Step by Step Guide to Building a Lucidchart API Integration in PHP

Introduction

Hey there, fellow developer! Ready to dive into the world of Lucidchart API integration? You're in for a treat. We'll be walking through the process of building a robust PHP integration that'll have you manipulating diagrams like a pro. Let's get started!

Prerequisites

Before we jump in, make sure you've got:

• A PHP environment up and running (I know you've got this!)
• Lucidchart API credentials (grab these from your Lucidchart account)
• Your favorite HTTP client library (Guzzle, anyone?)

Authentication

First things first, let's get you authenticated:

$client = new GuzzleHttp\Client();
$response = $client->post('https://api.lucid.co/oauth2/token', [
    'form_params' => [
        'grant_type' => 'client_credentials',
        'client_id' => 'YOUR_CLIENT_ID',
        'client_secret' => 'YOUR_CLIENT_SECRET',
    ]
]);

$token = json_decode($response->getBody())->access_token;

Boom! You've got your access token. Keep it safe; you'll need it for all your API calls.

Basic API Requests

Now that you're authenticated, let's make some requests:

$client = new GuzzleHttp\Client([
    'base_uri' => 'https://api.lucid.co/v1/',
    'headers' => [
        'Authorization' => 'Bearer ' . $token,
        'Content-Type' => 'application/json',
    ]
]);

// GET request
$response = $client->get('documents');

// POST request
$response = $client->post('documents', [
    'json' => ['title' => 'My Awesome Diagram']
]);

Working with Documents

Let's get our hands dirty with some document manipulation:

// Get all documents
$documents = json_decode($client->get('documents')->getBody());

// Create a new document
$newDoc = json_decode($client->post('documents', [
    'json' => ['title' => 'API Created Diagram']
])->getBody());

// Update a document
$client->put('documents/' . $newDoc->id, [
    'json' => ['title' => 'Updated Diagram Title']
]);

// Delete a document
$client->delete('documents/' . $newDoc->id);

Managing Shapes and Pages

Time to add some flair to your diagrams:

// Add a shape
$shape = $client->post('documents/' . $docId . '/pages/' . $pageId . '/shapes', [
    'json' => [
        'type' => 'rectangle',
        'x' => 100,
        'y' => 100,
        'width' => 200,
        'height' => 100,
    ]
]);

// Modify shape properties
$client->put('documents/' . $docId . '/pages/' . $pageId . '/shapes/' . $shapeId, [
    'json' => [
        'fillColor' => '#FF0000',
    ]
]);

Collaboration Features

Sharing is caring, right? Let's get collaborative:

// Share a document
$client->post('documents/' . $docId . '/share', [
    'json' => [
        'email' => '[email protected]',
        'permission' => 'edit',
    ]
]);

Error Handling and Rate Limiting

Don't forget to handle those pesky errors and respect the API limits:

try {
    $response = $client->get('documents');
} catch (GuzzleHttp\Exception\ClientException $e) {
    $errorBody = json_decode($e->getResponse()->getBody());
    // Handle the error
}

// Implement exponential backoff for rate limiting
function makeRequest($client, $method, $uri, $options = []) {
    $attempts = 0;
    while ($attempts < 5) {
        try {
            return $client->$method($uri, $options);
        } catch (GuzzleHttp\Exception\ClientException $e) {
            if ($e->getResponse()->getStatusCode() == 429) {
                sleep(pow(2, $attempts));
                $attempts++;
            } else {
                throw $e;
            }
        }
    }
    throw new Exception('Max retries reached');
}

Advanced Features

Ready for some next-level stuff? Let's set up a webhook:

$client->post('webhooks', [
    'json' => [
        'event' => 'document.updated',
        'url' => 'https://your-app.com/webhook-endpoint',
    ]
]);

Testing and Debugging

Always test your code! Here's a quick unit test example:

public function testGetDocuments()
{
    $client = $this->createMock(GuzzleHttp\Client::class);
    $client->expects($this->once())
           ->method('get')
           ->with('documents')
           ->willReturn(new GuzzleHttp\Psr7\Response(200, [], json_encode(['documents' => []])));

    $api = new LucidchartApi($client);
    $documents = $api->getDocuments();

    $this->assertIsArray($documents);
}

Performance Optimization

Last but not least, let's optimize:

// Implement caching
$cache = new Symfony\Component\Cache\Adapter\FilesystemAdapter();

$cachedDocuments = $cache->get('documents', function(ItemInterface $item) use ($client) {
    $item->expiresAfter(3600);
    return json_decode($client->get('documents')->getBody());
});

Conclusion

And there you have it! You've just built a killer Lucidchart API integration in PHP. From authentication to advanced features, you're now equipped to create, manipulate, and collaborate on diagrams programmatically. Remember, the Lucidchart API documentation is your best friend for diving deeper into specific endpoints and features.

Now go forth and diagram like a boss! Happy coding!