();

Create User

use ApeDevDe\MicrosoftGraphSdk\Models\User;

$newUser = new User();
$newUser->setDisplayName('John Doe');
$newUser->setUserPrincipalName('john.doe@contoso.com');
$newUser->setMailNickname('johndoe');
$newUser->setAccountEnabled(true);

$createdUser = $graphClient->users()->post($newUser);

Update User

$user = $graphClient->users()->byId('user-id')->get();
$user->setJobTitle('Senior Developer');

$updatedUser = $graphClient->users()->byId('user-id')->patch($user);

Delete User

$graphClient->users()->byId('user-id')->delete();

Get User's Messages

$messages = $graphClient->me()->messages()->get();

// Direct iteration
foreach ($messages as $message) {
    echo $message->getSubject() . "\n";
}

// Array-like access
echo $messages[0]->getSubject();  // First message
echo count($messages);  // Count messages

Query Parameters

// Select specific fields
$user = $graphClient->me()->get([
    '$select' => 'displayName,mail,jobTitle'
]);

// Filter users
$users = $graphClient->users()->get([
    '$filter' => "startsWith(displayName,'John')",
    '$top' => 10
]);

// Order by
$users = $graphClient->users()->get([
    '$orderby' => 'displayName'
]);

Collection Responses

All collection responses implement ArrayAccess, Countable, and IteratorAggregate for intuitive array-like behavior:

$users = $graphClient->users()->get();

// ArrayAccess - Access like an array
$firstUser = $users[0];
$secondUser = $users[1];

// Countable - Use count() directly
$count = count($users);

// IteratorAggregate - Direct iteration
foreach ($users as $user) {
    echo $user->getDisplayName() . "\n";
}

// Check existence
if (isset($users[0])) {
    echo "Has users!";
}

// Traditional method still works
$users->getValue();  // Returns array of User objects

Array Properties

Model properties that are arrays are properly typed with PHPDoc annotations:

$user = $graphClient->me()->get();

// businessPhones is typed as array with string[] PHPDoc
$phones = $user->getBusinessPhones();  // Returns: string[]

// All array properties work correctly
$licenses = $user->getAssignedLicenses();  // Returns: AssignedLicense[]
$addresses = $user->getProxyAddresses();  // Returns: string[]

Interactive Tinker Shell

Debug and explore the Graph API with the interactive REPL:

php tinker.php

Features:

• ✅ Arrow key history - Navigate previous commands with Up/Down
• ✅ Tab completion - Autocomplete commands
• ✅ Error handling - Errors don't crash the shell
• ✅ Keyboard shortcuts - Ctrl+D to exit, Ctrl+C to interrupt

Example session:

[1] > $users = $client->users()->get()
=> UserCollectionResponse { count: 42 }

[2] > $users[0]->getDisplayName()
=> "John Doe"

[3] > count($users)
=> 42

[4] > foreach ($users as $u) { echo $u->getDisplayName() . "\n"; }
John Doe
Jane Smith
...

Architecture

Request Builders

Request builders provide a fluent API for constructing Graph API requests:

GraphServiceClient
├── me() → MeRequestBuilder
│   ├── get()
│   ├── messages() → MessagesRequestBuilder
│   ├── mailFolders() → MailFoldersRequestBuilder
│   └── calendar() → CalendarRequestBuilder
├── users() → UsersRequestBuilder
│   ├── get()
│   ├── post()
│   ├── byId() → UserItemRequestBuilder
│   │   ├── get()
│   │   ├── patch()
│   │   ├── delete()
│   │   ├── messages()
│   │   └── mailFolders()
│   └── count()
├── groups() → GroupsRequestBuilder
└── applications() → ApplicationsRequestBuilder

DTOs and Models

All models are strictly typed PHP classes generated from the OpenAPI specification:

• Full property type hints
• Getters and setters for all properties
• Validation support
• Serialization/deserialization via Symfony Serializer

Authentication

Two authentication providers are included:

1. BearerTokenAuthenticationProvider - For pre-acquired access tokens
2. ClientCredentialsAuthenticationProvider - OAuth 2.0 client credentials flow with automatic token refresh

Requirements

• PHP 8.1 or higher
• PSR-7 HTTP Message implementation
• PSR-18 HTTP Client implementation
• Symfony Serializer

Development

Regenerate SDK

To regenerate the SDK with the latest OpenAPI specification:

php generate.php

Extend Request Builders

You can extend the generated request builders to add custom functionality:

namespace ApeDevDe\MicrosoftGraphSdk\RequestBuilders;

class CustomUsersRequestBuilder extends UsersRequestBuilder
{
    public function searchByDepartment(string $department): UserCollectionResponse
    {
        return $this->get([
            '$filter' => "department eq '{$department}'"
        ]);
    }
}

License

This SDK is auto-generated from Microsoft Graph OpenAPI specifications.

Author

Alexis Peters (info@alexispeters.de)