Laravel DynamoDB Eloquent Models and Query Builder

Laravel DynamoDB is a DynamoDB-based Eloquent model and Query builder for Laravel. Using the provided Dynamo driver, models extend the Eloquent base model:

 1use Kitar\Dynamodb\Model\Model;
 2 
 3class ProductCatalog extends Model
 4{
 5    // Required
 6    protected $table = 'ProductCatalog';
 7 
 8    // Name of the partition key (required)
 9    protected $primaryKey = 'Id';
10 
11    // Name of the sort key (optional)
12    protected $sortKey = 'Subject';
13 
14    // Default sort key value when we
15    // call find without a sort key.
16    protected $sortKeyDefault = 'profile';
17 
18    protected $fillable = ['Id', 'Price', 'Title'];
19}

Here are a few examples from the readme of queries and operations you can expect using this package:

 1// Get all models
 2$products = ProductCatalog::scan();
 3// or
 4$products = ProductCatalog::all();
 5 
 6// Paginated
 7$products = ProductCatalog::limit(5)->scan();
 8 
 9// Creating a user
10$user = User::create([
11    'email' => 'foo@bar.com',
12    // Sort key. If we don't specify this,
13    // sortKeyDefault will be used.
14    'type' => 'profile',
15]);
16 
17// Instantiate a model and then save.
18$user = new User([
19    'email' => 'foo@bar.com',
20    'type' => 'profile'
21]);
22 
23$user->save();
24 
25// Update an existing model
26$user->update([
27    'name' => 'foobar'
28]);

This package includes more advanced usage of Dynamo, including a query builder that you can use without models (and outside of Laravel too). Also, the query builder supports things such as Condition Expressions. For example:

1DB::table('ProductCatalog')
2    ->condition('Id', 'attribute_not_exists')
3    ->orCondition('Price', 'attribute_not_exists')
4    ->putItem([/*...*/]);

Here’s an example of filter expressions, which can filter results with expressions before results are returned from the database:

 1$response = DB::table('Thread')
 2    ->filter('LastPostedBy', '=', 'User A')
 3    ->scan();
 4 
 5// orFilter()
 6$response = DB::table('Thread')
 7    ->filter('LastPostedBy', '=', 'User A')
 8    ->orFilter('LastPostedBy', '=', 'User B')
 9    ->scan();
10 
11// filterIn
12$response = DB::table('Thread')
13    ->filterIn('LastPostedBy', ['User A', 'User B'])
14    ->scan();
15 
16// filterBetween
17$response = DB::table('ProductCatalog')
18    ->filterBetween('Price', [0, 100])
19    ->scan();

The Laravel DynamoDB package also has detailed instructions on using a DynamoDB model for user authentication. You can learn more about this package, get full installation instructions, and view the source code on GitHub.

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