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

Introduction

Hey there, fellow developer! Ready to dive into the world of Squarespace API integration? Whether you're looking to automate content updates, sync data with external systems, or build custom e-commerce solutions, the Squarespace API has got you covered. In this guide, we'll walk through the process of building a robust PHP integration that'll have you manipulating Squarespace data like a pro in no time.

Prerequisites

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

• A PHP environment set up (I'm assuming you're already rocking this)
• A Squarespace developer account (if you don't have one, go grab it!)
• Your shiny API key (you'll need this for authentication)

Got all that? Great! Let's get our hands dirty.

Setting up the project

First things first, let's get our project structure in order:

composer init
composer require guzzlehttp/guzzle

We're using Guzzle here because, let's face it, it makes HTTP requests a breeze.

Authentication

Squarespace uses OAuth 2.0, so let's implement that:

<?php
use GuzzleHttp\Client;

$client = new Client();
$response = $client->post('https://api.squarespace.com/1.0/oauth2/token', [
    'form_params' => [
        'grant_type' => 'authorization_code',
        'code' => 'YOUR_AUTH_CODE',
        'client_id' => 'YOUR_CLIENT_ID',
        'client_secret' => 'YOUR_CLIENT_SECRET',
    ]
]);

$token = json_decode($response->getBody(), true)['access_token'];

Pro tip: Store that token securely. You'll need it for all your API calls.

Making API requests

Now that we're authenticated, let's make a simple GET request:

$response = $client->get('https://api.squarespace.com/1.0/commerce/orders', [
    'headers' => [
        'Authorization' => 'Bearer ' . $token,
    ]
]);

$orders = json_decode($response->getBody(), true);

Easy peasy, right?

CRUD operations

Let's run through a quick example of each CRUD operation:

Create

$response = $client->post('https://api.squarespace.com/1.0/commerce/products', [
    'headers' => [
        'Authorization' => 'Bearer ' . $token,
        'Content-Type' => 'application/json',
    ],
    'json' => [
        'type' => 'PHYSICAL',
        'name' => 'Awesome Product',
        'description' => 'This product is seriously awesome',
    ],
]);

Read

$response = $client->get('https://api.squarespace.com/1.0/commerce/products/PRODUCT_ID', [
    'headers' => [
        'Authorization' => 'Bearer ' . $token,
    ],
]);

Update

$response = $client->put('https://api.squarespace.com/1.0/commerce/products/PRODUCT_ID', [
    'headers' => [
        'Authorization' => 'Bearer ' . $token,
        'Content-Type' => 'application/json',
    ],
    'json' => [
        'name' => 'Even More Awesome Product',
    ],
]);

Delete

$response = $client->delete('https://api.squarespace.com/1.0/commerce/products/PRODUCT_ID', [
    'headers' => [
        'Authorization' => 'Bearer ' . $token,
    ],
]);

Error handling and rate limiting

Don't forget to wrap your API calls in try-catch blocks:

try {
    $response = $client->get('https://api.squarespace.com/1.0/commerce/orders', [
        'headers' => [
            'Authorization' => 'Bearer ' . $token,
        ]
    ]);
} catch (\GuzzleHttp\Exception\ClientException $e) {
    // Handle client errors (4xx)
    echo $e->getMessage();
} catch (\GuzzleHttp\Exception\ServerException $e) {
    // Handle server errors (5xx)
    echo $e->getMessage();
}

And remember, Squarespace has rate limits. Be a good API citizen and respect them!

Webhooks integration

Setting up webhooks is crucial for real-time updates. Here's a basic endpoint:

<?php
$payload = file_get_contents('php://input');
$event = json_decode($payload, true);

if ($event['type'] === 'order.create') {
    // Handle new order
    processNewOrder($event['data']);
}

Testing and debugging

Always test your API calls. PHPUnit is your friend here:

public function testGetOrders()
{
    $client = $this->createMock(Client::class);
    $client->expects($this->once())
           ->method('get')
           ->willReturn(new Response(200, [], json_encode(['orders' => []])));
    
    $api = new SquarespaceApi($client);
    $orders = $api->getOrders();
    
    $this->assertIsArray($orders);
}

Best practices and optimization

• Cache responses when possible to reduce API calls
• Use pagination for large datasets
• Implement exponential backoff for rate limit handling

Conclusion

And there you have it! You're now equipped to build a robust Squarespace API integration in PHP. Remember, the official Squarespace API docs are your best friend for detailed endpoint information and best practices.

Now go forth and build something awesome! And if you run into any snags, don't hesitate to dive into the Squarespace developer forums. Happy coding!