dynamodb-spring-boot

A simple wrapper for derjust's Spring Data DynamoDB.

Usage:

Add the dependency to your pom.xml

        <dependency>
            <groupId>com.github.elvisnovoa</groupId>
            <artifactId>dynamodb-spring-boot-starter</artifactId>
            <version>1.0.0</version>
        </dependency>

Then follow derjust's instructions to set up your repositories. For example, given a DynamoDB table named User, we have the corresponding POJO:

@DynamoDBTable(tableName = "User")
public class User {

    private String id;
    private String firstName;
    private String lastName;

    public User() {}

    public User(String firstName, String lastName) {
        this.firstName = firstName;
        this.lastName = lastName;
    }

    @DynamoDBHashKey
    @DynamoDBAutoGeneratedKey
    public String getId() {
        return id;
    }

    @DynamoDBAttribute
    public String getFirstName() {
        return firstName;
    }

    @DynamoDBAttribute
    public String getLastName() {
        return lastName;
    }
    
    // setters omitted
}

...and the following Spring Data Repository.

public interface UserRepository extends CrudRepository<User, String> {
    List<User> findByLastName(String lastName);
    List<User> findByFirstName(String firstName);
}

Customizing

This autoconfigure project uses the default spring-data-dynamodb configurations and reads any repositories in the same package of a @SpringBootApplication. To use different configurations, you can create your own configuration class and annotate it with @EnableDynamoDBRepositories. In that case, why are you using this?

The library also creates a com.amazonaws.services.dynamodbv2.AmazonDynamoDB bean with default configurations, but you can provide your own. For example:

    private AWSCredentialsProvider amazonAWSCredentialsProvider() {
        return new AWSStaticCredentialsProvider(amazonAWSCredentials());
    }

    private AWSCredentials amazonAWSCredentials() {
        return new BasicAWSCredentials("amazonAWSAccessKey", "amazonAWSSecretKey"); // Don't ever do this, plz
    }

    @Bean
    public AmazonDynamoDB amazonDynamoDB() {
        return AmazonDynamoDBClientBuilder.standard()
                .withCredentials(amazonAWSCredentialsProvider())
                .build();
    }